Printed from Kezuriba (kezuriba.net/en/materials/a2219/)
A2219
ISO N (non-ferrous)Aluminum alloy (heat-treatable Al-Cu-Mn, 2000 series, for welded structures and low-temperature use). Standard: Which JIS product standards list it (H 4000 sheet/plate, H 4040 bar, H 4140 forgings, etc.) is not confirmed in primary sources.
🌐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 | A2219 | Which JIS product standards list it (H 4000 sheet/plate, H 4040 bar, H 4140 forgings, etc.) is not confirmed in primary sources | — | |
| AA | 2219 | UNS A92219 | identical (internationally registered alloy) | Agrees in 2+ sources[6][12][13][14] |
| EN | EN AW-2219ISO chemical symbol AlCu6Mn | EN AW-2219 | identical (internationally registered alloy) | One source / reference[15][16] |
| GB | — | — | Not confirmed |
Differences between the equivalents (from the sources)
- EN EN AW-2219: Based on the ISO chemical symbol in AA Teal Sheets and the Japan Aluminium Association's explanation that "alloys with the same four digits have the same composition in JIS and EN". The aerospace EN standards include EN 4209 (AL-P2219-T851 plate), confirmed on a BSI sales page; the standard text itself was not checked
- GB : The corresponding GB designation 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-QQ-A-250/30A | Aluminum Alloy 2219, Plate and Sheet2219 sheet and plate (general requirements in AMS-QQ-A-250). Issued 1997, reaffirmed 2010, Stabilized 2013-12-12. Derived from federal specification QQ-A-250/30 | Agrees in 2+ sources[18][19] |
| AMS 4295D | Aluminum Alloy, Sheet and Plate 6.3Cu - 0.30Mn - 0.06Ti - 0.10V - 0.18Zr (2219 - O, F, T31, T351, T37, T81, T851, T87)Sheet and plate (O, F, T31, T351, T37, T81, T851, T87). Stabilized 2013-09-17 | Agrees in 2+ sources[20][19] |
| AMS 4031K | ALUMINUM ALLOY SHEET AND PLATE 6.3Cu - 0.30Mn - 0.18Zr - 0.10V - 0.06Ti (2219-O) - ANNEALED OR SPECIFIED FABRICATED (2219-F)Sheet and plate (O: annealed, F: as fabricated). Revised 2022-08-17 | Agrees in 2+ sources[21][19] |
| AMS 4143G | Aluminum Alloy Forgings and Rolled or Forged Rings 6.3Cu - 0.30Mn - 0.18Zr - 0.10V - 0.06Ti (2219-T6) Solution and Precipitation Heat TreatedDie forgings and open-die forgings (thickness 102 mm or less), rings (wall thickness 63.5 mm or less), T6. Revised 2025-03-25 | One source / reference[22] |
| AMS 4162G | Aluminum Alloy, Extrusions, 6.3Cu - 0.30Mn - 0.18Zr - 0.10V - 0.06Ti (2219-T8511), Solution Treated, Stress Relief Stretched, Straightened, and Precipitation Heat TreatedExtruded bar, rod, shapes and tube (T8511), diameter or minimum thickness up to 2.999 in, cross-sectional area up to 25 in². Revised 2025-04-14 | One source / reference[23] |
| 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 A92219 and Alclad 2219. The 1972 NASA document also cites B209 as the standard for 2219 sheet and plate | Agrees in 2+ sources[24][14][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 rod. A92219 is in the alloy list on the overview page, with tempers including T851 | One source / reference[12] |
| ASTM B247-25 | Standard Specification for Aluminum and Aluminum-Alloy Die Forgings, Hand Forgings, and Rolled Ring ForgingsDie forgings, open-die forgings and ring forgings. A92219 is in the alloy list on the overview page, with tempers including T6 and T852 | One source / reference[13] |
All ASTM standards on Kezuriba: ASTM standards quick reference.
✈Main aerospace uses (as stated in the sources)
- External tank of the Space Shuttle (the early standard-weight tank was made of 2219; later replaced with the Al-Li alloy 2195)[26]
- Fuel and oxidizer tanks for large boosters, missiles, spacecraft, ground support equipment and aircraft engine parts (NASA; the references include the manufacture of the Saturn V S-IC stage)[27][17]
- Engine nacelle and pylon (sheet)[19]
- Engine air inlet lip skin (sheet)[19]
- Cryogenic tanks and aerospace equipment (Japan Aluminium Association alloy table)[1]
⚗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 | ≤ 0.2 | Agrees in 2+ sources[6][7] |
| Fe | ≤ 0.3 | Agrees in 2+ sources[6][7] |
| Cu | 5.8 – 6.8 | Agrees in 2+ sources[6][7] |
| Mn | 0.2 – 0.4 | Agrees in 2+ sources[6][7] |
| Mg | ≤ 0.02 | Agrees in 2+ sources[6][7] |
| Zn | ≤ 0.1 | Agrees in 2+ sources[6][7] |
| Ti | 0.02 – 0.10 | Agrees in 2+ sources[6][7] |
| V | 0.05 – 0.15 | Agrees in 2+ sources[6][7] |
| Zr | 0.10 – 0.25 | Agrees in 2+ sources[6][7] |
| Others (each / total) | ≤ 0.05 / 0.15 | Agrees in 2+ sources[6][7] |
| Al | Balance | Agrees in 2+ sources[6][7] |
⚖Density
2.84 g/cm³
AA Teal Sheets calculated value 2.84 and NASA handbook 2.84 g/cm³ agree
Calculate weight in A2219 →💪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 |
|---|---|---|---|---|---|
| JIS specified value (all tempers) | — | — | — | — | JIS specified value Not confirmed |
| T851 (plate, thickness 0.250-1.000 in = 6.35-25.4 mm) | ≥ 427 (62ksi) | ≥ 317 (46ksi) | ≥ 8 | — | Specified value (standard value from the 1969-70 edition of AA "Aluminum Standards and Data", cited in Table 7.161 of the 1972 NASA Materials Data Handbook. Whether it is the same as current ASTM B209 and AMS is not confirmed) One source / reference[8] |
| T87 (sheet and plate, thickness 0.250-1.000 in) | ≥ 441 (64ksi) | ≥ 352 (51ksi) | ≥ 7 | — | Specified value (same as above; 1969-70 AA edition) One source / reference[8] |
| T62 (sheet and plate, thickness 0.250-1.000 in) | ≥ 372 (54ksi) | ≥ 248 (36ksi) | ≥ 8 | — | Specified value (same as above; 1969-70 AA edition. T62 is a temper heat treated by the user) One source / reference[8] |
| O (sheet and plate, thickness 0.020-2.000 in) | ≤ 221 (32ksi) | ≤ 110 (16ksi) | ≥ 12 | — | Specified value (same as above; 1969-70 AA edition) One source / reference[8] |
| T81/T851 (typical value for sheet and plate, L and T directions) | 455 (66ksi) | 345 (50ksi) | 10 | HB 123 | Reference value (typical value; Table 7.4114 of the 1972 NASA Materials Data Handbook) One source / reference[9] |
| T87 (typical value for sheet and plate, L and T directions) | 469 (68ksi) | 386 (56ksi) | 10 | HB 128 | Reference value (typical value; same as above) One source / reference[9] |
| T62 (typical value for sheet and plate) | 386 (56ksi, L) / 400 (58ksi, T) | 276 (40ksi) | 10 | HB 113 | Reference value (typical value; same as above) One source / reference[9] |
| T31/T351 (typical value for sheet and plate) | 359 (52ksi) | 248 (36ksi, L) / 234 (34ksi, T) | 20 (L) / 16 (T) | HB 96 | Reference value (typical value; same as above) One source / reference[9] |
| T37 (typical value for sheet and plate) | 386 (56ksi) | 310 (45ksi, L) / 303 (44ksi, T) | 12 (L) / 10 (T) | HB 110 | Reference value (typical value; same as above) One source / reference[9] |
| O (typical value for sheet and plate) | 172 (25ksi) | 76 (11ksi) | 18 | — | Reference value (typical value; Table 7.4114 and the opening summary of the 1972 NASA Materials Data Handbook) One source / reference[9][10] |
1 MPa ≈ 145 psi (0.145 ksi). Hardness conversion · unit converter
🔧Machinability notes (as stated in the sources)
- NASA: machinability is good in the annealed (O) condition. Because most actual machining is done after heat treatment, turning tools should have a larger rake angle (e.g. side rake 10-20°). Water-soluble cutting fluid, kerosene, or a mixture of kerosene and lard oil is used[17]
- NASA: fuel and oxidizer tanks for large boosters are lightened by chemical milling or electrochemical machining that removes material while leaving stiffening ribs (chemical milling test results for 2219 are available)[17]
📚Sources
Primary sources (public documents from makers, industry associations and standards bodies), numbered where each value is cited. Many are in Japanese.
- aluminum.or.jp https://www.aluminum.or.jp/wp-content/themes/dp-colors/img/AboutAluminum.pdf#page=35
- 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#page=11
- ntrs.nasa.gov https://ntrs.nasa.gov/api/citations/19720022811/downloads/19720022811.pdf#page=17
- ntrs.nasa.gov https://ntrs.nasa.gov/api/citations/19720022811/downloads/19720022811.pdf#page=49
- ntrs.nasa.gov https://ntrs.nasa.gov/api/citations/19720022811/downloads/19720022811.pdf#page=57
- ntrs.nasa.gov https://ntrs.nasa.gov/api/citations/19720022811/downloads/19720022811.pdf#page=6
- aluminum.org https://www.aluminum.org/sites/default/files/2021-11/TealSheet.pdf#page=28
- 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/b0209m-14.html
- aluminum.org https://www.aluminum.org/sites/default/files/2021-11/TealSheet.pdf#page=38
- aluminum.or.jp https://www.aluminum.or.jp/wp-content/themes/dp-colors/img/AboutAluminum.pdf#page=20
- ntrs.nasa.gov https://ntrs.nasa.gov/api/citations/19720022811/downloads/19720022811.pdf#page=30
- saemobilus.sae.org https://saemobilus.sae.org/content/AMSQQA250/30A
- 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/AMS4295D
- saemobilus.sae.org https://saemobilus.sae.org/content/AMS4031
- saemobilus.sae.org https://saemobilus.sae.org/content/AMS4143G
- saemobilus.sae.org https://saemobilus.sae.org/content/AMS4162G
- store.astm.org https://store.astm.org/b0209_b0209m-21a.html
- ntrs.nasa.gov https://ntrs.nasa.gov/api/citations/19720022811/downloads/19720022811.pdf#page=14
- nasa.gov https://www.nasa.gov/sites/default/files/113020main_shuttle_lightweight.pdf
- ntrs.nasa.gov https://ntrs.nasa.gov/api/citations/19720022811/downloads/19720022811.pdf#page=11
Other materials
Aerospace aluminum