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A709Grade HPS70W(A709Grade HPS485W)

China 鞍钢Q/ASB A709GradeHPS70W(A709GradeHPS485W) 桥梁用结构钢板 and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals A709Grade HPS70W(A709Grade HPS485W) Q/ASB 287 China 桥梁用结构钢板

Chemical composition(mass fraction)(wt.%) of the A709Grade HPS70W(A709Grade HPS485W)

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

Mechanical Properties of steel grade A709Grade HPS70W(A709Grade HPS485W)

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)
161 (≥) 445 (≥) 21 23 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 333

Physical Properties of steel grade A709Grade HPS70W(A709Grade HPS485W)

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
14 - -     0.43 -  
739 197 - 32.3 114   -  
941 - 31 32.2   111 244

Heat Treatment of steel grade A709Grade HPS70W(A709Grade HPS485W)

Heat treated : 1327°C - 1351°C

Technological Curves of steel grade A709Grade HPS70W(A709Grade HPS485W)

Cross Reference Table (Equivalent Grade) of A709Grade HPS70W(A709Grade HPS485W)

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