Designation
| Name |
The value |
| Designation GOST Cyrillic |
33ХН3МА |
| Designation GOST Latin |
33XH3MA |
| Transliteration |
33HN3MA |
| By chemical elements |
33CrН3Mo |
Description
33ХН3МА steel is used: for the production of shafts, axles, gears, rings, turbine generators and other large critical components.
Note
Structural steel high-quality romancelatina.
Standards
| Name |
Code |
Standards |
| Classification, nomenclature and General rules |
В20 |
OST 1 90005-91 |
| Blanks. Of the workpiece. Slabs |
В31 |
TU 1-92-156-90 |
Mechanical properties
| Section, mm |
t отпуска, °C |
sT|s0,2, MPa |
σU, MPa |
d5, % |
y, % |
KCU, kJ/m2 |
HB, MPa |
| Forgings. Quenching in oil with 835-865 °C + Vacation, air cooling |
|
600-650 |
≥885 |
≥1030 |
≥12 |
≥50 |
≥980 |
- |
| Gradation of performance properties of the finished heat-treated parts for OST 1 90005-91 |
| - |
- |
- |
1080-1270 |
- |
- |
- |
311-363 |
| Forgings. Quenching in oil with 835-865 °C + Vacation, air cooling |
|
560-580 |
- |
1080-1270 |
≥10 |
- |
≥690 |
- |
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 |
| HB |
Brinell hardness number |
