Steel 12KH21N5G2SM2L

Designation

Name The value
Designation GOST Cyrillic 12Х21Н5Г2СМ2Л
Designation GOST Latin 12X21H5G2CM2L
Transliteration 12H21N5G2SM2L
By chemical elements 12Cr21Н5Mn2СMo2

Description

12KH21N5G2SM2L steel is used: for the manufacture of castings to various industrial purpose.

Note

Steel corrosion resistant austenitic-ferritic class. Stainless steel in a number of inorganic and organic acids.

Standards

Name Code Standards
Steel castings В82 GOST 977-88

Chemical composition

Standard C S P Mn Cr Si Ni Fe Mo
GOST 977-88 ≤0.12 ≤0.035 ≤0.045 ≤2 20-22 ≤1.5 4.5-6 Rest 1.8-2.2
Fe is the basis.

Mechanical properties

Section, mm sT|s0,2, MPa σU, MPa d y, % KCU, kJ/m2
Casting. Quenching in water or air from 1050-1100 °C
100 ≥343 ≥549 ≥22 ≥20 ≥590

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