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Japan JIS SPA-C 高性能耐大气腐蚀热轧钢材 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SPA-C / SPA-C
Category Grade Standard Region/Area Standard Content
Metals SPA-C JIS G3125 Japan 高性能耐大气腐蚀热轧钢材

Chemical composition(mass fraction)(wt.%) of the SPA-C

Element Min Max Similar
Si 0.2000 0.7500 -
S - 0.0350 -
P 0.0700 0.1500 -
Ni - 0.6500 -
Mn - 0.6000 -
Cu 0.2500 0.5500 -
Cr 0.3000 1.2500 -
C - 0.1200 -

Mechanical Properties of steel grade SPA-C

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)
677 (≥) 428 (≥) 22 33 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 314

Physical Properties of steel grade SPA-C

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 - -     0.11 -  
865 819 - 31.3 344   -  
336 - 22 13.2   114 112

Heat Treatment of steel grade SPA-C

Heat treated : 1349°C - 1221°C

Technological Curves of steel grade SPA-C

Cross Reference Table (Equivalent Grade) of SPA-C

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