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Russia GOST R6M5K5 Bars and strips out of high-speed steel. Specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: R6M5K5 / R6M5K5
Category Grade Standard Region/Area Standard Content
Metals R6M5K5 GOST 19265 Russia Bars and strips out of high-speed steel. Specifications

Chemical composition(mass fraction)(wt.%) of the R6M5K5

Element Min Max Similar
W 5.7000 6.7000 -
V 1.7000 2.1000 -
Si - 0.5000 -
S - 0.0300 -
P - 0.0300 -
Ni - 0.4000 -
Mo 4.8000 5.3000 -
Mn - 0.5000 -
Cr 3.8000 4.3000 -
Co 4.7000 5.2000 -
C 0.8600 0.9400 -

Mechanical Properties of steel grade R6M5K5

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)
254 (≥) 764 (≥) 41 43 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 314

Physical Properties of steel grade R6M5K5

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
32 - -     0.34 -  
385 465 - 33.3 113   -  
945 - 11 41.2   312 414

Heat Treatment of steel grade R6M5K5

Heat treated : 1792°C - 1664°C

Technological Curves of steel grade R6M5K5

Cross Reference Table (Equivalent Grade) of R6M5K5

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