Steel 33ХН3МА

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