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China 唐山国丰Q/TGF S275JR-B 结构用热轧钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: S275JR-B / S275JR-B
Category Grade Standard Region/Area Standard Content
Metals S275JR-B Q/TGF 303 China 结构用热轧钢带

Chemical composition(mass fraction)(wt.%) of the S275JR-B

Element Min Max Similar
C - 0.2100 -
Si - 0.0400 -
Mn 0.3000 1.0000 -
P - 0.0350 -
S - 0.0350 -
Alt 0.0100 - -
B - - -
Cu - 0.2000 -
Cr - 0.1500 -
Ni - 0.1500 -

Mechanical Properties of steel grade S275JR-B

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)
735 (≥) 375 (≥) 31 42 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 422

Physical Properties of steel grade S275JR-B

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
33 - -     0.44 -  
639 226 - 34.3 433   -  
661 - 34 42.2   334 211

Heat Treatment of steel grade S275JR-B

Heat treated : 1655°C - 1627°C

Technological Curves of steel grade S275JR-B

Cross Reference Table (Equivalent Grade) of S275JR-B

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