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Russia GOST 65 Spring carbon and alloy steel bars. Specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 65 / 65
Category Grade Standard Region/Area Standard Content
Metals 65 GOST 14959 Russia Spring carbon and alloy steel bars. Specifications

Chemical composition(mass fraction)(wt.%) of the 65

Element Min Max Similar
Si 0.1700 0.3700 -
S - 0.0350 -
P - 0.0350 -
Mn 0.5000 0.8000 -
Cr - 0.2500 -
C 0.6200 0.7000 -

Mechanical Properties of steel grade 65

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)
187 (≥) 331 (≥) 14 42 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 133

Physical Properties of steel grade 65

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 - -     0.13 -  
892 436 - 24.3 442   -  
581 - 13 41.2   242 411

Heat Treatment of steel grade 65

Heat treated : 1644°C - 1426°C

Technological Curves of steel grade 65

Cross Reference Table (Equivalent Grade) of 65

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