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We have not this metal on permanent stock. But we can supply it with a longer delivery time, in any needed shape.
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| Carlier designation | NCK20TA |
| UNS designation | N07090 |
| European numbering designation | 2.4632 |
| AFNOR designation | NiCr20Co18TiAl |
| British Standard designation | HR2 |
| Aubert & Duval designation | PER 2U |
| Applicable standards | | AIR 9165 | Bars + Forged pieces | | AMS5829 | |
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Chemical composition
| en % | Cr | Ti | Al | Co | Fe | Mn | S | Si | C | Cu | B | P | | min | 18,000 | 2,000 | 1,000 | 15,000 | - | - | - | - | - | - | - | - | | max | 21,000 | 3,000 | 2,000 | 21,000 | 1,000 | 1,000 | 0,015 | 1,000 | 0,130 | 0,200 | 0,020 | 0,015 |
Density : 8.18
Guarantee mechanical results in MPa
| Standard | Rm | Rp
0.2% | A % | Z | HB | Hrc | Comments | | AIR 9165 | >1080 | >690 | >20 | - | >290 | - | Forged pieces, solution and aged. |
Forging conditions
Forging is made at a range of temperature included between 1150 and 950°C, then cooled at appropriate conditions for the final thermal treatment and obtain required characteristics. In any case, please contact us.
Properties / Main use conditions
Precipitation hardening treatment alloy, near alloy 80A, but with better values to creeping, to be used until 920°C.
Main applications
Gas turbine components, blades and rings, springs, flame tubes.
Heat treatment
Solution : 1040°C / 1 hour / Air cool.
Ageing : 1080°C / 8 hours / Air + 700°C / 16 hours / Air.
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