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China GB 40Mn2Si 金刚石岩芯钻探用无缝钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 40Mn2Si / 40Mn2Si
Category Grade Standard Region/Area Standard Content
Metals 40Mn2Si GB 3423 China 金刚石岩芯钻探用无缝钢管

Chemical composition(mass fraction)(wt.%) of the 40Mn2Si

Element Min Max Similar
Si 0.4000 0.7000 -
S - 0.0400 -
P - 0.0400 -
Mn 1.3000 1.8000 -
C 0.3700 0.4500 -

Mechanical Properties of steel grade 40Mn2Si

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)
817 (≥) 537 (≥) 13 31 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 411

Physical Properties of steel grade 40Mn2Si

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
23 - -     0.33 -  
158 257 - 11.3 314   -  
948 - 11 34.2   431 123

Heat Treatment of steel grade 40Mn2Si

Heat treated : 1565°C - 1527°C

Technological Curves of steel grade 40Mn2Si

Cross Reference Table (Equivalent Grade) of 40Mn2Si

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