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ZG40Cr30Ni20(ZG4Cr30Ni20)

Description

China GBT ZG40Cr30Ni20(ZG4Cr30Ni20) Large heat resistant steel castings and ZG40Cr30Ni20(ZG4Cr30Ni20) Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: ZG40Cr30Ni20(ZG4Cr30Ni20)

Chemical composition(mass fraction)(wt.%) of the ZG40Cr30Ni20(ZG4Cr30Ni20)

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%)
0.20-0.60 ≤2.00 ≤2.00 0.04 0.04 28.0-32.0 18.0-22.0 ≤0.50

Mechanical Properties of steel grade ZG40Cr30Ni20(ZG4Cr30Ni20)

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
289 (≥) 199 (≥) 32 13 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 324

Physical Properties of steel grade ZG40Cr30Ni20(ZG4Cr30Ni20)

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
11 - -     0.24 -  
676 898 - 24.3 331   -  
686 - 22 43.2   123 142

Heat Treatment of steel grade ZG40Cr30Ni20(ZG4Cr30Ni20)

Heat treated : 1647°C - 1866°C

Technological Curves of steel grade ZG40Cr30Ni20(ZG4Cr30Ni20)

Cross Reference Table (Equivalent Grade) of ZG40Cr30Ni20(ZG4Cr30Ni20)

Grade Standard Country Application
ZG40Cr30Ni20(ZG4Cr30Ni20) GBT China Large heat resistant steel castings

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