Alloy 901 is an age-hardenable super alloy which contains Titanium and Aluminium for precipitation hardening and molybdenum for soild-solution strengthening. Alloy 901 has high yield strength and creep resistance at temperatures to about 1110°F (600°C). As Alloy 901 has a substantial iron content it enables alloy 901 to combine strength with good forging characteristics. Alloy 901 is commonly used for gas turbine engine discs, shafts, rings, casings and seals.
Availability
Alloy 901is available in Flat Bar, Round Bar, Rod, Wire, weld wire and Forging Stock. For all stock availability.
Technical Data
Chemical Composition Limits | ||||||||||||
Weight% | Ni | Cr | Mo | Ti | Co | Cu | Mn | Si | Al | C | S | Fe |
Alloy 901 | 42.5 | 12.5 | 5.75 | 2.9 | 1.0 max | 0.5 max | 0.5 max | 0.4 max | 0.35 max | 0.1 max | 0.03 max | Bal |
Mechanical Properties
Material | Tensile Strength ksi | Yield Strength ksi | Elongation in 4D(%) | Reduction of Area % | Hardness HB |
Alloy 901 | 150 | 100 | 12 | 15 | 302-388 |
Solution Treatment: 1975-2025°F / 2 hrs + Air Cool
Stabilization Heat Treatment: 1425 - 1475°F / 2-4 hrs + Air Cool
Precipitation Heat Treatment: 1325 - 1375 / 24 hrs +Any Cool
Specifications
UNS N09901