Steel 36ХН3МФА (36ХН3МФ)

Designation

Name The value
Designation GOST Cyrillic 36ХН3МФА
Designation GOST Latin 36XH3MFA
Transliteration 36HN3MFA
By chemical elements 36CrН3MoV
Name The value
Designation GOST Cyrillic 36ХН3МФ
Designation GOST Latin 36XH3MF
Transliteration 36HN3MF
By chemical elements 36CrН3MoV

Description

36ХН3МФА steel is used: for the manufacture of billets of shafts and one-piece rotors stationary and transport steam turbines.

Standards

Name Code Standards
Processing of metals by pressure. Forgings В03 TU 108-1029-81

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu V Mo
TU 108-1029-81 0.3-0.4 ≤0.02 ≤0.02 0.25-0.5 1.2-1.5 ≤0.37 3-3.5 Rest ≤0.25 0.1-0.2 0.35-0.5
Fe is the basis.
According to TU 108-1029-81, the chemical composition is given for steel grade 36ХН3МФА. In the workpieces, deviations in the content of the elements indicated in the table are allowed: carbon ± 0.010%, silicon + 0.030%. For metal VDP, the deviation of manganese content +0.10% / - 0.15% is allowed. The deviation of the silicon content in the metal VDP and ESR is allowed within ± 0.050%. In the ESR steel, the sulfur content should not be more than 0.015%.

Mechanical properties

sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2
Billet shafts and rotors of steam turbines on the other 108-1029-81 (in the delivery condition specified strength and direction and place the cuttings sample)
667-834 ≥834 ≥14 ≥40 ≥590
667-834 ≥834 ≥10 ≥30 ≥390

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