Alliage X
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We propose this metal in forged pieces : rings, blocks, rolls etc… (rough or machined).
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| Carlier designation | NC22FeD |
| UNS designation | N06002 |
| European numbering designation | 2.4665 |
| AFNOR designation | NiCr22Fe18Mo |
| British Standard designation | HR6 + HR204 |
| Thyssen Krupp VDM designation | Nicrofer 4722Co |
| Aubert & Duval designation | Pyrad 49D |
| Applicable standards | | ASTM B435 | Plates | | ASTM B572 | Bars |
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Chemical composition
| en % | Ni | Fe | Cr | Si | P | Mn | C | S | Co | Mo | W | | min | - | 17,000 | 20,500 | - | - | - | 0,050 | - | 0,500 | 8,000 | 0,200 | | max | Solde | 20,000 | 23,000 | 1,000 | 0,040 | 1,000 | 0,150 | 0,030 | 2,500 | 10,000 | 1,000 |
Density : 8.22
Guarantee mechanical results in MPa
| Standard | Rm | Rp
0.2% | A % | Z | HB | Hrc | Comments | | ASTM B572 - 97 | 660 | 240 | 35 | - | - | - | All diameters |
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
Very good resistance to oxidation until the temperature of 1200°C, and to the stress corrosion. Good aptitude for transformation and for welding. Excellent resistance to creeping until the temperature 1000°C.
Main applications
Combustion chamber and anti-radiating structures in aeronautic turbines, industrial oven components, radiant tubes gas/gas. Heat exchangers in high temperature nuclear reactors. Pigtails in refinery ovens.
Heat treatment
Please, contact us
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