Steel 63 (К63)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
63 |
| Designation GOST Latin |
63 |
| Transliteration |
63 |
| The chemical elements |
63 |
| Name |
The value |
| Designation GOST Cyrillic |
К63 |
| Designation GOST Latin |
K63 |
| Transliteration |
K63 |
| The 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 |
| Sectional and shaped rolling |
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 |
The 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 characteristics
| sT|s0,2, MPa |
σB, MPa |
d |
Brinell hardness number, 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% |
| σB |
Limit short-term strength |
| d |
Elongation after rupture |
