Steel 03N12KH5M3TJUL

Designation

Name The value
Designation GOST Cyrillic 03Н12Х5М3ТЮЛ
Designation GOST Latin 03H12X5M3TJuL
Transliteration 03N12H5M3TYuL
By chemical elements 03Н12Cr5Mo3TiAl

Description

03N12KH5M3TJUL steel is used: for the manufacture of castings of highly loaded parts for critical applications with wall thickness up to 200 mm.

Standards

Name Code Standards
Steel castings В82 GOST 977-88

Chemical composition

Standard C S P Mn Cr Si Ni Fe Al Ti Mo
GOST 977-88 0.01-0.04 ≤0.015 ≤0.015 ≤0.2 4.5-5 ≤0.2 12-12.5 Rest 0.25-0.45 0.7-0.9 2.5-3
Fe is the basis.

Mechanical properties

Section, mm sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2
Casting. Homogenization at 1180-1200 °C + quenched in air from 1000 °C + aging at 500 °C, air cooling
100 ≥1422 ≥1472 ≥8 ≥35 ≥294

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