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Russia GOST 40L Steel castings. General specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 40L / 40L
Category Grade Standard Region/Area Standard Content
Metals 40L GOST 977 Russia Steel castings. General specifications

Chemical composition(mass fraction)(wt.%) of the 40L

Element Min Max Similar
Si 0.2000 0.5200 -
S - 0.0500 -
P - 0.0700 -
Mn 0.4500 0.9000 -
C 0.3700 0.4500 -

Mechanical Properties of steel grade 40L

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)
462 (≥) 111 (≥) 32 41 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical Properties of steel grade 40L

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
32 - -     0.14 -  
832 368 - 22.3 332   -  
438 - 14 23.2   442 142

Heat Treatment of steel grade 40L

Heat treated : 1855°C - 1611°C

Technological Curves of steel grade 40L

Cross Reference Table (Equivalent Grade) of 40L

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