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Russia GOST 20HGSFL Cold-resistant and wear-resistant steel castings. General specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 20HGSFL / 20HGSFL
Category Grade Standard Region/Area Standard Content
Metals 20HGSFL GOST 21357 Russia Cold-resistant and wear-resistant steel castings. General specifications

Chemical composition(mass fraction)(wt.%) of the 20HGSFL

Element Min Max Similar

Mechanical Properties of steel grade 20HGSFL

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)
579 (≥) 871 (≥) 13 32 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 424

Physical Properties of steel grade 20HGSFL

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
42 - -     0.23 -  
974 456 - 33.3 331   -  
181 - 14 44.2   241 322

Heat Treatment of steel grade 20HGSFL

Heat treated : 1841°C - 1185°C

Technological Curves of steel grade 20HGSFL

Cross Reference Table (Equivalent Grade) of 20HGSFL

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