K403

K403 is a nickel base precipitation hardening equiaxed cast superalloy. The alloy is comprehensively strengthened by a variety of metal elements at a service temperature below 1000 ℃.

Equivalent Grades

TrademarkGBGOSTASTMUNSDINW.Nr.NFBSJISSS
K403ЖС6К

Chemical Composition, %

AlloyCSiMnPSCrNiCoWMoAlTiBZrFe
K4030.11-0.18≤0.50≤0.50≤0.02≤0.0110.0-12.0Bal4.5-6.04.8-5.53.8-4.55.3-5.92.3-2.90.012-0.0220.03-0.08≤2.0

Typical Physical and Mechanical Properties (RT, Solution Annealed)

Density, g/cm3Melting Point, ℃Tensile Strength, MPaYield Strength, MPaELongation, %Hardness, HRB
8.11260-13388308/

Available Products and Specifications

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

Features

The alloy has high high temperature strength, and the lasting strength at 1000 ℃ and 100h can reach 150MPa, and the lasting strength at 1000h can reach 94Mpa.

Applications

The alloy has good casting performance and can cast precision castings with complex shapes. It is suitable for making gas turbine guide blades working below 1000 degrees and turbine rotor blades and other parts working below 900 degrees.