Designation
| Name |
The value |
| Designation GOST Cyrillic |
35ХМА |
| Designation GOST Latin |
35XMA |
| Transliteration |
35HMA |
| By chemical elements |
35CrMo |
| Name |
The value |
| Designation GOST Cyrillic |
35ХМАР |
| Designation GOST Latin |
35XMAP |
| Transliteration |
35HMAR |
| By chemical elements |
35CrMoNB |
Description
35ХМА steel is used: for the manufacture of billets of shafts of gas turbine rotors and turbine generators.
Standards
| Name |
Code |
Standards |
| Processing of metals by pressure. Forgings |
В03 |
TU 3-896-78, TU 108-11-910-87 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
Mo |
| TU 3-896-78 |
0.32-42 |
≤0.025 |
≤0.025 |
0.25-0.5 |
0.9-1.3 |
0.17-0.37 |
≤0.5 |
Rest |
≤0.2 |
0.3-0.4 |
Fe is the basis.
According to TU 3-896-78, the chemical composition is given for the 35KMAR rotary steel.
Mechanical properties
| sT|s0,2, MPa |
σU, MPa |
d5, % |
y, % |
KCU, kJ/m2 |
| Forged billet rotors of turbine generators, thermal power plants up to 500 MW I-II categories THAT 3-896-78 (indicate the cutting direction of sample) |
| 392 |
540 |
17 |
40 |
687 |
| 392 |
540 |
16 |
35 |
491 |
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 |
