ASTM B865
This specification covers nickel-copper-aluminum alloy (UNS N05500) in the form of rounds, squares, hexagons, or rectangles, and forgings and forging stock, manufactured either by hot working or cold working, and cold-worked wire.
Chemical Properties
| Element | Composition Limits, % |
Product (check) analysis variations, under min or over max, of the specified limit of element, % |
|---|---|---|
| NickelA | 63.0 min | 0.45 |
| Aluminum | 2.30 - 3.15 | 0.20 |
| Carbon | 0.18 max | 0.01 |
| Iron | 2.0 max | 0.05 |
| Manganese | 1.5 max | 0.04 |
| Silicon | 0.50 max | 0.03 |
| Titanium | 0.35 - 0.85 | 0.03 min 0.04 max |
| Sulfur | 0.010 max | 0.003 |
| Copper | 27.0 - 33.0 |
0.15 0.20 max |
Mechanical Properties
| Form | Condition | Hardness | |
|---|---|---|---|
| Brinell 3000 kg, max | Rockwell, max | ||
| RoundsB, hexagons, squares, rectangles, forgings | Hot Worked | 245 | C23 |
| Hexagons | Cold Worked | 260 | C26 |
| Rounds 1/4 (6.4 mm) to 1 in. (25.4 mm), incl | 280 | C29 | |
| Rounds Over 1 (25.4 mm) to 3 in. (76.2 mm), incl | 260 | C26 | |
| Rounds Over 3 (76.2 mm) to 4 in. (101.6 mm), incl | 240 | C22 | |
| Rounds hexagons, squares, rectangles, forgings | Hot-worked or coldworked and annealed | 185 | B90 |
