Steel 35ХМФА

Designation

Name The value
Designation GOST Cyrillic 35ХМФА
Designation GOST Latin 35XMFA
Transliteration 35HMFA
By chemical elements 35CrMoV

Description

35ХМФА steel is used: for the manufacture of forgings of various parts of General machinery; shafts, connecting rod, fasteners, pipe joints, operating at temperatures up to 400 °C.

Note

Structural steel high quality chrome-molybdenum-vanadium.

Standards

Name Code Standards
Blanks. Of the workpiece. Slabs В31 TU 1-92-156-90
Processing of metals by pressure. Forgings В03 TU 108.11.917-87
Sheets and strips В33 TU 108.1273-84
Bars and shapes В32 TU 14-1-950-74, TU 14-1-3238-81, TU 14-1-3238-2006

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu V Ti Mo W
TU 14-1-950-74 0.3-0.38 ≤0.025 ≤0.025 0.4-0.7 1-1.3 0.17-0.37 ≤0.3 Rest ≤0.25 0.1-0.2 ≤0.03 0.2-0.3 ≤0.2
TU 108.11.917-87 0.3-0.38 ≤0.03 ≤0.03 0.4-0.7 1-1.3 0.17-0.37 ≤0.4 Rest ≤0.3 0.1-0.2 - 0.2-0.3 -
TU 14-1-3238-81 0.3-0.38 ≤0.025 ≤0.025 0.4-0.7 1-1.3 0.17-0.37 - Rest - 0.1-0.2 - 0.2-0.3 -
TU 108.1273-84 0.3-0.38 ≤0.03 ≤0.035 0.4-0.7 1-1.3 0.17-0.37 ≤0.4 Rest ≤0.35 0.1-0.2 - 0.2-0.3 -
Fe is the basis.
According to TU 14-1-3238-81 the chemical composition is given for steel grade 35ХМФА. For steel grade 35ХМФА-СШ the content S≤0,015%.
According to TU 108.1273-84, the chemical composition is given for steel grade 35XMFA. Deviations in chemical composition are allowed: by carbon ± 0.010%, for silicon + 0.050 / -0.020%, for manganese ± 0.050%, for chromium ± 0.050%, for molybdenum ± 0.020%, for vanadium ± 0.020%.

Mechanical properties

Section, mm sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2 HB, MPa
Bars and strip, hot-rolled, forged, kalibrovochnye with special surface finish. Quenching in oil with 885-915 °C + Vacation at 600-650 °C, cooling in water
≥930 ≥1080 ≥10 ≥50 ≥883 302-376

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