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GX40CrNi27-4

Description

GX40CrNi27-4 Mould Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Mould Steel: GX40CrNi27-4
Category Type Steel Grade Standard Country Application
Steel GradesMould Steel GX40CrNi27-4
GX70CrMo29-2
1.4136
GX120CrMo29-2
1.4138
GX2CrNi19-11
1.4309
GX10CrNi18-8
1.4312
GX4CrNi13-4
1.4317

Chemical composition(mass fraction)(wt.%) of the GX40CrNi27-4

C
Si
Mn
P
S
Cr Ni
0.30-0.50 2.00  1.50  0.045  0.030   26.0-28.0 3.50-5.00
Mo Al Cu Nb Ti V Ce
             
N Co Pb B Other    
             
             

Mechanical Properties of steel grade GX40CrNi27-4

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)
315 (≥) 621 (≥) 22 42 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 143

Physical Properties of steel grade GX40CrNi27-4

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
31 - -     0.12 -  
644 892 - 12.3 441   -  
941 - 43 31.2   232 413

Heat Treatment of steel grade GX40CrNi27-4

Heat treated : 1944°C - 1746°C

Technological Curves of steel grade GX40CrNi27-4


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