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France AFNOR NF G20Mn6 一般工程使用的钢铸件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: G20Mn6 / G20Mn6
Category Grade Standard Region/Area Standard Content
Metals G20Mn6 NF A32-054 France 一般工程使用的钢铸件

Chemical composition(mass fraction)(wt.%) of the G20Mn6

Element Min Max Similar
V - 0.0500 -
Si - 0.6000 -
S - 0.0250 -
P - 0.0300 -
Ni - 0.4000 -
Mo - 0.1500 -
Mn - 1.8000 -
Cr - 0.3000 -
C 0.1700 0.2300 -

Mechanical Properties of steel grade G20Mn6

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)
857 (≥) 536 (≥) 33 21 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 323

Physical Properties of steel grade G20Mn6

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
44 - -     0.11 -  
688 571 - 33.3 434   -  
812 - 13 32.2   441 321

Heat Treatment of steel grade G20Mn6

Heat treated : 1555°C - 1924°C

Technological Curves of steel grade G20Mn6

Cross Reference Table (Equivalent Grade) of G20Mn6

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