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GX40CrNiSi25-12

Description

GX40CrNiSi25-12 Mould Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Mould Steel: GX40CrNiSi25-12

Chemical composition(mass fraction)(wt.%) of the GX40CrNiSi25-12

C
Si
Mn
P
S
Cr Ni
0.30-0.50 1.00-2.50  2.00  0.040  0.030  24.0-27.0  11.0-14.0
Mo Al Cu Nb Ti V Ce
≤0.50            
N Co Pb B Other    
             
             

Mechanical Properties of steel grade GX40CrNiSi25-12

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)
736 (≥) 455 (≥) 22 12 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical Properties of steel grade GX40CrNiSi25-12

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
24 - -     0.21 -  
552 246 - 21.3 344   -  
925 - 31 42.2   224 121

Heat Treatment of steel grade GX40CrNiSi25-12

Heat treated : 1738°C - 1198°C

Technological Curves of steel grade GX40CrNiSi25-12


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