Nickel Alloy 901/ Nimonic 901®

Technical Data Sheet

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.

Chemical Composition Limits

Weight%

Alloy 901

42.5

12.5

5.75

2.9

1.0 max

0.5 max

0.4 max

0.35 max

0.1 max

0.03 max

Bal

Typical 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

Heat Treatment:
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

Availability
Alloy 901 is available in Flat Bar, Round Bar, Rod, Wire, Welding Wire and Forging Stock. For all stock availability contact Sales.

Specifications
UNS N09901
Werkstoff Number 2.4662
BR HR 55
AMS 5660
AMS 5661
AECMA PrEN2176
AECMA PrEN2177
ISO 9723
ISO 9725
MSRR 7029, MSRR 7031
Nimonic alloy 901 (tradename)

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Disclaimer
Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.