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Steel 20ГТЛ

Designation

Name The value
Designation GOST Cyrillic 20ГТЛ
Designation GOST Latin 20GTL
Transliteration 20GTL
The chemical elements 20MnTi

Description

20ГТЛ steel is used: for the manufacture of critical cast parts of automatic coupler and trucks of freight and passenger cars, electric and disulphoton and locomotives.

Standards

Name Code Standards
Castings, steel В82 TU 24.05.486-82

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu Ti
TU 24.05.486-82 0.17-0.25 ≤0.04 ≤0.04 1-1.3 ≤0.3 0.3-0.5 ≤0.3 The rest ≤0.3 0.01-0.03
Fe is the basis.

Mechanical characteristics

sT|s0,2, MPa σB, MPa d y, % kJ/m2, кДж/м2
Casting parts well.d. composition. Normalizing or normalizing + vacation
294-343 ≥490 ≥20 ≥30 ≥490
≥343 ≥510 ≥18 ≥25 ≥490

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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