Steel 40G1

Designation

Name The value
Designation GOST Cyrillic 40Г1
Designation GOST Latin 40G1
Transliteration 40G1
By chemical elements 40Mn1

Description

Steel 40G1 is used: for the manufacture of castings to various industrial purpose.

Standards

Name Code Standards
Steel castings В82 GOST 977-88

Chemical composition

Standard C S P Mn Si Fe V
GOST 977-88 0.35-0.45 ≤0.04 ≤0.04 1.6-1.9 0.2-0.5 Rest 0.1-0.2
Fe is the basis.

Mechanical properties

Section, mm sT|s0,2, MPa σU, MPa d y, % KCU, kJ/m2
Hardening in air, 860-870 °C + vacation at 640-660 °C, air cooling
100 ≥520 ≥819 ≥8 ≥20 ≥285

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
d Elongation after rupture
y The relative narrowing
KCU Toughness