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Russia GOST 20FL Steel castings. General specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 20FL / 20FL
Category Grade Standard Region/Area Standard Content
Metals 20FL GOST 977 Russia Steel castings. General specifications

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

Element Min Max Similar
V 0.0600 0.1200 -
Si 0.2000 0.5200 -
S - 0.0500 -
P - 0.0500 -
Mn 0.7000 1.2000 -
C 0.1400 0.2500 -

Mechanical Properties of steel grade 20FL

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)
114 (≥) 918 (≥) 44 12 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 131

Physical Properties of steel grade 20FL

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
43 - -     0.12 -  
357 524 - 22.3 222   -  
138 - 12 11.2   433 143

Heat Treatment of steel grade 20FL

Heat treated : 1862°C - 1185°C

Technological Curves of steel grade 20FL

Cross Reference Table (Equivalent Grade) of 20FL

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