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Korea KS SPSR540 Carbon steel square pipes for general structural purposes and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SPSR540 / SPSR 540
Category Grade Standard Region/Area Standard Content
Metals SPSR 540 KS D 3568 Korea Carbon steel square pipes for general structural purposes

Chemical composition(mass fraction)(wt.%) of the SPSR 540

Element Min Max Similar
C - 0.2300 -
Mn - 1.5000 -
P - 0.0400 -
S - 0.0400 -
Si - 0.4000 -

Mechanical Properties of steel grade SPSR 540

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)
414 (≥) 928 (≥) 33 41 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 244

Physical Properties of steel grade SPSR 540

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
32 - -     0.41 -  
669 498 - 33.3 122   -  
713 - 11 22.2   444 422

Heat Treatment of steel grade SPSR 540

Heat treated : 1359°C - 1328°C

Technological Curves of steel grade SPSR 540

Cross Reference Table (Equivalent Grade) of SPSR 540

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