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ZG20Cr25Ni20(ZG2Cr25Ni20)

Description

China GBT ZG20Cr25Ni20(ZG2Cr25Ni20) Heavy stainless steel castings and ZG20Cr25Ni20(ZG2Cr25Ni20) Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: ZG20Cr25Ni20(ZG2Cr25Ni20)

Chemical composition(mass fraction)(wt.%) of the ZG20Cr25Ni20(ZG2Cr25Ni20)

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%)
≤0.20 ≤2.00 ≤1.50 0.04 0.04 23.0-27.0 19.00-31.00

Mechanical Properties of steel grade ZG20Cr25Ni20(ZG2Cr25Ni20)

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)
872 (≥) 363 (≥) 43 31 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 424

Physical Properties of steel grade ZG20Cr25Ni20(ZG2Cr25Ni20)

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
23 - -     0.11 -  
718 882 - 22.3 232   -  
587 - 43 41.2   314 444

Heat Treatment of steel grade ZG20Cr25Ni20(ZG2Cr25Ni20)

Heat treated : 1425°C - 1455°C

Technological Curves of steel grade ZG20Cr25Ni20(ZG2Cr25Ni20)

Cross Reference Table (Equivalent Grade) of ZG20Cr25Ni20(ZG2Cr25Ni20)

Grade Standard Country Application
ZG20Cr25Ni20(ZG2Cr25Ni20) GBT China Heavy stainless steel castings

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