Steel 35ХМА (35ХМАР)

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