R9K10 (EI920)

For the manufacture of semi-finishing and roughing tools in the processing of carbon and alloyed structural steels at elevated cutting conditions.

Classification

Country Section Category
CIS, Russia, Ukraine Tool steel High speed tool steel

Chemical composition

Standard Fe, % Si, % Mn, % Co, % Cr, % Ni, % V, % P, % C, % S, % Mo, % W, %
GOST 19265-73 68.64–72.94 < 0.5 < 0.4 9–10.5 3.8–4.4 < 0.4 2–2.6 < 0.03 0.9–1 < 0.03 < 1 9–10.5

Information on suppliers

Physical characteristics

Temperature, °C $$\rho$$, $$\frac{kg}{m^3}$$
20 8300

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Hire GOST 19265-73 annealing 269

Critical point temperatures

Ac1, K Ac3(Acm), K Ar1, K
840 870 785

Standards

Standard Description
GOST 19265-73

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Co % Cobalt
Cr % Chrome
Ni % Nickel
V % Vanadium
P % Phosphorus
C % Carbon
S % Sulfur
Mo % Molybdenum
W % Tungsten

Description of physical characteristics

Parameter Units of measurement Description
$$\rho$$ $$\frac{kg}{m^3}$$ The density of the material

Description of temperatures of critical points

Parameter Units of measurement Description
Ac1 K
Ac3(Acm) K
Ar1 K