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A7075
ISO N (non-ferrous)Aluminum alloy (heat-treatable Al-Zn-Mg-Cu, 7000 series, extra super duralumin). Standard: JIS H 4000 (sheet) / JIS H 4040 (bar) / JIS H 4100 (extruded shapes).
🌐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 |
|---|---|---|---|---|
| JIS | A7075 | JIS H 4000 (sheet) / JIS H 4040 (bar) / JIS H 4100 (extruded shapes) | — | |
| AA | 7075 | UNS A97075 | identical (internationally registered alloy) | Agrees in 2+ sources[6][13][2] |
| EN | EN AW-7075ISO chemical symbol AlZn5.5MgCu, former DIN AlZnMgCu1.5 | EN AW-7075 | identical (internationally registered alloy) | Agrees in 2+ sources[12][14][15][6] |
| GB | — | — | Not confirmed |
📄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-QQ-A-250/12A | Aluminum Alloy 7075, Plate and SheetSheet and plate of 7075 (general requirements are in AMS-QQ-A-250). Stabilized 2013-12-12. Derived from Federal Specification QQ-A-250/12 | Agrees in 2+ sources[18][19] |
| AMS 4045N | Aluminum Alloy Sheet and Plate, 5.6Zn - 2.5Mg - 1.6Cu - 0.23Cr, 7075: (-T6 Sheet, -T651 Plate), Solution and Precipitation Heat TreatedSheet (T6) and plate (T651), thickness 0.20–101.6mm. Revised 2026-09-21 | Agrees in 2+ sources[20][19] |
| AMS 4078L | Aluminum Alloy Sheet and Plate, 5.6Zn - 2.5Mg - 1.6Cu - 0.23Cr, 7075: (-T73 Sheet, -T7351 Plate), Solution Heat Treated and OveragedSheet (T73) and plate (T7351), thickness over 0.991mm to 101.60mm. A temper that improves stress corrosion cracking resistance by overaging. Revised 2023-11-10 | Agrees in 2+ sources[21][19] |
| AMS 4123L | Aluminum Alloy, Rolled or Cold Finished Bars and Rods, (7075-T651), Solution and Precipitation Heat TreatedRolled and cold-finished bar (T651). Revised 2024-03-04 | One source / reference[22] |
| AMS 4154S | Aluminum Alloy, Extrusions 5.6Zn - 2.5Mg - 1.6Cu - 0.23Cr (7075-T6, 7075-T6510, 7075-T6511) Solution Heat Treated, Stress Relieved by Stretching when Required and Precipitation Heat TreatedExtruded bar, wire, profiles and tube (T6, T6510, T6511). Revised 2023-11-10 | One source / reference[23] |
| AMS 4126E | Aluminum Alloy, Die and Hand Forgings and Rolled Rings, 5.6Zn - 2.5Mg - 1.6Cu - 0.23Cr (7075-T6), Solution and Precipitation Heat TreatedDie forgings (up to 102mm), hand forgings (up to 152mm) and rolled ring forgings (wall thickness up to 89mm), T6. Revised 2025-04-14 | One source / reference[24] |
| AMS-QQ-A-225/9A | Aluminum Alloy 7075, Bar, Rod, Wire, and Special Shapes; Rolled, Drawn, or Cold FinishedRolled, drawn and cold-finished bar, wire and shapes. Reaffirmed 2014-07-25 (derived from Federal Specification QQ-A-225/9) | One source / reference[25] |
| ASTM B211/B211M-23 | Standard Specification for Aluminum and Aluminum-Alloy Rolled or Cold Finished Bar, Rod, and WireRolled and cold-finished bar and wire. The overview page's alloy list includes A97075, with tempers including T6, T651, T73 and T7351 | One source / reference[26] |
| ASTM B247-25 | Standard Specification for Aluminum and Aluminum-Alloy Die Forgings, Hand Forgings, and Rolled Ring ForgingsDie forgings, hand forgings and ring forgings. The overview page's alloy list includes A97075, with tempers including T6, T73 and T7352 | One source / reference[27] |
| ASTM B209/B209M-21a | Standard Specification for Aluminum and Aluminum-Alloy Sheet and PlateSheet and plate. The overview page of the former metric edition B209M-14 (withdrawn in 2021 and merged into B209/B209M) lists A97075, Alclad 7075 and Alclad 1-Side 7075 | One source / reference[28][13] |
All ASTM standards on Kezuriba: ASTM standards quick reference.
✈Main aerospace uses (as stated in the sources)
- Fuselage skin (sheet; a representative Novelis alloy for aircraft sheet)[29]
- Aircraft (the applications column of the Japan Aluminium Association alloy table reads "aircraft, ski poles")[30]
- Aircraft structures (NASA: applications are aircraft structures, piping, mobile equipment and high-pressure hydraulic parts)[31]
⚗Chemical composition (mass %)
As specified in Composition of AA internationally registered alloy (Japan Aluminium Association: alloys with the same four digits as a JIS alloy have identical chemical composition)
| Element | Range | Confidence |
|---|---|---|
| Si | ≤ 0.4 | Agrees in 2+ sources[6][7] |
| Fe | ≤ 0.5 | Agrees in 2+ sources[6][7] |
| Cu | 1.2 – 2.0 | Agrees in 2+ sources[6][7] |
| Mn | ≤ 0.3 | Agrees in 2+ sources[6][7] |
| Mg | 2.1 – 2.9 | Agrees in 2+ sources[6][7] |
| Cr | 0.18 – 0.28 | Agrees in 2+ sources[6][7] |
| Zn | 5.1 – 6.1 | Agrees in 2+ sources[6][7] |
| Ti | ≤ 0.2 | Agrees in 2+ sources[6][7] |
| Zr+Ti | ≤ 0.25 | One source / reference[6] |
| Others (each / total) | ≤ 0.05 / 0.15 | Agrees in 2+ sources[6][7] |
| Al | Balance | One source / reference[6] |
⚖Density
2.8 g/cm³
Agrees in 2+ sources[10][11][12][7]
UACJ, GLEICH and thyssenkrupp give 2.80, the Japan Aluminium Association gives a specific gravity of 2.8, and AA Teal Sheets gives a calculated value of 2.81
Calculate weight in A7075 →💪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 |
|---|---|---|---|---|---|
| T6/T62/T6510/T6511 (bar, diameter 6 or less) | ≥ 540 | ≥ 480 | ≥ 7 | — | JIS specified value (the "corrected" version in the JIS H 4040:2006 corrigendum) One source / reference[1] |
| T6/T62/T6510/T6511 (bar, diameter over 6 to 75) | ≥ 560 | ≥ 500 | ≥ 7 (other elongation column >=6) | — | JIS specified value (same as above) One source / reference[1] |
| T6/T62/T6510/T6511 (bar, diameter over 75 to 110 / over 110 to 130 / over 130 to 150) | ≥ 560 / >=540 / >=500 | ≥ 490 / >=470 / >=440 | ≥ 7, >=5 / >=6, >=5 / —, >=5 | — | JIS specified value (same as above. Some rows have conditions on cross-sectional area) One source / reference[1] |
| O (bar) | ≤ 275 | ≤ 165 | ≥ 10 (>=9) | — | JIS specified value (same as above) One source / reference[1] |
| T6 (sheet) JIS specified value | — | — | — | — | JIS specified value Not confirmed |
| T6 (extrusion, 1 mm thickness) | 590 | 540 | 14 | — | Reference value (UACJ typical value) One source / reference[8] |
| T6/T651 (AA typical value) | 572 (83ksi) | 503 (73ksi) | 11 | HB 150 | Reference value (AA typical value, as published in thyssenkrupp Materials North America literature) One source / reference[9] |
1 MPa ≈ 145 psi (0.145 ksi). Hardness conversion · unit converter
🔧Machinability notes (as stated in the sources)
- AA comparative rating (A–E): T6/T651 = B (Good)[16]
- GLEICH (German aluminum plate manufacturer) rates the machinability of T651 rolled plate as "very good" (the best of 6 grades) and also says it polishes well[12]
- UACJ describes quenched 7000 series plate as "having strength comparable to steel and used for products requiring high machinability"[17]
📚Sources
Primary sources (public documents from makers, industry associations and standards bodies), numbered where each value is cited. Many are in Japanese.
- webdesk.jsa.or.jp https://webdesk.jsa.or.jp/pdf/errata/jis_h_04040_000_000_2006_cor_1_200608_j_ch.pdf
- uacj.co.jp https://www.uacj.co.jp/products/sheeting/01shurui.html
- 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
- sumitool.com https://www.sumitool.com/downloads/cutting-tools/general-catalog/assets/pdf/a.pdf
- aluminum.org https://www.aluminum.org/sites/default/files/2021-11/TealSheet.pdf
- ucpcdn.thyssenkrupp.com https://ucpcdn.thyssenkrupp.com/_legacy/UCPthyssenkruppBAMXUK/assets.files/material-data-s…
- uacj.co.jp https://www.uacj.co.jp/products/extrusion/extrusion.html
- ucpcdn.thyssenkrupp.com https://ucpcdn.thyssenkrupp.com/_legacy/UCPthyssenkruppBAMXNA/assets.files/tkmna_com/cbs/n…
- uacj.co.jp https://www.uacj.co.jp/products/extrusion/pdf/seihin_ext_04hanyou01.pdf#page=2
- aluminum.or.jp https://www.aluminum.or.jp/wp-content/themes/dp-colors/img/AboutAluminum.pdf#page=7
- gleich.de https://gleich.de/wp-content/uploads/2021/03/en_en_aw_7075-02-19.pdf
- store.astm.org https://store.astm.org/b0209m-14.html
- ucpcdn.thyssenkrupp.com https://ucpcdn.thyssenkrupp.com/_legacy/UCPthyssenkruppBAMXJacobBek/assets.files/pdf/produ…
- aluminum.or.jp https://www.aluminum.or.jp/wp-content/themes/dp-colors/img/AboutAluminum.pdf#page=20
- ucpcdn.thyssenkrupp.com https://ucpcdn.thyssenkrupp.com/_legacy/UCPthyssenkruppBAMXNA/assets.files/tkmna_com/cbs/n…
- uacj.co.jp https://www.uacj.co.jp/products/sheeting/aas-fp52.html
- saemobilus.sae.org https://saemobilus.sae.org/content/AMSQQA250/12A
- novelis.com https://novelis.com/wp-content/uploads/2026/03/Novelis-Aerospace-Brochure-2025-March-EN-WE…
- saemobilus.sae.org https://saemobilus.sae.org/content/AMS4045N
- saemobilus.sae.org https://saemobilus.sae.org/content/AMS4078L
- saemobilus.sae.org https://saemobilus.sae.org/content/AMS4123L
- saemobilus.sae.org https://saemobilus.sae.org/content/AMS4154S
- saemobilus.sae.org https://saemobilus.sae.org/content/AMS4126E
- saemobilus.sae.org https://saemobilus.sae.org/content/AMSQQA225/9
- store.astm.org https://store.astm.org/b0211_b0211m-23.html
- store.astm.org https://store.astm.org/b0247-25.html
- store.astm.org https://store.astm.org/b0209_b0209m-21a.html
- novelis.com https://novelis.com/wp-content/uploads/2026/03/Novelis-Aerospace-Brochure-2025-March-EN-WE…
- aluminum.or.jp https://www.aluminum.or.jp/wp-content/themes/dp-colors/img/AboutAluminum.pdf#page=36
- ntrs.nasa.gov https://ntrs.nasa.gov/api/citations/19720022809/downloads/19720022809.pdf#page=10
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