K63 (63)

for the manufacture of crane rails

Classification

Country Section Category
CIS, Russia, Ukraine Steels for special purposes Steel for rail transport

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Cu, % Ni, % As, % P, % C, % S, % N, %
GOST Р 51685-2000 96.832–98.72 0.15–0.35 0.6–1 < 0.3 < 0.3 < 0.3 < 0.08 < 0.05 0.53–0.73 < 0.05 < 0.008

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{P}$$, $$MPa$$ $$\epsilon_L$$, % Treatment
Alloy GOST 4121 - 96 731 372 6

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Alloy GOST 4121 - 96 212

Standards

Standard Description
GOST Р 51685-2000

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Cr % Chrome
Cu % Copper
Ni % Nickel
As % Arsenic
P % Phosphorus
C % Carbon
S % Sulfur
N % Nitrogen

Description of mechanical properties

Parameter Units of measurement Description
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength
$$\sigma_{P}$$ $$MPa$$ Proportionality limit
$$\epsilon_L$$ % Elongation at break (longitudinal)