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Steel 03N12KH5M3TL

Designation

Name The value
Designation GOST Cyrillic 03Н12Х5М3ТЛ
Designation GOST Latin 03H12X5M3TL
Transliteration 03N12H5M3TL
The chemical elements 03Н12Cr5Mo3Ti

Description

03N12KH5M3TL 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
Castings, steel В82 GOST 977-88

Chemical composition

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

Mechanical characteristics

Section, mm sT|s0,2, MPa σB, MPa d5, % y, % kJ/m2, кДж/м2
Casting. Homogenization at 1180-1200 °C + quenched in air from 1000 °C + aging at 500 °C, air cooling
100 ≥1275 ≥1324 ≥8 ≥45 ≥491

Description mechanical marks

Name Description
Section Section
sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σB Limit short-term strength
d5 Elongation after rupture
y The relative narrowing
kJ/m2 Toughness

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