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Description

G20Mn5 Mould Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Mould Steel: G20Mn5
Category Type Steel Grade Standard Country Application
Steel GradesMould Steel G20Mn5
GS-10Ni19
1.5681
G15CrNi16
1.5921
GS-15CrNi16
1.5921
G22MnNi5
1.6219
GS-22MnNi5
1.6219

Chemical composition(mass fraction)(wt.%) of the G20Mn5

C
Si
Mn
P
S
Cr Ni
 0.17-0.37 0.60  1.00-1.60   0.020 0.020    0.80 
Mo Al Cu Nb Ti V Ce
             
N Co Pb B Other    
             
             

Mechanical Properties of steel grade G20Mn5

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)
622 (≥) 831 (≥) 33 11 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 313

Physical Properties of steel grade G20Mn5

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 - -     0.22 -  
263 729 - 43.3 124   -  
595 - 42 42.2   322 232

Heat Treatment of steel grade G20Mn5

Heat treated : 1638°C - 1959°C

Technological Curves of steel grade G20Mn5


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