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Russia GOST 20NG Precision alloys. Grades and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 20NG / 20NG
Category Grade Standard Region/Area Standard Content
Metals 20NG GOST 10994 Russia Precision alloys. Grades

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

Element Min Max Similar

Mechanical Properties of steel grade 20NG

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)
819 (≥) 529 (≥) 33 42 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 212

Physical Properties of steel grade 20NG

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
22 - -     0.42 -  
459 976 - 24.3 443   -  
799 - 44 34.2   111 121

Heat Treatment of steel grade 20NG

Heat treated : 1781°C - 1315°C

Technological Curves of steel grade 20NG

Cross Reference Table (Equivalent Grade) of 20NG

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