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Russia GOST SK30R Silico-calcium. Specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SK30R / SK30R
Category Grade Standard Region/Area Standard Content
Metals SK30R GOST 4762 Russia Silico-calcium. Specifications

Chemical composition(mass fraction)(wt.%) of the SK30R

Element Min Max Similar
Si 55.0000 - -
P - 0.0400 -
Ca 30.0000 - -
C - 1.0000 -
Al - 2.0000 -

Mechanical Properties of steel grade SK30R

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)
426 (≥) 785 (≥) 44 14 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical Properties of steel grade SK30R

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
23 - -     0.33 -  
198 256 - 23.3 441   -  
582 - 44 21.2   322 312

Heat Treatment of steel grade SK30R

Heat treated : 1925°C - 1379°C

Technological Curves of steel grade SK30R

Cross Reference Table (Equivalent Grade) of SK30R

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