Project Description

Nimonic 901 (UNS N09901)

Nimonic 901 (UNS N09901) is an age-hardenable Ni-Fe-Cr superalloy with significant additions of molybdenum, titanium and aluminum. The alloying route for this high performance material may include combinations of vacuum induction melting, vacuum arc remelting and electroslag remelting, according to the final application and the customer’s specification. Typically, the alloy is used for gas turbine engine discs, shafts, rings, casings and seals with a maximum service temperature of around 600°C (1100°F).

Equivalent Grades

TrademarksGBJISKSASTMUNSDINW.NrGOSTBSNF
Nimonic 901GH2901Inconel 901N099012.4662

Product Forms

Wire, Bar, Strip, Sheet, Plate, Tube, Pipe, Pipe Fittings, Forgings

Chemical Composition,%

CPSMnSiCrNiCoAlTiCuFe
≤0.10≤0.03≤0.03≤0.50≤0.4011.00~14.0040.00~45.00≤1.00≤0.352.80~3.10≤0.50Bal

Typical Physical & Mechanical Properties (RT, Annealed)

Density, g/cm3Melting Point, ℃Tensile Strength, MPaYield Strength, MPaElongation,%
8.141280-1345≥1034≥689≥12

Specifications

Can be made according to customers’ specifications

Features

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.

Applications

Alloy 901 is commonly used for gas turbine engine discs, shafts, rings, casings and seals.