Designation
| Name |
The value |
| Designation GOST Cyrillic |
03Н18М4ТЮ |
| Designation GOST Latin |
03H18M4TJu |
| Transliteration |
03N18M4TYu |
| By chemical elements |
03Н18Mo4TiAl |
| Name |
The value |
| Designation GOST Cyrillic |
ЧС25 |
| Designation GOST Latin |
ChC25 |
| Transliteration |
ChS25 |
| By chemical elements |
ZrС25 |
Description
03Н18М4ТЮ steel is used: for the production delay the aerospace industry and parts for special purposes.
Note
Maraging steel with higher structural stability in the temperature range from cryogenic to +500 °C.
Standards
| Name |
Code |
Standards |
| Bars and shapes |
В32 |
TU 14-1-811-73 |
Mechanical properties
| Section, mm |
sT|s0,2, MPa |
σU, MPa |
d5, % |
y, % |
KCU, kJ/m2 |
| Bars hot rolled and forged on the other 14-1-811-73. Hardening in air, 810-830 °C (aging 1 HR) + Aging at 470-490 °C (extract 3 hours), air cooling |
|
≥1275 |
≥1370 |
≥8 |
≥50 |
≥590 |
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 |
| d5 |
Elongation after rupture |
| y |
The relative narrowing |
| KCU |
Toughness |
