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A709 HPS70W

China 首钢Q/SG A709HPS70W 美标热轧钢板和钢带 第3部分: 桥梁用结构钢板 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A709HPS70W / A709 HPS70W
Category Grade Standard Region/Area Standard Content
Metals A709 HPS70W Q/SGZGS 0335.3 China 美标热轧钢板和钢带 第3部分: 桥梁用结构钢板

Chemical composition(mass fraction)(wt.%) of the A709 HPS70W

Element Min Max Similar
C - 0.1100 -
Mn 1.1000 1.3500 -
Mn 1.1000 1.5000 -
P - 0.0200 -
S - 0.0060 -
Si 0.3000 0.5000 -
Ni 0.2500 0.4000 -
Cr 0.4500 0.7000 -
Cu 0.2500 0.4000 -
V 0.0400 0.0800 -
Mo 0.0200 0.0800 -
Al 0.0100 0.0400 -
N - 0.0150 -

Mechanical Properties of steel grade A709 HPS70W

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)
193 (≥) 355 (≥) 34 12 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 141

Physical Properties of steel grade A709 HPS70W

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 - -     0.43 -  
988 445 - 33.3 423   -  
955 - 21 31.2   121 143

Heat Treatment of steel grade A709 HPS70W

Heat treated : 1719°C - 1968°C

Technological Curves of steel grade A709 HPS70W

Cross Reference Table (Equivalent Grade) of A709 HPS70W

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