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GS8MnMo7-4

Description

GS8MnMo7-4 Mould Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Mould Steel: GS8MnMo7-4
Category Type Steel Grade Standard Country Application
Steel GradesMould Steel GS8MnMo7-4
G38MnSi4
1.5123
G37MnSi5
1.5124
GS-20MoV8-4
1.5406
G18Mo5
1.5422
G8MnMo7-4
1.5430

Chemical composition(mass fraction)(wt.%) of the GS8MnMo7-4

C
Si
Mn
P
S
Cr Ni
0.06-0.10   0.60 1.50-1.80  0.020  0.015   0.20  
Mo Al Cu Nb Ti V Ce
0.30-0.40       0.05    0.10  
N Co Pb B Other    
 0.02            
             

Mechanical Properties of steel grade GS8MnMo7-4

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)
839 (≥) 399 (≥) 12 14 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 112

Physical Properties of steel grade GS8MnMo7-4

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
21 - -     0.32 -  
189 939 - 21.3 231   -  
551 - 33 24.2   333 344

Heat Treatment of steel grade GS8MnMo7-4

Heat treated : 1336°C - 1877°C

Technological Curves of steel grade GS8MnMo7-4


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