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A131 Grade DH40

America ASTM A131GradeDH40 海船用结构钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A131GradeDH40 / A131 Grade DH40
Category Grade Standard Region/Area Standard Content
Metals A131 Grade DH40 ASTM A131/A131M America 海船用结构钢

Chemical composition(mass fraction)(wt.%) of the A131 Grade DH40

Element Min Max Similar
V 0.0500 0.1000 -
Ti - 0.0200 -
Si 0.1000 0.5000 -
S - 0.0350 -
P - 0.0350 -
Other - - -
Ni - 0.4000 -
Nb 0.0200 0.0500 -
Mo - 0.0800 -
Mn 0.9000 1.6000 -
Cu - 0.3500 -
Cr - 0.2000 -
CEV - 0.4000 -
C - 0.1800 -
Al 0.0150 - -

Mechanical Properties of steel grade A131 Grade DH40

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)
621 (≥) 936 (≥) 21 23 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 312

Physical Properties of steel grade A131 Grade DH40

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
11 - -     0.43 -  
816 547 - 42.3 423   -  
445 - 32 31.2   431 242

Heat Treatment of steel grade A131 Grade DH40

Heat treated : 1146°C - 1111°C

Technological Curves of steel grade A131 Grade DH40

Cross Reference Table (Equivalent Grade) of A131 Grade DH40

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