Description
Incoloy 908
INCOLOY® alloy 908 (UNS N09908) is an age-hard enable nickel-iron alloy which exhibits a low coefficient of thermal expansion, high tensile strength,high fracture and impact toughness, fatigue crack growth resistance, good ductility, metallurgical stability and weldability plus sufficient resistance to stress accelerated grain boundary oxygen embrittlement (SAGBO) to permit hot fabrication without cracking.
%Chemical Composition
| Si | Cu | C | Mn | Cr | Ni | Fe |
| (max) 0.5 | (max) 0.5 | (max) 0.03 | (max) 1 | 4.5 – 3.75 | 51 – 47 | Balance |
| Co | B | P | Nb | Ti | Al | S |
| (max) 0.5 | (max) 0.012 | (max) 0.015 | 3.3 – 2.7 | 1.8 – 1.2 | 1.25 – 0.75 | (max) 0.005 |
Density & Melting Range
| Melting Range (Celsius) | Density |
| 2571 – 2482 | (g/cm) 8.17 |
Mechanical Properties
| % Elongation | Yield Strength (MPa) | Tensile Strength (MPa) |
| 12 | 827 | 1172 |
DM unit
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