Steel A2

Designation

Name The value
Designation GOST Cyrillic А2
Designation GOST Latin A2
Transliteration A2
By chemical elements -

Description

A2 steel is used: for the manufacture of laminated and forged billet of square or circular cross-section designed for the production of axles of locomotives, electric trains, diesel and electric trains, wagons, railway and subway Railways.

Note

Non-alloy steel.

Standards

Name Code Standards
Bandages. Wheels. Axis В41 GOST 30272-96, GOST 31334-2007

Chemical composition

Standard C S P Mn Cr Si Fe Cu V Mo
GOST 31334-2007 ≤0.5 ≤0.04 ≤0.04 ≤1.2 ≤0.3 ≤0.5 Rest ≤0.3 ≤0.05 ≤0.08
Fe is the basis.

Mechanical properties

Section, mm sT|s0,2, MPa σU, MPa d5, % KCU, kJ/m2
Steel A2. The axis of the driving and trailer cars for 31331-2007 GOST, ISO 105-3-82. Mode N: Normalizing or Normalizing + Vacation
≥360 600-750 ≥17 ≥196
Steel A2. The axis of the driving and trailer cars for 31331-2007 GOST, ISO 105-3-82. Mode T: Tempering + Vacation
≥390 620-770 ≥19 ≥245

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
KCU Toughness