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France AFNOR NF 22MD5-M 一般工程使用的钢铸件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 22MD5-M / 22 MD5-M
Category Grade Standard Region/Area Standard Content
Metals 22 MD5-M NF A32-054 France 一般工程使用的钢铸件

Chemical composition(mass fraction)(wt.%) of the 22 MD5-M

Element Min Max Similar
Si - 0.6000 -
S - 0.0350 -
P - 0.0400 -
Mo 0.2000 0.4000 -
Mn - 1.4000 -
Fe - - -
C - 0.2500 -

Mechanical Properties of steel grade 22 MD5-M

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)
747 (≥) 771 (≥) 33 31 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 141

Physical Properties of steel grade 22 MD5-M

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
41 - -     0.34 -  
413 841 - 23.3 341   -  
527 - 31 22.2   214 431

Heat Treatment of steel grade 22 MD5-M

Heat treated : 1677°C - 1334°C

Technological Curves of steel grade 22 MD5-M

Cross Reference Table (Equivalent Grade) of 22 MD5-M

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