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Japan JIS STKM14C 机械结构用碳素钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: STKM14C / STKM14C
Category Grade Standard Region/Area Standard Content
Metals STKM14C JIS G3445 Japan 机械结构用碳素钢管

Chemical composition(mass fraction)(wt.%) of the STKM14C

Element Min Max Similar
Si - 0.3500 -
S - 0.0400 -
P - 0.0400 -
Other - - -
Mn 0.3000 1.0000 -
C - 0.3000 -

Mechanical Properties of steel grade STKM14C

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)
762 (≥) 992 (≥) 31 43 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

Physical Properties of steel grade STKM14C

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
21 - -     0.32 -  
494 866 - 31.3 121   -  
495 - 22 14.2   442 111

Heat Treatment of steel grade STKM14C

Heat treated : 1426°C - 1287°C

Technological Curves of steel grade STKM14C

Cross Reference Table (Equivalent Grade) of STKM14C

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