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Russia GOST R9 Bars and strips out of high-speed steel. Specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: R9 / R9
Category Grade Standard Region/Area Standard Content
Metals R9 GOST 19265 Russia Bars and strips out of high-speed steel. Specifications

Chemical composition(mass fraction)(wt.%) of the R9

Element Min Max Similar

Mechanical Properties of steel grade R9

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)
967 (≥) 958 (≥) 21 24 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 341

Physical Properties of steel grade R9

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 - -     0.33 -  
965 428 - 32.3 414   -  
235 - 33 41.2   221 431

Heat Treatment of steel grade R9

Heat treated : 1931°C - 1565°C

Technological Curves of steel grade R9

Cross Reference Table (Equivalent Grade) of R9

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