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America ASTM A440 高强度结构钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A440 / A440
Category Grade Standard Region/Area Standard Content
Metals A440 ASTM A440 America 高强度结构钢

Chemical composition(mass fraction)(wt.%) of the A440

Element Min Max Similar
Si - 0.3000 -
S - 0.0500 -
P - 0.0400 -
Mn - - 1.4000
Cu - - 0.2000
C - 0.2800 -

Mechanical Properties of steel grade A440

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)
176 (≥) 586 (≥) 14 22 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 314

Physical Properties of steel grade A440

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
22 - -     0.42 -  
954 676 - 24.3 121   -  
675 - 33 33.2   421 432

Heat Treatment of steel grade A440

Heat treated : 1996°C - 1284°C

Technological Curves of steel grade A440

Cross Reference Table (Equivalent Grade) of A440

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