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Russia GOST R18 Bars and strips out of high-speed steel. Specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: R18 / R18
Category Grade Standard Region/Area Standard Content
Metals R18 GOST 19265 Russia Bars and strips out of high-speed steel. Specifications

Chemical composition(mass fraction)(wt.%) of the R18

Element Min Max Similar

Mechanical Properties of steel grade R18

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)
737 (≥) 992 (≥) 44 42 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 132

Physical Properties of steel grade R18

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
21 - -     0.14 -  
884 243 - 42.3 324   -  
825 - 13 14.2   411 332

Heat Treatment of steel grade R18

Heat treated : 1328°C - 1162°C

Technological Curves of steel grade R18

Cross Reference Table (Equivalent Grade) of R18

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