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Steel 30GSL

Designation

Name The value
Designation GOST Cyrillic 30ГСЛ
Designation GOST Latin 30GCL
Transliteration 30GSL
The chemical elements 30MnС

Description

30GSL steel is used: for the manufacture of castings, gears, rollers, clips, gear rims, levers, flanges, pulleys, sectors, columns, road wheels and other parts for durability and working parts for wear.

Standards

Name Code Standards
Castings, steel В82 GOST 977-88, OST 24.920.01-80, OST 5Р.9285-95, TU 24-1-12-181-75

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu
GOST 977-88 0.25-0.35 ≤0.04 ≤0.04 1.1-1.4 - 0.6-0.8 - The rest -
OST 5Р.9285-95 0.25-0.35 ≤0.04 ≤0.04 1.1-1.4 ≤0.3 0.6-0.8 ≤0.3 The rest ≤0.3
Fe is the basis.
According to OST 5P.9285-95, the content of nickel and chromium up to 0.50%, copper to 0.40% and molybdenum to 0.12% is not a defect condition provided that the requirements of the standard are observed and if there are no special instructions in the technical conditions of the order or drawing .

Mechanical characteristics

Section, mm sT|s0,2, MPa σB, MPa d y, % kJ/m2, кДж/м2 Brinell hardness number, MPa
Castings for shipbuilding. Quenching in water from 900-930 °C + vacation at 570-650 °C, cooling in water
- ≥400 ≥650 ≥14 ≥30 ≥500 187-241
Castings for shipbuilding. Normalization at 920-950 °C + vacation at 570-650 °C, air cooling
- ≥350 ≥600 ≥14 ≥25 ≥300 170-229
Casting. Annealing in air from 920-950 °C + vacation at 570-650 °C, air cooling
100 ≥392 ≥638 ≥14 ≥30 ≥491 -
Casting. Normalization at 870-890 °C + vacation at 570-600 °C, air cooling
100 ≥343 ≥589 ≥14 ≥25 ≥294 163-229

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
d Elongation after rupture
y The relative narrowing
kJ/m2 Toughness

Technological properties

Name The value
Weldability Welding methods: SMAW, ADS under gas protection electroslag welding. Necessary preheating and subsequent heat treatment.
Propensity to temper brittleness tend not
Flock-sensitive sensitivity not sensitive
Workability by cutting when HB 156 Kn TV.SPL.=1.0 Kn b.St.=0.8

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