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Russia GOST D40 Rolled steel for shipbuilding. Specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: D40 / D40
Category Grade Standard Region/Area Standard Content
Metals D40 GOST 5521 Russia Rolled steel for shipbuilding. Specifications

Chemical composition(mass fraction)(wt.%) of the D40

Element Min Max Similar
V 0.0500 0.1000 -
Si 0.1500 0.5000 -
S - 0.0350 -
P - 0.0350 -
Ni - 0.4000 -
Nb 0.0200 0.0500 -
Mo - 0.0800 -
Mn 0.9000 1.6000 -
Cu - 0.3500 -
Cr - 0.2000 -
C - 0.1800 -
Al 0.0150 0.0600 -

Mechanical Properties of steel grade D40

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)
243 (≥) 123 (≥) 23 33 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 143

Physical Properties of steel grade D40

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 - -     0.14 -  
554 369 - 14.3 422   -  
631 - 32 21.2   332 144

Heat Treatment of steel grade D40

Heat treated : 1894°C - 1137°C

Technological Curves of steel grade D40

Cross Reference Table (Equivalent Grade) of D40

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