Steel 01Х25М2Т (ЧС78)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
01Х25М2Т |
| Designation GOST Latin |
01X25M2T |
| Transliteration |
01H25M2T |
| The chemical elements |
01Cr25Mo2Ti |
| Name |
The value |
| Designation GOST Cyrillic |
ЧС78 |
| Designation GOST Latin |
ChC78 |
| Transliteration |
ChS78 |
| The chemical elements |
ZrС78 |
Description
01Х25М2Т steel is used: for the manufacture of tubes of heat exchangers petrochemical equipment, parts and equipment, production of caustic soda, chlorine, petroleum refining and pulp and paper promyshlennosti operating temperature up to +300 °C; the welding wire.
Standards
| Name |
Code |
Standards |
| Bulls. Blanks. Slabs |
В31 |
TU 14-1-3547-83 |
| Sheets and stripes |
В33 |
TU 14-1-3622-83 |
| Welding and cutting of metals. Soldering, riveting |
В05 |
TU 14-1-3996-85 |
| Pipes steel and connecting parts to them |
В62 |
TU 14-3-1275-83 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
N |
Ti |
Mo |
| TU 14-1-3547-83 |
≤0.01 |
≤0.015 |
≤0.015 |
≤0.7 |
24-26 |
≤0.5 |
≤0.4 |
The rest |
≤0.15 |
≤0.01 |
0.15-0.35 |
1.8-2.5 |
Fe is the basis.
According to TU 14-1-3547-83, the chemical composition is given for steel grade 01Х25М2Т-ВИ (ЧС78-ВИ).
Mechanical characteristics
| Section, mm |
sT|s0,2, MPa |
σB, MPa |
d5, % |
| Pipe seamless in the delivery state after quenching on the other 14-3-1275-83 (DH = 25-75 mm, wall 2-3 mm) |
|
≥225 |
≥400 |
≥25 |
Description mechanical marks
| Name |
Description |
| Section |
Section |
| sT|s0,2 |
Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2% |
| σB |
Limit short-term strength |
| d5 |
Elongation after rupture |
