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China 舞钢Q/WTB P20M 供立胜公司合金模具钢P20M技术条件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: P20M / P20M
Category Grade Standard Region/Area Standard Content
Metals P20M WYJ 115 China 供立胜公司合金模具钢P20M技术条件

Chemical composition(mass fraction)(wt.%) of the P20M

Element Min Max Similar
Mo - 0.5000 -
Cr - 2.0000 -
S - 0.0100 -
P - 0.0250 -
Mn - 1.5000 -
Si - 0.4500 -
C - 0.4000 -

Mechanical Properties of steel grade P20M

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)
447 (≥) 358 (≥) 23 11 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical Properties of steel grade P20M

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
32 - -     0.12 -  
359 217 - 22.3 142   -  
524 - 31 14.2   111 434

Heat Treatment of steel grade P20M

Heat treated : 1428°C - 1822°C

Technological Curves of steel grade P20M

Cross Reference Table (Equivalent Grade) of P20M

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