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UNS N06002
ISO S (heat-resistant alloys & titanium)Solid-solution-strengthened nickel-base heat-resistant alloy (Ni-Cr-Fe-Mo). Number: UNS N06002. Standard: Composition and products are specified by ASTM B435 (plate and strip), ASTM B572 (rod and bar), AMS 5536 (plate and strip), AMS 5754 (bar and forgings), etc..
🌐JIS and international equivalents
“Close” means composition or properties are not exactly the same. Before substituting, check the values in each standard.
| System | Designation | Number | Relation | Confidence |
|---|---|---|---|---|
| UNS | UNS N06002 | UNS N06002 | — | |
| JIS | NW6002 | JIS G 4902 (Corrosion-resisting and heat-resisting superalloy, nickel and nickel alloy - Plates, sheets and strips) | equivalent | One source / reference[3] |
| EN | NiCr22Fe18Mo | 2.4665 | equivalent | Agrees in 2+ sources[1][2] |
| GB | — | — | Not confirmed |
Differences between the equivalents (from the sources)
- JIS NW6002: The Nippon Yakin Kogyo catalog matches NASHX to JIS G 4902 NW6002, ASTM B435 UNS N06002 and AMS 5536, and its composition table lists both NW6002 and UNS N06002. The only difference is that NW6002 has a B ≤0.010 requirement. That JIS G 4902:2019 merged the former JIS H 4551 was seen in JSA material search results, but the JSA site could not be reached during the survey, so this was not confirmed in the standard text. The JIS standard for bar has not been confirmed
- EN NiCr22Fe18Mo: Haynes (DIN 17742 No. 2.4665, NiCr22Fe18Mo) and Special Metals (W.Nr 2.4665, DIN NiCr22Fe18Mo) agree. The EN composition range has not been checked
- GB : A corresponding Chinese grade (information suggests GH3536) could not be confirmed in primary sources
📄Related specifications (AMS, ASTM etc.)
Specifications called up on purchase orders and drawings. AMS are SAE aerospace material specifications, split by product form (bar, plate, forging), melting practice and heat treatment. Standard texts are paid, so only titles and scopes checked on the publishers’ public pages are shown.
| Spec | Scope | Confidence |
|---|---|---|
| AMS 5536R | Nickel Alloy, Corrosion- and Heat-Resistant, Sheet, Strip, and Plate 47.5Ni - 22Cr - 1.5Co - 9.0Mo - 0.60W - 18.5Fe (Alloy X or HX) Solution Heat TreatedPlate, strip and sheet. Solution treated (revised 2024-03-22) | Agrees in 2+ sources[9][1] |
| AMS 5754P | Nickel Alloy, Corrosion- and Heat-Resistant, Bars, Forgings, Rings, and Forging, Ring, and Heading Stock 47.5Ni - 22Cr - 1.5Co - 9.0Mo - 0.60W - 18.5Fe (Alloy X) Solution Heat TreatedBar, forgings, flash-welded rings and forging stock. Solution treated (revised 2024-09-03) | Agrees in 2+ sources[10][1] |
| ASTM B435-22 | Standard Specification for Heat and Corrosion Resistant High Temperature Alloy Plate, Sheet, and StripRolled plate, sheet and strip. Covers UNS N06002, N06230, N12160 and R30556 (stated in the astm.org abstract) | Agrees in 2+ sources[11][1] |
| ASTM B572-24 | Standard Specification for Heat and Corrosion Resistant High Temperature Alloy Bar or RodBar. Covers UNS N06002, N06230, N12160 and R30556 (stated in the astm.org abstract) | Agrees in 2+ sources[12][1] |
All ASTM standards on Kezuriba: ASTM standards quick reference.
✈Main aerospace uses (as stated in the sources)
⚗Chemical composition (mass %)
Ranges differ between specifications, so each one has its own column (dark figures agree in several sources, light figures come from one source).
| Element | Spec ① | Spec ② | Spec ③ | Spec ④ |
|---|---|---|---|---|
| C | 0.05 – 0.15[2][6][3] | — | — | — |
| Cr | — | 20.5 – 23.0[2][6][3] | — | — |
| Fe | — | 17 – 20[2][6][3] | — | — |
| Mo | — | 8 – 10[2][6][3] | — | — |
| Co | — | 0.5 – 2.5[2][6][3] | — | — |
| W | — | 0.2 – 1.0[2][6][3] | — | — |
| Mn | — | ≤ 1[2][6][3] | — | — |
| Si | — | ≤ 1[2][6][3] | — | — |
| P | — | ≤ 0.04[2][6][3] | — | — |
| S | — | ≤ 0.03[2][6][3] | — | — |
| B | — | — | ≤ 0.01[3] | ≤ 0.01[3] |
| Al | — | — | — | ≤ 0.5[3] |
| Ti | — | — | — | ≤ 0.15[3] |
| Cu | — | — | — | ≤ 0.5[3] |
- Spec ① Composition range of UNS N06002 (Special Metals' Limiting Chemical Composition, Carpenter's Type Analysis and Nippon Yakin Kogyo's "Specification (UNS N06002)" agree)
- Spec ② UNS N06002 (the same three sources)
- Spec ③ JIS G 4902 NW6002 (Nippon Yakin Kogyo table; there is no B requirement in the UNS N06002 row)
- Spec ④ AMS 5536M (Nippon Yakin Kogyo table; the current edition is AMS 5536R, and R's values have not been confirmed)
⚖Density
8.22 g/cm³
Haynes gives 8.22 (22°C). Special Metals gives 8.2 and Nippon Yakin Kogyo 8.20, which are rounded values and do not contradict
Calculate weight in UNS N06002 →💪Mechanical properties
“Reference” values are not specified minimums from the standard but figures published by makers and others.
| Condition | Tensile MPa | Yield MPa | Elong. % | Hardness | Type of value |
|---|---|---|---|---|---|
| Plate and strip (UNS N06002; in the Nippon Yakin Kogyo table, the ASTM B435 column) | ≥ 655 | ≥ 240 | ≥ 35 | — | Specified value (UNS N06002; from the Nippon Yakin Kogyo NASHX catalog) One source / reference[3] |
| Plate and strip (JIS G 4902 NW6002) | ≥ 660 | ≥ 245 | ≥ 35 | — | Specified value (JIS; from the Nippon Yakin Kogyo NASHX catalog) One source / reference[3] |
| Plate and strip (AMS 5536M, solution treated) | ≥ 724 | ≥ 310 | ≥ 35 | — | Specified value (AMS 5536M; from the Nippon Yakin Kogyo NASHX catalog; values for the current AMS 5536R have not been confirmed) One source / reference[3] |
| Sheet, solution treated at 1177°C and rapidly cooled, room temperature | 783 | 376 | 46.5 | HRBW 86 | Typical value (Haynes International) One source / reference[1][7] |
| Plate, solution treated at 1177°C and rapidly cooled, room temperature | 760 | 340 | 48.9 | HRBW 87 (bar is HRBW 88) | Typical value (Haynes International) One source / reference[1][7] |
| Cold-rolled sheet, heat treated at 1175°C and rapidly cooled (air cooled), room temperature | 793 | 345 | 45.5 | HRB 90 | Typical value (Special Metals; values for one typical heat) One source / reference[2] |
| Hot-rolled plate 6 mm (solution treated), room temperature | 772 | 388 | 40 | HBW 204 | Measured example (Nippon Yakin Kogyo NASHX) One source / reference[3] |
| Cold-rolled sheet 1.2 mm (solution treated), room temperature | 777 | 369 | 45 | HV 183 | Measured example (Nippon Yakin Kogyo NASHX) One source / reference[3] |
1 MPa ≈ 145 psi (0.145 ksi). Hardness conversion · unit converter
🔧Machinability notes (as stated in the sources)
- Special Metals recommends machining in the annealed condition with carbide or high-speed steel tools and plenty of sulfur-free cutting fluid. Tools and machines should be as rigid as possible to limit deflection and vibration. Cutting speeds and feeds are about the same as for NIMONIC alloy 75[2]
- Haynes' machining and welding brochure gives, as a general guide for nickel-base and iron-base corrosion- and high-temperature-resistant alloys, turning with carbide tools (C-2/C-3 grades) at 30–50 sfm (about 9–15 m/min) for rough cuts with strong interruption, 90 sfm (about 27 m/min) for normal roughing, and 95–110 sfm (about 29–34 m/min) for finishing[8]
- Nippon Yakin Kogyo states that machining forces required are greater than for ordinary austenitic stainless steels (a statement about plastic working)[3]
- Sandvik Coromant says that ISO S heat-resistant superalloys are tough and prone to built-up edge, work-harden, have poor thermal conductivity so temperatures run high, and show notch wear at the maximum depth of cut position[4]
📚Sources
Primary sources (public documents from makers, industry associations and standards bodies), numbered where each value is cited. Many are in Japanese.
- haynesintl.com https://haynesintl.com/wp-content/uploads/2024/08/x-brochure.pdf
- specialmetals.com https://www.specialmetals.com/documents/technical-bulletins/inconel/inconel-alloy-hx.pdf
- nyk.co.jp https://www.nyk.co.jp/en/pdf/products/NAS_HX_E.pdf
- sandvik.coromant.com https://www.sandvik.coromant.com/en-us/knowledge/materials/workpiece-materials
- kyocera.co.jp https://www.kyocera.co.jp/prdct/tool/wp-content/uploads/2014/07/2024-2026_A.pdf
- carpentertechnology.com https://www.carpentertechnology.com/alloy-finder/pyromet-680
- haynesintl.com https://haynesintl.com/en/datasheet/hastelloy-x-alloy/
- haynesintl.com https://haynesintl.com/wp-content/uploads/2024/08/Fabrication-and-Welding-Brochure.pdf
- saemobilus.sae.org https://saemobilus.sae.org/content/AMS5536R
- saemobilus.sae.org https://saemobilus.sae.org/content/AMS5754P
- store.astm.org https://store.astm.org/b0435-22.html
- store.astm.org https://store.astm.org/b0572-24.html
Other materials
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