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Korea KS STR11 Heat - resisting steel bars and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: STR11 / STR 11
Category Grade Standard Region/Area Standard Content
Metals STR 11 KS D 3731 Korea Heat - resisting steel bars

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

Element Min Max Similar
Cu - 0.3000 -
Ni - 0.6000 -
Cr 7.5000 9.5000 -
P - 0.0300 -
S - 0.0300 -
Mn - 0.6000 -
Si 1.0000 2.0000 -
C 0.4500 0.5500 -
Si 1.0000 2.0000 -
S - 0.0300 -
P - 0.0300 -
Ni - 0.6000 -
Mn - 0.6000 -
Cu - 0.3000 -
Cr 7.5000 9.5000 -
C 0.4500 0.5500 -

Mechanical Properties of steel grade STR 11

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)
813 (≥) 711 (≥) 12 11 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 412

Physical Properties of steel grade STR 11

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
42 - -     0.34 -  
978 675 - 41.3 311   -  
914 - 42 14.2   221 313

Heat Treatment of steel grade STR 11

Heat treated : 1471°C - 1569°C

Technological Curves of steel grade STR 11

Cross Reference Table (Equivalent Grade) of STR 11

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