IN738LC

IN738LC is a nickel base precipitation hardening equiaxed cast superalloy, which is characterized by low phosphorus content, small solidification segregation and service temperature below 900 ℃.

Equivalent Grades

TrademarkGBGOSTASTMUNSDINW.Nr.NFBSJISSS
K438GIN738LC

Chemical Composition, %

AlloyCSiMnPSCrNiCoWMoAlTiNbTaBFe
IN738LC0.13-0.20≤0.01≤0.2≤0.0005≤0.0115.3-16.3Bal8.0-9.02.3-2.91.4-2.03.5-4.53.2-4.00.4-1.01.4-2.00.005-0.015≤0.2

Typical Physical and Mechanical Properties (RT, Solution Annealed)

Density, g/cm3Melting Point, ℃Tensile Strength, MPaYield Strength, MPaELongation, %Hardness, HRB
8.201220-1320106093010/

Available Products and Specifications

Rod, Bar, Wire and Forgings
Plate, Sheet and Strip
Pipe and Tube
Welding Product
Others

Features

The alloy is a modified alloy of IN 738 alloy. Compared with it, it not only has excellent heat and corrosion resistance of IN 738 alloy, but also increases the lasting strength by 20-50MPa and the service temperature by 20 ℃. The alloy has good microstructure stability and casting process properties.

Applications

The alloy has been used to make industrial gas turbine blades, offshore aircraft and ship gas turbine parts working under 900℃ for a long time.