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China 唐山国丰Q/TGF Q275D 结构用热轧钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Q275D / Q275D
Category Grade Standard Region/Area Standard Content
Metals Q275D Q/TGF 303 China 结构用热轧钢带

Chemical composition(mass fraction)(wt.%) of the Q275D

Element Min Max Similar
C - 0.2000 -
Si - 0.3500 -
Mn - 1.5000 -
P - 0.0350 -
S - 0.0350 -

Mechanical Properties of steel grade Q275D

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)
378 (≥) 579 (≥) 14 21 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical Properties of steel grade Q275D

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
41 - -     0.12 -  
843 777 - 31.3 231   -  
432 - 44 14.2   432 224

Heat Treatment of steel grade Q275D

Heat treated : 1661°C - 1923°C

Technological Curves of steel grade Q275D

Cross Reference Table (Equivalent Grade) of Q275D

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