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Russia GOST 75 Spring carbon and alloy steel bars. Specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 75 / 75
Category Grade Standard Region/Area Standard Content
Metals 75 GOST 14959 Russia Spring carbon and alloy steel bars. Specifications

Chemical composition(mass fraction)(wt.%) of the 75

Element Min Max Similar

Mechanical Properties of steel grade 75

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)
752 (≥) 936 (≥) 23 31 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical Properties of steel grade 75

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
12 - -     0.42 -  
493 211 - 44.3 332   -  
575 - 12 23.2   243 413

Heat Treatment of steel grade 75

Heat treated : 1897°C - 1345°C

Technological Curves of steel grade 75

Cross Reference Table (Equivalent Grade) of 75

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