Steel 63 (К63)

Designation

Name The value
Designation GOST Cyrillic 63
Designation GOST Latin 63
Transliteration 63
By chemical elements 63
Name The value
Designation GOST Cyrillic К63
Designation GOST Latin K63
Transliteration K63
By chemical elements Co63

Description

63 steel is used: for the manufacture of crane rails of special types of profiles KR70, KR80, KR100, KR120, KR140, used to the ways of cranes.

Note

К63 — steel rail of the Converter.

Standards

Name Code Standards
Bars and shapes В22 GOST 4121-96

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu N As
GOST 4121-96 0.53-0.73 ≤0.05 ≤0.05 0.6-1 ≤0.3 0.15-0.35 ≤0.3 Rest ≤0.3 ≤0.008 ≤0.08
Fe is the basis.
In accordance with GOST 4121-96, according to the manufacturer's agreement with the consumer, the carbon mass fraction should be in the range of 0.54-0.72%, the mass fraction of sulfur and phosphorus should not exceed 0.045% of each element.

Mechanical properties

sT|s0,2, MPa σU, MPa d HB, MPa
Rails special profiles types KR70, KR80, KR100, KR120, KR140 (specified hardness of HB surface of rail head)
≥370 ≥730 ≥6 ≥212

Description mechanical marks

Name Description
sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σU Limit short-term strength
d Elongation after rupture
HB Brinell hardness number