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Steel 15ХГСМЛ

Designation

Name The value
Designation GOST Cyrillic 15ХГСМЛ
Designation GOST Latin 15XGCML
Transliteration 15HGSML
The chemical elements 15CrMnСMo

Description

15ХГСМЛ steel is used: for the manufacture of the 1st, 2nd and 3rd groups casting parts of pipe fittings in North version with the testing of impact toughness KCU-60≥500 kJ/m2 (5,0 kgf·m/cm2) operating at temperatures of the working medium from -60 up to +400 °C without limitations nominal operating pressure.

Standards

Name Code Standards
Castings, steel В82 OST 26-07-402-83, ST ЦКБА 014-2004

Chemical composition

Standard C S P Mn Cr Si Fe Mo
ST ЦКБА 014-2004 0.1-0.18 ≤0.035 ≤0.04 0.4-1.2 0.4-0.8 0.4-1.2 The rest 0.15-0.3
Fe is the basis.

Mechanical characteristics

sT|s0,2, MPa σB, MPa d y, % kJ/m2, кДж/м2
Casting parts of pipe fittings. Normalizing at 930-950 °C (extract 3 hrs.), air cooling + vacation at 680 °C (extract 3 hours), air cooling KCU+20/-60
≥300 ≥450 ≥25 ≥50 ≥1000/500

Description mechanical marks

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

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