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Russia GOST A40 Rolled steel for shipbuilding. Specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A40 / A40
Category Grade Standard Region/Area Standard Content
Metals A40 GOST 5521 Russia Rolled steel for shipbuilding. Specifications

Chemical composition(mass fraction)(wt.%) of the A40

Element Min Max Similar

Mechanical Properties of steel grade A40

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)
945 (≥) 111 (≥) 43 33 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 441

Physical Properties of steel grade A40

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
21 - -     0.22 -  
556 411 - 21.3 333   -  
132 - 43 21.2   211 124

Heat Treatment of steel grade A40

Heat treated : 1475°C - 1155°C

Technological Curves of steel grade A40

Cross Reference Table (Equivalent Grade) of A40

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