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G20NiMoCr4

Description

G20NiMoCr4 Mould Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Mould Steel: G20NiMoCr4

Chemical composition(mass fraction)(wt.%) of the G20NiMoCr4

C
Si
Mn
P
S
Cr Ni
 0.17-0.23 0.60  0.80-1.20  0.025  0.015   0.30-0.50  0.80-1.20
Mo Al Cu Nb Ti V Ce
0.40-0.80             
N Co Pb B Other    
             
             

Mechanical Properties of steel grade G20NiMoCr4

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)
175 (≥) 733 (≥) 31 23 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 124

Physical Properties of steel grade G20NiMoCr4

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
12 - -     0.32 -  
427 964 - 14.3 244   -  
788 - 41 12.2   312 414

Heat Treatment of steel grade G20NiMoCr4

Heat treated : 1623°C - 1539°C

Technological Curves of steel grade G20NiMoCr4


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