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Japan JIS STKM13B 机械结构用碳素钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: STKM13B / STKM13B
Category Grade Standard Region/Area Standard Content
Metals STKM13B JIS G3445 Japan 机械结构用碳素钢管

Chemical composition(mass fraction)(wt.%) of the STKM13B

Element Min Max Similar
Si - 0.3500 -
S - 0.0400 -
P - 0.0400 -
Other - - -
Mn 0.3000 0.9000 -
C - 0.2500 -

Mechanical Properties of steel grade STKM13B

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)
399 (≥) 547 (≥) 24 32 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 123

Physical Properties of steel grade STKM13B

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
22 - -     0.42 -  
827 725 - 34.3 132   -  
541 - 33 13.2   441 121

Heat Treatment of steel grade STKM13B

Heat treated : 1389°C - 1361°C

Technological Curves of steel grade STKM13B

Cross Reference Table (Equivalent Grade) of STKM13B

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