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Description

1.7220 Mould Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Mould Steel: 1.7220
Category Type Steel Grade Standard Country Application
Steel GradesMould Steel 1.7220
1.7140
G20MnNi5
1.7150
GS-20MnNi5
1.7150
G25CrMo4
1.7218
GS-25CrMo4
1.7218
GS-34CrMo4

Chemical composition(mass fraction)(wt.%) of the 1.7220

C
Si
Mn
P
S
Cr Ni
 0.30-0.37 0.60   0.50-0.80  0.035 0.015  0.80-1.20   
Mo Al Cu Nb Ti V Ce
 0.20-0.30            
N Co Pb B Other    
             
             

Mechanical Properties of steel grade 1.7220

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)
866 (≥) 143 (≥) 43 41 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 124

Physical Properties of steel grade 1.7220

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 -  
635 342 - 12.3 414   -  
781 - 21 31.2   112 221

Heat Treatment of steel grade 1.7220

Heat treated : 1793°C - 1879°C

Technological Curves of steel grade 1.7220

Cross Reference Table (Equivalent Grade) of 1.7220

Grade Standard Country Application
1.7220 DIN Germany

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