Printed from Kezuriba (kezuriba.net/en/materials/brands/)
Maker Grade Names vs. JIS Cross-Reference
Mold steels and tool steels are often sold under makers' own grade names. Based on maker documents and cross-reference tables from tool makers and distributors, this page lists the nearest JIS grade and steel family.For grades where the maker gives no JIS equivalent (DC53, NAK80, etc.), we show the steel family instead of guessing a JIS grade.
🔍Search by grade name
| Grade | Maker | Family | Nearest JIS | Hardness (maker-published) |
|---|---|---|---|---|
| SLD | Proterial (formerly Hitachi Metals) | Cold-work die steel (general purpose)SKD11 family | SKD11Consistent across multiple sources | As delivered ≤248HBW / typical working hardness 57–63HRC (quenched and tempered) |
| SLD-MAGIC | Proterial (formerly Hitachi Metals) | Cold-work die steel (high performance, developed grade)— | —Not confirmed in primary sources | As delivered ≤255HBW / typical working hardness 58–62HRC |
| SLD10 | Proterial (formerly Hitachi Metals) | Cold-work die steel (8%Cr type, high hardness)SKD11 (modified) family | —Not confirmed in primary sources | As delivered ≤248HBW / typical working hardness 59–65HRC |
| SLD8Not listed in the current Japanese technical tables (only on the English YSS page) | Proterial (formerly Hitachi Metals) | Cold-work die steel (for high-temperature tempering)SKD11 (modified) family | —Not confirmed in primary sources | As delivered ≤248HBW / as-quenched hardness ≥62HRC |
| HPM1Not listed in the current Japanese technical information (plastic mold steel table) | Proterial (formerly Hitachi Metals) | Pre-hardened steel (free-machining, precipitation-hardening type)AISI P21 family (precipitation-hardening, free-machining, 40HRC-class pre-hardened) | —Not confirmed in primary sources | Shipped at 37–41HRC (pre-hardened) |
| HPM7 | Proterial (formerly Hitachi Metals) | Pre-hardened steel (modified P20)AISI P20 family (modified SCM, 30HRC-class pre-hardened) | —Not confirmed in primary sources | 29–33HRC (pre-hardened) |
| HPM38 | Proterial (formerly Hitachi Metals) | Corrosion-resistant plastic mold steel (pre-hardened / quenched and tempered)Martensitic stainless steel (SUS type) | SUS420J2 (maker lists it as modified SUS420J2)Consistent across multiple sources | Pre-hardened 29–33HRC / quenched and tempered 50–55HRC |
| HPM50Not listed in current Proterial documents. Successor is CENA1 (note in MISUMI table) | Proterial (formerly Hitachi Metals) | Pre-hardened steel (precipitation-hardening, discontinued grade)AISI P21 family (precipitation-hardening) | —Not confirmed in primary sources | — |
| CENA1 | Proterial (formerly Hitachi Metals) | Pre-hardened steel (rust-resistant, precipitation-hardening)AISI P21 family (precipitation-hardening) | —Not confirmed in primary sources | Shipped at 37–42HRC (pre-hardened) |
| HPM77 | Proterial (formerly Hitachi Metals) | Pre-hardened steel (free-machining stainless)SUS-type free-machining (33HRC-class pre-hardened) | Modified SUS420 (free-machining)Single source, for reference | 29–33HRC (pre-hardened) |
| HPM31 | Proterial (formerly Hitachi Metals) | Quenched-and-tempered plastic mold steel (wear-resistant)SKD11 (modified) family | Modified SKD11Consistent across multiple sources | Working hardness 56–62HRC (quenched and tempered) / as delivered ≤248HBW |
| HPM-MAGICDiscontinued (note in the maker's technical information, which advises checking stock) | Proterial (formerly Hitachi Metals) | Pre-hardened steel (modified P20, 40HRC-class)AISI P20 family (40HRC-class pre-hardened) | —Not confirmed in primary sources | 37–41HRC (pre-hardened) |
| PSL | Proterial (formerly Hitachi Metals) | Pre-hardened steel (precipitation-hardening stainless)Precipitation-hardening stainless (SUS type, 35HRC-class) | Modified SUS630Consistent across multiple sources | Round bar 38–42HRC / flat bar 33–37HRC (pre-hardened) |
| FDAC | Proterial (formerly Hitachi Metals) | Pre-hardened steel (free-machining hot-work tool steel)SKD61 family (free-machining pre-hardened, 40HRC-class) | SKD61 (free-machining)Consistent across multiple sources | 38–42HRC (pre-hardened, no heat treatment needed) |
| DAC | Proterial (formerly Hitachi Metals) | Hot-work die steel (general purpose)SKD61 family (AISI H13) | SKD61Consistent across multiple sources | As delivered ≤229HBW / quenched and tempered ≥50HRC |
| DAC-MAGIC | Proterial (formerly Hitachi Metals) | Hot-work die steel (for die casting, high performance)— | Modified SKD61Single source, for reference | As delivered ≤229HBW / quenched and tempered ≥50HRC |
| DM | Proterial (formerly Hitachi Metals) | Hot-work tool steel (for forging dies)SKT4 family (Ni-Cr-Mo) | SKT4Consistent across multiple sources | As delivered ≤248HBW / quenched and tempered ≥42HRC |
| YXR33 | Proterial (formerly Hitachi Metals) | Matrix high-speed steel (for warm/hot forging dies)Matrix high-speed steel | —Not confirmed in primary sources | As delivered ≤241HBW / quenched and tempered 54–59HRC (56–59 for strength, 54–57 for toughness) |
| YXM1 | Proterial (formerly Hitachi Metals) | High-speed tool steel (ingot-melted HSS, Mo type)SKH51 family (AISI M2) | SKH51Consistent across multiple sources | As delivered ≤255HBW / typical working hardness 58–64HRC |
| ARK1 | Proterial (formerly Hitachi Metals) | Cold-work die steel (high toughness, free-machining)Matrix-type medium-Cr die steel | —Not confirmed in primary sources | As delivered ≤248HBW / as-quenched hardness ≥58HRC |
| SGT | Proterial (formerly Hitachi Metals) | Cold-work tool steel (oil-hardening alloy tool steel)SKS3 family (AISI O1) | SKS3Consistent across multiple sources | As delivered ≤217HBW / typical working hardness 59–65HRC |
| YCS3 | Proterial (formerly Hitachi Metals) | Cold-work tool steel (oil-hardening alloy tool steel)SKS93 family (AISI W5) | SKS93Consistent across multiple sources | As delivered ≤212HBW / typical working hardness 57–63HRC |
| YAG | Proterial (formerly Hitachi Metals) | Maraging steel (age-hardening type)Maraging steel | —Not confirmed in primary sources | 52–57HRC after age hardening |
| ZCD-M | Proterial (formerly Hitachi Metals) | Quenched-and-tempered plastic mold steel (for IC molds)SKD11 (modified) family | Modified SKD11Consistent across multiple sources | Working hardness 60–63HRC |
| DC11 | Daido Steel | Cold-work die steel (general purpose)SKD11 family (AISI D2) | SKD11Consistent across multiple sources | Annealed ≤255HBW / quenched and tempered ≥61HRC (150–200℃), high-temperature tempering 56–58HRC |
| DC53 | Daido Steel | Cold-work die steel (8%Cr type, general purpose)SKD11 (modified) family (8%Cr) | —Not confirmed in primary sources | 62–63HRC with high-temperature tempering (520–530℃) |
| PD613 | Daido Steel | Plastic mold steel for high hardness and high mirror finish (quenched and tempered, cold-work die steel type)SKD11 (modified) family | SKD11 mod. (maker's designation, AISI D2 mod.)Consistent across multiple sources | As delivered <248HBW (annealed) / 56–61HRC after heat treatment |
| NAK55 | Daido Steel | Pre-hardened steel (age-hardening, free-machining)AISI P21 family (Ni-Al-Cu age-hardening, 40HRC-class) | —Not confirmed in primary sources | 37–43HRC (surface hardness guaranteed, pre-hardened) |
| NAK80 | Daido Steel | Pre-hardened steel (age-hardening, high mirror finish)AISI P21 family (Ni-Al-Cu age-hardening, 40HRC-class) | —Not confirmed in primary sources | 37–43HRC (surface hardness guaranteed, pre-hardened) |
| PX5Replaced by PXA30 in the Japanese-language list | Daido Steel | Pre-hardened steel (modified P20, 30HRC-class)AISI P20 family (modified SCM, 30HRC-class) | —Not confirmed in primary sources | 30HRC-class (pre-hardened) |
| DH2F | Daido Steel | Pre-hardened steel (free-machining hot-work die steel)SKD61 family (free-machining pre-hardened, 40HRC-class) | SKD61 mod. (maker's designation)Consistent across multiple sources | 37–41HRC (surface hardness, pre-hardened) |
| DHA1 | Daido Steel | Hot-work die steel (general purpose)SKD61 family (AISI H13) | SKD61Consistent across multiple sources | Annealed ≤229HBW / working hardness: Al/Zn die casting dies 41–48HRC, hot extrusion dies 43–48HRC, hot press dies 42–50HRC |
| GOA | Daido Steel | Cold-work tool steel (oil-hardening)SKS3 family (AISI O1 mod.) | SKS3 (maker lists it as SKS3 mod.)Consistent across multiple sources | Annealed ≤217HBW / quenched and tempered ≥61HRC (working 58–62HRC) |
| S-STAR | Daido Steel | Corrosion-resistant plastic mold steel (pre-hardened / quenched and tempered)Martensitic stainless steel (13Cr) | Modified SUS420J2 (maker's designation)Consistent across multiple sources | As delivered 31–34HRC (pre-hardened) / 53HRC after quenching and tempering |
| GFA | Daido Steel | Hot-work tool steel (for forging dies, delivered pre-hardened)SKT4 family | SKT4 mod. (maker's designation)Consistent across multiple sources | Annealed ≤241HBW / delivered quenched and tempered to the specified hardness |
| KD11 | Nippon Koshuha Steel | Cold-work tool steel (general-purpose die steel)SKD11 family | SKD11Consistent across multiple sources | Quenched and tempered 58–60HRC |
| KD11S | Nippon Koshuha Steel | Cold-work die steel (SKD11-based, free-machining)SKD11 (modified) family | —Not confirmed in primary sources | — |
| KDA | Nippon Koshuha Steel | Hot-work tool steel (general purpose)SKD61 family | SKD61Consistent across multiple sources | Quenched and tempered 42–52HRC |
| KAPNot listed in the maker's current list | Nippon Koshuha Steel | Pre-hardened steel (precipitation-hardening, free-machining)AISI P21 family (precipitation-hardening, free-machining, 40HRC-class) | —Not confirmed in primary sources | — |
| KTV | Nippon Koshuha Steel | Hot-work tool steel (for forging)SKT4 family | SKT4Consistent across multiple sources | Quenched and tempered 35–50HRC |
| QCM8 | Sanyo Special Steel | Cold-work die steel (high hardness, high toughness)SKD11 (modified) family | —Not confirmed in primary sources | Quenched and tempered 55–62HRC (1020–1050℃ air cooling, 500–550℃ × 2 times) |
| QD61 | Sanyo Special Steel | Hot-work die steel (general purpose)SKD61 family | SKD61Consistent across multiple sources | Quenched and tempered 40–52HRC |
| PCM40 | Sanyo Special Steel | Pre-hardened steel (precipitation-hardening)AISI P21 family (precipitation-hardening, 40HRC-class) | —Not confirmed in primary sources | 35–45HRC (pre-hardened) |
| AUD15Made to order | Aichi Steel | Cold-work die steel (high hardness, high toughness, made to order)SKD11 (modified) family | SKD11 modified (maker's designation: "AICHI SKD11 modified")Consistent across multiple sources | 62–63HRC with tempering at 520–530℃ |
| SK301Made to order | Aichi Steel | Cold-work tool steel (oil-hardening carbon tool steel, made to order)SKS93 family | SKS93Consistent across multiple sources | — |
| STAVAX ESR | Uddeholm (voestalpine) | Corrosion-resistant plastic mold steel (ESR remelted, quenched and tempered)Martensitic stainless steel (SUS type) | SUS420 familySingle source, for reference | As delivered approx. 190HB (annealed) / recommended working hardness 45–52HRC (injection molds for thermoplastics and thermosets) |
| NIMAX | Uddeholm (voestalpine) | Pre-hardened steel (low carbon, 40HRC-class)AISI P20 family (40HRC-class pre-hardened) | —Not confirmed in primary sources | As delivered 360–400HB (designed to be used as delivered) |
| ELMAX SuperClean | Uddeholm (voestalpine) | Powder stainless steel for mold use (corrosion- and wear-resistant)High-C, high-Cr powder stainless steel | SUS440C family (powder)Single source, for reference | As delivered approx. 280HB (annealed) |
| K110 | Böhler (voestalpine BÖHLER) | Cold-work tool steel (12%Cr ledeburitic steel)SKD11 / AISI D2 family | SKD11Consistent across multiple sources | As delivered ≤250HB (annealed) |
| M310 ISOPLAST | Böhler (voestalpine BÖHLER) | Corrosion-resistant plastic mold steel (ESR remelted)Martensitic stainless steel (W-Nr. 1.2083 family) | SUS420J2 (maker lists it as "~SUS420J2")Single source, for reference | As delivered ≤225HB (annealed) |
Grades with "—" under "Nearest JIS" are ones for which the maker gives no JIS equivalent. Use the Family column as a guide.
📋Details for each grade
Proterial (formerly Hitachi Metals)
SLD Cold-work die steel (general purpose)
- Nearest JIS
- SKD11(The maker itself lists JIS-SKD11 (described as "JIS-similar" in its technical information). The Mitsubishi Materials and MISUMI cross-reference tables also place it in the SKD11 row.)
- Family
- SKD11 family
- Maker's designation
- AISI D2 / W-Nr. 1.2379 (YSS page)
- Hardness
- As delivered ≤248HBW / typical working hardness 57–63HRC (quenched and tempered)
- Main applications
- Cold press dies, thread rolling dies, shear blades, gauges
- Features
- General-purpose cold-work die steel. High wear resistance, good hardenability and low quench stress (description in the YSS list)
- Source
- [1][2][3][4][5][6]
SLD-MAGIC Cold-work die steel (high performance, developed grade)
- Nearest JIS
- —(The maker describes it as a "developed grade" / "Original steel" and gives no JIS-similar designation. It is not in the MISUMI or Mitsubishi Materials cross-reference tables either.)
- Family
- —(No classification found in the cross-reference tables)
- Maker's designation
- Free-machining elements added (chemical composition table in the technical information). Composition values are not published.
- Hardness
- As delivered ≤255HBW / typical working hardness 58–62HRC
- Main applications
- Cold press dies, shear blades, gauges
- Features
- Cold-work die steel marketed as combining longer die life with easier die making
- Source
- [6][7][8]
SLD10 Cold-work die steel (8%Cr type, high hardness)
- Nearest JIS
- —(The maker's "JIS-similar" column says "8%Cr steel" and gives no JIS designation.)
- Family
- SKD11 (modified) family(In the SKD11 (modified) row of MISUMI's press steel brand cross-reference table. The maker describes it as 8%Cr steel (classified as "Other" in MISUMI's mold material comparison table).)
- Maker's designation
- Original steel (YSS)
- Hardness
- As delivered ≤248HBW / typical working hardness 59–65HRC
- Main applications
- Thread rolling dies, cold press dies, rolls, slitter blades
- Features
- Combines very high hardness for a die steel (62–64HRC) with toughness (YSS list)
- Source
- [4][2][6][9]
SLD8 Cold-work die steel (for high-temperature tempering)
- Nearest JIS
- —(The maker describes it as "Original steel". No JIS designation is given.)
- Family
- SKD11 (modified) family(In the SKD11 (modified) / high-temperature tempering steel row of MISUMI's table. In Mitsubishi Materials' table it shares a row with DC53 and KD21 (JIS column blank).)
- Maker's designation
- Original steel (YSS)
- Hardness
- As delivered ≤248HBW / as-quenched hardness ≥62HRC
- Main applications
- Thread rolling dies, cold press dies, shear blades
- Features
- Not listed in the current Japanese technical information (chemical composition and heat treatment tables for cold-work tool steel)
- Status
- Not listed in the current Japanese technical tables (only on the English YSS page)
- Source
- [5][10][11][3]
HPM1 Pre-hardened steel (free-machining, precipitation-hardening type)
- Nearest JIS
- —(The maker's YSS page says "JIS na". The JIS column is also blank in the cross-reference table (classified as AISI P21).)
- Family
- AISI P21 family (precipitation-hardening, free-machining, 40HRC-class pre-hardened)
- Maker's designation
- Listed together with AISI P21 / W-Nr. 1.2330 (YSS page). Typical composition: Ni 3.0, with Cu, Al and S added
- Hardness
- Shipped at 37–41HRC (pre-hardened)
- Main applications
- General-purpose molds for home appliances etc., plates and holders
- Features
- Machinability rated A in the YSS comparison table. Free-machining steel with Ni, Cu and Al precipitation hardening plus added S
- Status
- Not listed in the current Japanese technical information (plastic mold steel table)
- Source
- [12][10][5][3]
HPM7 Pre-hardened steel (modified P20)
- Nearest JIS
- —(The maker's YSS page says "JIS na"; the chemical composition family in the technical information is "modified P20".)
- Family
- AISI P20 family (modified SCM, 30HRC-class pre-hardened)
- Maker's designation
- AISI P20 (YSS page)
- Hardness
- 29–33HRC (pre-hardened)
- Main applications
- Molds where weldability and machinability matter (automotive, home appliance, housing equipment products)
- Features
- For medium to large general-purpose plastic molds
- Source
- [13][14][5][3][10]
HPM38 Corrosion-resistant plastic mold steel (pre-hardened / quenched and tempered)
- Nearest JIS
- SUS420J2 (maker lists it as modified SUS420J2)(The YSS page says JIS-SUS420J2, and the technical information says "modified SUS420J2". Mitsubishi Materials' table puts it in the SUS420 row, and MISUMI lists "SUS type".)
- Family
- Martensitic stainless steel (SUS type)
- Maker's designation
- AISI 420F / DIN X30Cr13 / W-Nr. 1.4028 (YSS page)
- Hardness
- Pre-hardened 29–33HRC / quenched and tempered 50–55HRC
- Main applications
- Flame-retardant resins and transparent parts (home appliance, medical, food), rubber molds, corrosion-resistant mirror-finish molds
- Features
- For plastic molds where corrosion resistance and mirror finish matter
- Source
- [15][13][3][10][5]
HPM50 Pre-hardened steel (precipitation-hardening, discontinued grade)
- Nearest JIS
- —(No maker document found)
- Family
- AISI P21 family (precipitation-hardening)(In Mitsubishi Materials' table it shares a row with NAK80 and KAP2 (P21 group). MISUMI lists "CENA1 (HPM50)" in the precipitation-hardening steel group, with a note explaining that CENA1 is an improved (successor) steel of HPM50.)
- Maker's designation
- No maker document
- Hardness
- —
- Main applications
- (No maker document)
- Features
- Per the note in MISUMI's table, the successor is CENA1
- Status
- Not listed in current Proterial documents. Successor is CENA1 (note in MISUMI table)
- Source
- [3][10]
CENA1 Pre-hardened steel (rust-resistant, precipitation-hardening)
- Nearest JIS
- —(The maker's YSS page says "JIS na".)
- Family
- AISI P21 family (precipitation-hardening)(The YSS page lists it as AISI-P21.)
- Maker's designation
- AISI P21 (YSS page)
- Hardness
- Shipped at 37–42HRC (pre-hardened)
- Main applications
- Rust-resistant molds where mirror finish, texture and EDM surface matter; molds that are not welded
- Features
- High-performance plastic mold steel combining rust resistance and machinability (YSS description). Successor to HPM50 (note in MISUMI table)
- Source
- [16][10][5]
HPM77 Pre-hardened steel (free-machining stainless)
- Nearest JIS
- Modified SUS420 (free-machining)(Notation from the chemical composition family in the technical information. The YSS page says "JIS na" and lists it together with AISI 420F.)
- Family
- SUS-type free-machining (33HRC-class pre-hardened)
- Maker's designation
- AISI 420F / DIN X30Cr13 / W-Nr. 1.4028 (YSS page)
- Hardness
- 29–33HRC (pre-hardened)
- Main applications
- Corrosion-resistant mold bases, rubber molds
- Features
- Free-machining martensitic stainless steel for mold base material
- Source
- [13][10][5][17]
HPM31 Quenched-and-tempered plastic mold steel (wear-resistant)
- Nearest JIS
- Modified SKD11(The technical information says "modified SKD11", while the heading on the English YSS page is "AISI-D2 / W-Nr.1.2379 / JIS-SUS420J2", so they disagree (SUS420J2 may be an error).)
- Family
- SKD11 (modified) family
- Maker's designation
- AISI D2 / W-Nr. 1.2379 (YSS page)
- Hardness
- Working hardness 56–62HRC (quenched and tempered) / as delivered ≤248HBW
- Main applications
- Wear-resistant molds for precision engineering plastics (gears, connectors, IC molds)
- Features
- High-wear-resistance grade for mass production
- Source
- [13][10][5][18]
HPM-MAGIC Pre-hardened steel (modified P20, 40HRC-class)
- Nearest JIS
- —(The maker describes it as a "developed grade", and the chemical composition family is "modified P20".)
- Family
- AISI P20 family (40HRC-class pre-hardened)(All maker documents say modified P20. MISUMI's mold material comparison table lists it in the AISI P21 row, so the classification disagrees.)
- Maker's designation
- AISI P20 (YSS page)
- Hardness
- 37–41HRC (pre-hardened)
- Main applications
- General-purpose mass-production molds (automotive, office equipment, home appliances)
- Features
- General-purpose 40HRC-class pre-hardened steel
- Status
- Discontinued (note in the maker's technical information, which advises checking stock)
- Source
- [13][2][19][5]
PSL Pre-hardened steel (precipitation-hardening stainless)
- Nearest JIS
- Modified SUS630(The technical information says "modified SUS630", and Mitsubishi Materials' table puts it in the SUS630 row. The YSS page says "JIS na" and lists it together with AISI 630 / W-Nr. 1.4542.)
- Family
- Precipitation-hardening stainless (SUS type, 35HRC-class)
- Maker's designation
- AISI 630 / DIN X5CrNiCuNb16-4 / W-Nr. 1.4542 (YSS page)
- Hardness
- Round bar 38–42HRC / flat bar 33–37HRC (pre-hardened)
- Main applications
- Molds for PVC and foamed resins, rubber molds
- Features
- For molds that need higher corrosion resistance
- Source
- [13][3][10][5][20]
FDAC Pre-hardened steel (free-machining hot-work tool steel)
- Nearest JIS
- SKD61 (free-machining)(The maker lists it as "SKD61 free-machining". MISUMI puts it in the SKD61 group (free-machining) / SKD61 (modified) row. In Mitsubishi Materials' table it is in the hot-work tool steel column in the same row as DH2F and KDAS (JIS column blank).)
- Family
- SKD61 family (free-machining pre-hardened, 40HRC-class)
- Maker's designation
- Original steel (YSS). S 0.1 added
- Hardness
- 38–42HRC (pre-hardened, no heat treatment needed)
- Main applications
- Die casting dies, plastic molds (engineering plastics, slide cores), small-lot molds and peripheral parts
- Features
- Free-machining hot-work tool steel supplied pre-hardened
- Source
- [21][22][13][10][5][3][23][24][25]
DAC Hot-work die steel (general purpose)
- Nearest JIS
- SKD61
- Family
- SKD61 family (AISI H13)
- Maker's designation
- AISI H13 / DIN X40CrMoV5-1 / W-Nr. 1.2344 (YSS page)
- Hardness
- As delivered ≤229HBW / quenched and tempered ≥50HRC
- Main applications
- Die casting dies, extrusion dies, hot forging dies, plastic molds
- Features
- General-purpose hot-work tool steel with a good balance of high-temperature strength and toughness, and excellent hardenability
- Source
- [26][22][3][5][10][23][25]
DAC-MAGIC Hot-work die steel (for die casting, high performance)
- Nearest JIS
- Modified SKD61(Notation in the maker's "JIS-similar" column. Not listed in the MISUMI or Mitsubishi Materials cross-reference tables.)
- Family
- —(Not listed in the cross-reference tables)
- Maker's designation
- Original steel (YSS). Composition is not published as it is a developed grade
- Hardness
- As delivered ≤229HBW / quenched and tempered ≥50HRC
- Main applications
- Die casting dies
- Features
- High level of both high-temperature strength and toughness. Excellent heat-check resistance and stress corrosion cracking resistance
- Source
- [21][22][23][27][28][25]
DM Hot-work tool steel (for forging dies)
- Nearest JIS
- SKT4
- Family
- SKT4 family (Ni-Cr-Mo)
- Maker's designation
- Typical composition C0.5, Ni1.8, Cr1.3, Mo0.4, V0.2 (technical information)
- Hardness
- As delivered ≤248HBW / quenched and tempered ≥42HRC
- Main applications
- Hammer dies, aluminum forging dies, forging bolsters, extrusion auxiliary tooling
- Features
- Low high-temperature strength and softening resistance, but high toughness
- Source
- [21][22][3][5][23]
YXR33 Matrix high-speed steel (for warm/hot forging dies)
- Nearest JIS
- —(The maker's "JIS-similar" column says "matrix high-speed steel" and gives no JIS designation.)
- Family
- Matrix high-speed steel
- Maker's designation
- Original steel (YSS)
- Hardness
- As delivered ≤241HBW / quenched and tempered 54–59HRC (56–59 for strength, 54–57 for toughness)
- Main applications
- Warm/hot precision forging dies, die casting core pins, general-purpose dies
- Features
- High-toughness matrix high-speed steel with high high-temperature strength, and excellent hot wear resistance and resistance to molten-metal erosion
- Source
- [2][21][4][5][6][23][29][30]
YXM1 High-speed tool steel (ingot-melted HSS, Mo type)
- Nearest JIS
- SKH51
- Family
- SKH51 family (AISI M2)
- Maker's designation
- AISI M2 / DIN HS6-5-2 / W-Nr. 1.3343 (YSS page)
- Hardness
- As delivered ≤255HBW / typical working hardness 58–64HRC
- Main applications
- Cold forging dies, cold heading dies, slitters
- Features
- Standard Mo-type high-speed steel with excellent toughness
- Source
- [31][2][3][4][6]
ARK1 Cold-work die steel (high toughness, free-machining)
- Nearest JIS
- —(The maker describes it as "Original steel". No JIS designation is given.)
- Family
- Matrix-type medium-Cr die steel(Classification in MISUMI's press steel brand cross-reference table. Classified as "Other" in the mold material comparison table.)
- Maker's designation
- Original steel (YSS)
- Hardness
- As delivered ≤248HBW / as-quenched hardness ≥58HRC
- Main applications
- Cold press dies, die plates, stripper plates, dies for printed circuit boards
- Features
- Cold-work die steel with high toughness and improved machinability (YSS list)
- Source
- [4][32][5][30]
SGT Cold-work tool steel (oil-hardening alloy tool steel)
- Nearest JIS
- SKS3
- Family
- SKS3 family (AISI O1)
- Maker's designation
- AISI O1 / DIN 100MnCrW4 / W-Nr. 1.2510 (YSS page)
- Hardness
- As delivered ≤217HBW / typical working hardness 59–65HRC
- Main applications
- Precision finishing tools, gauges
- Features
- General-purpose cold-work die steel with good machinability. Care is needed when hardening large dies and with wire EDM (YSS list)
- Source
- [33][2][3][4][6]
YCS3 Cold-work tool steel (oil-hardening alloy tool steel)
- Nearest JIS
- SKS93
- Family
- SKS93 family (AISI W5)
- Maker's designation
- AISI W5 (YSS page)
- Hardness
- As delivered ≤212HBW / typical working hardness 57–63HRC
- Main applications
- Various die tooling, gauges
- Source
- [34][2][3][4][6]
YAG Maraging steel (age-hardening type)
- Nearest JIS
- —(The maker describes it as "Original steel". No JIS designation.)
- Family
- Maraging steel
- Maker's designation
- Original steel (YSS). In the technical information table it is YAG300 (super-high-strength steel)
- Hardness
- 52–57HRC after age hardening
- Main applications
- Molds needing high toughness (thin-wall core pins), ultra-mirror finish (optical lenses)
- Features
- Ultra-high-toughness maraging steel
- Source
- [35][13][10][5][3]
ZCD-M Quenched-and-tempered plastic mold steel (for IC molds)
- Nearest JIS
- Modified SKD11(The technical information says "modified SKD11", while the YSS page says JIS-SKD11 / AISI D2 / W-Nr. 1.2379. MISUMI lists it in the SKD11 (modified) row.)
- Family
- SKD11 (modified) family
- Maker's designation
- AISI D2 / W-Nr. 1.2379 (YSS page)
- Hardness
- Working hardness 60–63HRC
- Main applications
- IC molds
- Source
- [13][36][5]
Daido Steel
DC11 Cold-work die steel (general purpose)
- Nearest JIS
- SKD11
- Family
- SKD11 family (AISI D2)
- Maker's designation
- AISI D2 eq. / WNr. 1.2379 eq. (maker's list)
- Hardness
- Annealed ≤255HBW / quenched and tempered ≥61HRC (150–200℃), high-temperature tempering 56–58HRC
- Main applications
- Blanking dies, forming rolls, drawing dies, shear blades, gauges, thread rolling rolls, cold forging dies
- Features
- Air-hardening with small heat treatment distortion. Good wear resistance, and about 20% better machinability than SKD1
- Source
- [37][38][3][4][5]
DC53 Cold-work die steel (8%Cr type, general purpose)
- Nearest JIS
- —(The maker's equivalent standard columns (JIS/AISI/WNr.) are all "-".)
- Family
- SKD11 (modified) family (8%Cr)(The maker describes it as an "8%Cr high-hardness, high-toughness steel", a new general-purpose cold-work die steel that makes up for SKD11's weaknesses (insufficient hardness at high-temperature tempering and low toughness). MISUMI classifies it as SKD11 (modified) 8Cr type / "SKD11-type die steel". Mitsubishi Materials' table has it in a row with a blank JIS column.)
- Maker's designation
- No equivalent standard published by the maker
- Hardness
- 62–63HRC with high-temperature tempering (520–530℃)
- Main applications
- General-purpose and precision cold press dies, thread rolling dies, bending and forming dies, slitters
- Features
- About twice the toughness of SKD11, giant carbides refined to 1/3 or less, good machinability and grindability (maker catalog)
- Source
- [37][39][4][10][40][3]
PD613 Plastic mold steel for high hardness and high mirror finish (quenched and tempered, cold-work die steel type)
- Nearest JIS
- SKD11 mod. (maker's designation, AISI D2 mod.)(In MISUMI's SKD11 (modified) row. The equivalent standard column in the maker's web list is "-".)
- Family
- SKD11 (modified) family
- Maker's designation
- JIS SKD11 mod. (AISI D2 mod.) (catalog chemical composition column)
- Hardness
- As delivered <248HBW (annealed) / 56–61HRC after heat treatment
- Main applications
- High-hardness, high-mirror-finish plastic molds (precision engineering plastic molds, IC substrates), cold press dies
- Features
- Special melting gives reliable quality. High mirror polishability, small heat treatment dimensional change, good nitriding and texturing
- Source
- [41][10][5][42]
NAK55 Pre-hardened steel (age-hardening, free-machining)
- Nearest JIS
- —(The maker's "applicable JIS designation" and equivalent JIS columns are blank (listed as AISI P21 mod.).)
- Family
- AISI P21 family (Ni-Al-Cu age-hardening, 40HRC-class)
- Maker's designation
- AISI P21 mod. (maker's list)
- Hardness
- 37–43HRC (surface hardness guaranteed, pre-hardened)
- Main applications
- High-performance precision plastic molds, rubber molds, press dies (benders etc.), industrial equipment parts
- Features
- Ni-Al-Cu age-hardening type. Good machinability, finished surface and build-up weldability, and little distortion in use. Free-machining with S added
- Source
- [42][43][10][5][3]
NAK80 Pre-hardened steel (age-hardening, high mirror finish)
- Nearest JIS
- —(The maker's "applicable JIS designation" and equivalent JIS columns are blank (listed as AISI P21 mod.).)
- Family
- AISI P21 family (Ni-Al-Cu age-hardening, 40HRC-class)
- Maker's designation
- AISI P21 mod. (maker's list)
- Hardness
- 37–43HRC (surface hardness guaranteed, pre-hardened)
- Main applications
- Molds where mirror polishability matters (e.g. transparent parts), and molds where the EDM surface finish matters
- Features
- Material with improved mirror polishability, EDM surface finish and toughness over NAK55 (no S added). Can substitute for matte (pear-skin) texturing
- Source
- [42][43][10][5][3]
PX5 Pre-hardened steel (modified P20, 30HRC-class)
- Nearest JIS
- —(The maker's equivalent JIS column is "-".)
- Family
- AISI P20 family (modified SCM, 30HRC-class)
- Maker's designation
- AISI P20 mod. / WNr. 1.2330 mod. (English list)
- Hardness
- 30HRC-class (pre-hardened)
- Main applications
- General-purpose plastic molds
- Features
- The Japanese steel grade list shows its successor PXA30 (30–33HRC, a material with fewer inclusions than modified P20 steel and better mirror finish), while PX5 remains in the English list and the physical properties list
- Status
- Replaced by PXA30 in the Japanese-language list
- Source
- [44][10][5][3][45][46]
DH2F Pre-hardened steel (free-machining hot-work die steel)
- Nearest JIS
- SKD61 mod. (maker's designation)(MISUMI lists it in the SKD61 group (free-machining) / SKD61 (modified) row. In Mitsubishi Materials' table it is in the hot-work column in the same row as FDAC and KDAS (JIS column blank).)
- Family
- SKD61 family (free-machining pre-hardened, 40HRC-class)
- Maker's designation
- AISI H13 mod. / WNr. 1.2344 mod. (maker's list)
- Hardness
- 37–41HRC (surface hardness, pre-hardened)
- Main applications
- Al and Zn die casting dies and parts, plastic molds, Al extrusion dies, press dies and parts, machine parts
- Features
- No additional heat treatment needed and good machinability. Excellent heat-check resistance and erosion resistance
- Source
- [42][47][10][5][3][48]
DHA1 Hot-work die steel (general purpose)
- Nearest JIS
- SKD61
- Family
- SKD61 family (AISI H13)
- Maker's designation
- AISI H13 eq. / WNr. 1.2344 eq. (maker's list)
- Hardness
- Annealed ≤229HBW / working hardness: Al/Zn die casting dies 41–48HRC, hot extrusion dies 43–48HRC, hot press dies 42–50HRC
- Main applications
- Al and Zn die casting dies and parts, hot extrusion dies, hot press dies, hot shear blades
- Features
- Fine spheroidal carbides, excellent hardenability and resistance to softening at high-temperature tempering, resistant to thermal fatigue and erosion
- Source
- [47][49][3][5][10]
GOA Cold-work tool steel (oil-hardening)
- Nearest JIS
- SKS3 (maker lists it as SKS3 mod.)
- Family
- SKS3 family (AISI O1 mod.)
- Maker's designation
- AISI O1 mod. / WNr. 1.2510 mod. (maker's list)
- Hardness
- Annealed ≤217HBW / quenched and tempered ≥61HRC (working 58–62HRC)
- Main applications
- Cold press blanking dies, forming dies, punches, coining dies, shear blades, gauges
- Features
- Better hardenability than JIS SKS3, so high hardness is obtained even in relatively large sections. Good wear resistance from W and Cr carbides
- Source
- [37][3][4][5][50]
S-STAR Corrosion-resistant plastic mold steel (pre-hardened / quenched and tempered)
- Nearest JIS
- Modified SUS420J2 (maker's designation)(Mitsubishi Materials' table has it in the SUS420 row, and MISUMI lists "SUS type".)
- Family
- Martensitic stainless steel (13Cr)
- Maker's designation
- AISI 420 mod. / WNr. 1.4028 mod. (maker's list)
- Hardness
- As delivered 31–34HRC (pre-hardened) / 53HRC after quenching and tempering
- Main applications
- Molds for transparent resins, medical devices, cosmetics and food containers, molds that must not rust, replacement for Cr-plated molds
- Features
- Ultra-mirror finish from special melting (double melt) and homogenizing treatment. Corrosion resistance to flame-retardant resins and wear resistance against glass fiber
- Source
- [42][51][3][10][5]
GFA Hot-work tool steel (for forging dies, delivered pre-hardened)
- Nearest JIS
- SKT4 mod. (maker's designation)(Mitsubishi Materials and MISUMI both list it in the SKT4 row.)
- Family
- SKT4 family
- Maker's designation
- AISI L6 mod. / WNr. 1.2714 mod. (maker's list)
- Hardness
- Annealed ≤241HBW / delivered quenched and tempered to the specified hardness
- Main applications
- Hammer dies, hot die forging dies (connecting rods, crankshafts, etc.), bolsters, rams, etc.
- Features
- General-purpose forging die steel with higher toughness and strength, improved from JIS SKT4
- Source
- [52][53][3][5]
Nippon Koshuha Steel
KD11 Cold-work tool steel (general-purpose die steel)
- Nearest JIS
- SKD11
- Family
- SKD11 family
- Hardness
- Quenched and tempered 58–60HRC
- Main applications
- Press dies, rolls, gauges
- Features
- Corrosion- and wear-resistant cold-work tool steel (maker's features column)
- Source
- [54][3][4][5]
KD11S Cold-work die steel (SKD11-based, free-machining)
- Nearest JIS
- —(No corresponding JIS grade in the maker's list)
- Family
- SKD11 (modified) family(The maker explains that machinability is improved through carbide morphology control without losing SKD11's basic performance. MISUMI lists it in the SKD11 (modified) row (the Japanese a0205 page writes "KD11 SKD21", which may be an error).)
- Hardness
- —
- Main applications
- (No applications listed in the maker's list)
- Features
- Cold-work tool steel with improved machinability through carbide morphology control
- Source
- [54][5][55]
KDA Hot-work tool steel (general purpose)
- Nearest JIS
- SKD61
- Family
- SKD61 family
- Hardness
- Quenched and tempered 42–52HRC
- Main applications
- Die casting dies, hot forging dies, extrusion tools
- Features
- General-purpose hot-work tool steel
- Source
- [56][3][5][10]
KAP Pre-hardened steel (precipitation-hardening, free-machining)
- Nearest JIS
- —(No maker document found (there is no KAP in the current site's plastic mold steel list))
- Family
- AISI P21 family (precipitation-hardening, free-machining, 40HRC-class)
- Maker's designation
- No maker document
- Hardness
- —
- Main applications
- (No maker document)
- Features
- The current maker site lists KAP65 (high-grade free-machining), KAP88 (high mirror finish) and KAP90F (SKD61 free-machining) as 38–42HRC pre-hardened steels
- Status
- Not listed in the maker's current list
- Source
- [10][5][3][57]
KTV Hot-work tool steel (for forging)
- Nearest JIS
- SKT4
- Family
- SKT4 family
- Hardness
- Quenched and tempered 35–50HRC
- Main applications
- Forging dies, hot forging dies, extrusion tools
- Features
- General-purpose forging steel (maker's features column)
- Source
- [56][3][5]
Sanyo Special Steel
QCM8 Cold-work die steel (high hardness, high toughness)
- Nearest JIS
- —(The maker's compatible JIS designation column is "−".)
- Family
- SKD11 (modified) family(The maker explains that by controlling carbide size it surpasses SKD11 in hardness, toughness, fatigue strength and wear resistance. MISUMI lists it in the SKD11 (modified) row.)
- Hardness
- Quenched and tempered 55–62HRC (1020–1050℃ air cooling, 500–550℃ × 2 times)
- Main applications
- Cold-work die steel category (the maker describes it as for cold forging, pressing and fine blanking)
- Features
- Cold-work die steel combining high hardness and high toughness
- Source
- [58][4][5][10][59]
QD61 Hot-work die steel (general purpose)
- Nearest JIS
- SKD61
- Family
- SKD61 family
- Hardness
- Quenched and tempered 40–52HRC
- Main applications
- Hot-work die steel category (the maker describes it as for hot and warm forging, hot extrusion and die casting dies)
- Source
- [58][5][10][59]
PCM40 Pre-hardened steel (precipitation-hardening)
- Nearest JIS
- —(The maker's compatible JIS designation column is "−".)
- Family
- AISI P21 family (precipitation-hardening, 40HRC-class)(In the P21 row of both MISUMI tables. The maker only says "pre-hardened".)
- Hardness
- 35–45HRC (pre-hardened)
- Main applications
- Plastic molds
- Features
- The derivative PCM40S is a 40HRC-class material with fewer hard inclusions and better mirror finish without remelting (maker's description)
- Source
- [10][5][58]
Aichi Steel
AUD15 Cold-work die steel (high hardness, high toughness, made to order)
- Nearest JIS
- SKD11 modified (maker's designation: "AICHI SKD11 modified")(In MISUMI's SKD11 (modified) / high-temperature tempering steel row.)
- Family
- SKD11 (modified) family
- Hardness
- 62–63HRC with tempering at 520–530℃
- Main applications
- Cold press dies, shear blades, cold forming rolls, thread rolling dies, hobs for cold hobbing, gauges, wear-resistant jigs
- Features
- High-hardness material with better toughness and machinability than SKD11. Suited to wire cutting, with good wear resistance (the maker describes it as a patented steel)
- Status
- Made to order
- Source
- [60][4][5]
SK301 Cold-work tool steel (oil-hardening carbon tool steel, made to order)
- Nearest JIS
- SKS93(The maker says "equivalent to JIS SKS93".)
- Family
- SKS93 family
- Hardness
- —
- Main applications
- Cold press dies, jigs and tools, gauges
- Features
- Steel with hardenability raised by adding Mn and Cr to SK3, so it can be oil-hardened (maker's description)
- Status
- Made to order
- Source
- [60][3][4]
Uddeholm (voestalpine)
STAVAX ESR Corrosion-resistant plastic mold steel (ESR remelted, quenched and tempered)
- Nearest JIS
- SUS420 family(In Mitsubishi Materials' table it is in the JIS SUS420 row. MISUMI only classifies it as "SUS type". The maker lists it as AISI 420 modified and gives no JIS. BÖHLER M310, from the same W-Nr. 1.2083 family, is listed by the maker as ~SUS420J2.)
- Family
- Martensitic stainless steel (SUS type)
- Maker's designation
- AISI 420 modified (data sheet) / W.nr 1.2083, AISI 420 (voestalpine product page)
- Hardness
- As delivered approx. 190HB (annealed) / recommended working hardness 45–52HRC (injection molds for thermoplastics and thermosets)
- Main applications
- Injection molds needing corrosion resistance and mirror finish (PVC, acetate, optical parts, medical containers, etc.)
- Features
- ESR gives very few inclusions, and good corrosion resistance, mirror finish, wear resistance and dimensional stability in heat treatment
- Source
- [3][10][5][61][62]
NIMAX Pre-hardened steel (low carbon, 40HRC-class)
- Nearest JIS
- —(No JIS designation in maker documents or cross-reference tables)
- Family
- AISI P20 family (40HRC-class pre-hardened)(Only in the P20 group 40HRC row of MISUMI (English version).)
- Maker's designation
- Typical composition C0.1, Mn2.5, Cr3.0, Mo0.3, Ni1.0 (data sheet)
- Hardness
- As delivered 360–400HB (designed to be used as delivered)
- Main applications
- Plastic injection molds, packaging industry, holders for forging and die casting dies, machine parts
- Features
- Low-carbon pre-hardened steel with excellent machinability and toughness. Hardness cannot be raised by heat treatment (data sheet)
- Source
- [10][63][64]
ELMAX SuperClean Powder stainless steel for mold use (corrosion- and wear-resistant)
- Nearest JIS
- SUS440C family (powder)(In Mitsubishi Materials' table it is in the SUS440C row (noted as Sinterizado = powder). MISUMI lists it in the 57HRC "SUS type" row.)
- Family
- High-C, high-Cr powder stainless steel
- Maker's designation
- Typical composition C1.7, Cr18.0, Mo1.0, V3.0 (data sheet)
- Hardness
- As delivered approx. 280HB (annealed)
- Main applications
- Molds for filled engineering plastics (electronic parts such as connectors, switches and ICs), food processing parts, knives
- Features
- Powder metallurgy combines wear resistance and corrosion resistance
- Source
- [3][65][4][5]
Böhler (voestalpine BÖHLER)
K110 Cold-work tool steel (12%Cr ledeburitic steel)
- Nearest JIS
- SKD11(MISUMI's mold material comparison table lists K110 in both the "AISI D2" and "SKD11 (modified)" rows, so the tables group it differently. The maker's data sheet gives no JIS.)
- Family
- SKD11 / AISI D2 family
- Maker's designation
- 1.2379 / X153CrMoV12 / ~T30402 / D2 (data sheet)
- Hardness
- As delivered ≤250HB (annealed)
- Main applications
- Blanking and fine blanking dies, rolling, industrial knives, cold forming and coining, rolls, etc.
- Features
- The maker describes it as having the best balance of wear resistance, compressive strength and toughness among 12%Cr steels
- Source
- [66][4][55][67][5]
M310 ISOPLAST Corrosion-resistant plastic mold steel (ESR remelted)
- Nearest JIS
- SUS420J2 (maker lists it as "~SUS420J2")(Two documents from the same maker group. Not confirmed in cross-reference tables.)
- Family
- Martensitic stainless steel (W-Nr. 1.2083 family)
- Maker's designation
- ~1.2083 / X40Cr14 / AISI ~420 / AFNOR Z40C14 (data sheet)
- Hardness
- As delivered ≤225HB (annealed)
- Main applications
- Injection, extrusion and blow molding dies, automotive lamps and camera lenses, glass-fiber-reinforced resins
- Features
- High homogeneity from ESR, with a good balance of hardness, toughness and corrosion resistance
- Source
- [68][69]
↺Old and new JIS designations (SK3 → SK105, etc.)
| Old designation | Current designation | Standard | Notes |
|---|---|---|---|
| SK3 | SK105 | JIS G 4401 Carbon tool steels (current edition JIS G 4401:2025) | SK3 is the old designation. The current designation is SK105 (the number is a guide to carbon content). The current edition of JIS G 4401 is the 2025 edition, revised on 22 December 2025 (replacing the 2023 edition) |
| SK1 | SK140 | JIS G 4401 Carbon tool steels (current edition JIS G 4401:2025) | Old SK1 → now SK140 |
| SK2 | SK120 | JIS G 4401 Carbon tool steels (current edition JIS G 4401:2025) | Old SK2 → now SK120 |
| SK4 | SK95 | JIS G 4401 Carbon tool steels (current edition JIS G 4401:2025) | Old SK4 → now SK95 |
| SK5 | SK85 | JIS G 4401 Carbon tool steels (current edition JIS G 4401:2025) | Old SK5 → now SK85 (common for springs, knives and strip steel) |
| SK6 | SK75 | JIS G 4401 Carbon tool steels (current edition JIS G 4401:2025) | Old SK6 → now SK75 |
| SK7 | SK65 | JIS G 4401 Carbon tool steels (current edition JIS G 4401:2025) | Old SK7 → now SK65 |
| SKT4 | SKT4 | JIS G 4404 Alloy tool steels (for hot-work dies) | No designation change found. Listed under JIS G 4404 hot-work in MISUMI's comparison table, corresponding to ISO 55NiCrMoV7, DIN 55NiCrMoV6, etc. Maker grades: DM (Proterial, JIS-similar SKT4), KTV (Nippon Koshuha, applicable JIS grade SKT4), GFA (Daido, SKT4 mod. / AISI L6 mod. / WNr. 1.2714 mod.) |
| SWCH10R | SWCH10R | JIS G 3507-2 Carbon steel for cold heading – Part 2: Wire (established 2005) | JIS G 3539:1991 was withdrawn and replaced upon establishment of JIS G 3507-2:2005 (JSA preview). The trailing R in the designation means rimmed steel (A = aluminum-killed steel, K = killed steel), and 10 is a guide to carbon content. The wire rod (raw material) is SWRCH10R of JIS G 3507-1. That SWCH10R is a G 3507-2 designation and what R means are confirmed in only one source, from TOHO International. Whether G 3507-2 has an edition newer than 2005 is unconfirmed (the wire rod side, G 3507-1, is latest in the 2021 edition) |
📚Source
Maker catalogs and technical documents come first. The nearest JIS is marked "Consistent across multiple sources" when two or more cross-reference tables from tool makers and distributors agree.
- Proterial"YSS steel grade search page (English): SLD" proterial.com
- Proterial"Tool steel technical information: Cold-work tool steel chemical composition" proterial.com
- Mitsubishi Materials (tool maker)"Aços para moldes e matrizes (maker-by-maker cross-reference of mold steels, Portuguese edition)" mitsubishicarbide.net
- MISUMI (parts maker)"Technical information: Press steel brand cross-reference table" jp.misumi-ec.com
- MISUMI (parts maker)"Technical information: Mold material comparison table" jp.misumi-ec.com
- Proterial"Tool steel technical information: Cold-work tool steel heat treatment conditions" proterial.com
- Proterial"YSS steel grade search page (English): SLD-MAGIC" proterial.com
- Proterial"Product page: High-performance cold-work die steel SLD-MAGIC" proterial.com
- Proterial"YSS steel grade search page (English): SLD10" proterial.com
- MISUMI (parts maker)"Comparison of die steel by manufacturers (Indonesian catalog page)" id.misumi-ec.com
- Proterial"YSS steel grade search page (English): SLD8" proterial.com
- Proterial"YSS steel grade search page (English): HI-PM 1 (HPM1)" proterial.com
- Proterial"Tool steel technical information: Plastic mold steels (types and example applications)" proterial.com
- Proterial"YSS steel grade search page (English): HI-PM 7 (HPM7)" proterial.com
- Proterial"YSS steel grade search page (English): HI-PM 38 (HPM38)" proterial.com
- Proterial"YSS steel grade search page (English): CENA 1" proterial.com
- Proterial"YSS steel grade search page (English): HI-PM 77 (HPM77)" proterial.com
- Proterial"YSS steel grade search page (English): HI-PM 31 (HPM31)" proterial.com
- Proterial"YSS steel grade search page (English): HI-PM MAGIC" proterial.com
- Proterial"YSS steel grade search page (English): PSL" proterial.com
- Proterial"Tool steel technical information: Hot-work tool steel features" proterial.com
- Proterial"Tool steel technical information: Hot-work tool steel chemical composition" proterial.com
- Proterial"Tool steel technical information: Hot-work tool steel standard heat treatment conditions" proterial.com
- Proterial"YSS steel grade search page (English): FDAC" proterial.com
- Proterial"YSS hot-work tool steel list (English)" proterial.com
- Proterial"YSS steel grade search page (English): DAC" proterial.com
- Proterial"YSS steel grade search page (English): DAC-MAGIC" proterial.com
- Proterial"Product page: Next-generation die casting die steel DAC-MAGIC" proterial.com
- Proterial"YSS steel grade search page (English): YXR33" proterial.com
- Proterial"YSS cold-work tool steel list (English)" proterial.com
- Proterial"YSS steel grade search page (English): YXM1" proterial.com
- Proterial"YSS steel grade search page (English): ARK1" proterial.com
- Proterial"YSS steel grade search page (English): SGT" proterial.com
- Proterial"YSS steel grade search page (English): YCS3" proterial.com
- Proterial"YSS steel grade search page (English): YAG" proterial.com
- Proterial"YSS steel grade search page (English): ZCD-M" proterial.com
- Daido Steel"Cold-work tool steel grade list" daido.co.jp
- Daido Steel"DC11 catalog (No.SC7915e)" daido.co.jp
- Daido Steel"DC53 Part 1: Basic properties" daido.co.jp
- MISUMI (parts maker)"Metal plates: features (FA catalog 2015)" jp.misumi-ec.com
- Daido Steel"PD613 catalog (No.SC8201d)" daido.co.jp
- Daido Steel"Plastic mold steel grade list" daido.co.jp
- Daido Steel"NAK55 / NAK80 catalog (No.SC8615e)" daido.co.jp
- Daido Steel"Plastic mold steels list (English)" daido.co.jp
- Daido Steel"Plastic mold steels: physical properties list No.SD2307 (2023.06)" daido.co.jp
- Daido Steel"PXA30 catalog (No.SC1001c)" daido.co.jp
- Daido Steel"Hot-work tool steel (die casting) grade list" daido.co.jp
- Daido Steel"DH2F catalog" daido.co.jp
- Daido Steel"DHA1 catalog (No.SC0010c)" daido.co.jp
- Daido Steel"GOA catalog (No.SC0090b)" daido.co.jp
- Daido Steel"S-STAR catalog (SC0603c)" daido.co.jp
- Daido Steel"Hot-work tool steel (hot pressing and forging) grade list" daido.co.jp
- Daido Steel"GFA catalog (No.SC0302c)" daido.co.jp
- Nippon Koshuha Steel"Product information: Cold-work tool steel" koshuha.co.jp
- MISUMI (parts maker)「Comparisons of Materials between JIS and Foreign Standards 2 / Steel Brand Comparative Table」 id.misumi-ec.com
- Nippon Koshuha Steel"Product information: Hot-work tool steel" koshuha.co.jp
- Nippon Koshuha Steel"Product information: Plastic mold steel" koshuha.co.jp
- Sanyo Special Steel"Tool Steel catalog (2017.12)" sanyo-steel.co.jp
- Sanyo Special Steel"Product introduction: Tool steel" sanyo-steel.co.jp
- Aichi Steel"Cold-work tool steel (product page)" aichi-steel.co.jp
- Uddeholm (voestalpine)「Uddeholm Stavax ESR technical datasheet (EN)」 uddeholm.com
- voestalpine High Performance Metals"Product page: Uddeholm Stavax ESR" voestalpine.com
- Uddeholm (voestalpine)「Uddeholm Nimax technical datasheet (EN)」 uddeholm.com
- voestalpine High Performance Metals"Product page: Uddeholm Nimax" voestalpine.com
- Uddeholm (voestalpine)「Uddeholm Elmax SuperClean technical datasheet (EN)」 uddeholm.com
- Sahamit Machinery (steel distributor in Thailand)"K110 (SKD11) product page" sahamit.co.th
- Böhler (voestalpine BÖHLER Edelstahl)「BÖHLER K110 datasheet (en_GB)」 bohler-edelstahl.com
- Böhler (voestalpine BÖHLER Edelstahl)「BÖHLER M310 ISOPLAST datasheet (en_GB)」 bohler-edelstahl.com
- voestalpine High Performance Metals"Product page: BÖHLER M310 ISOPLAST" voestalpine.com