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STKM 11 A

Korea KS STKM11A 机械结构用碳素钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: STKM11A / STKM 11 A
Category Grade Standard Region/Area Standard Content
Metals STKM 11 A KS D 3517 Korea 机械结构用碳素钢管

Chemical composition(mass fraction)(wt.%) of the STKM 11 A

Element Min Max Similar
P - 0.0400 -
S - 0.0400 -
Mn - 0.6000 -
Si - 0.3500 -
C - 0.1200 -
Si - 0.3500 -
S - 0.0400 -
P - 0.0400 -
Mn - 0.6000 -
C - 0.1200 -

Mechanical Properties of steel grade STKM 11 A

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)
993 (≥) 462 (≥) 23 23 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 421

Physical Properties of steel grade STKM 11 A

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
43 - -     0.31 -  
627 614 - 11.3 143   -  
915 - 21 11.2   134 341

Heat Treatment of steel grade STKM 11 A

Heat treated : 1617°C - 1893°C

Technological Curves of steel grade STKM 11 A

Cross Reference Table (Equivalent Grade) of STKM 11 A

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