Steel 20ГТЛ

Designation

Name The value
Designation GOST Cyrillic 20ГТЛ
Designation GOST Latin 20GTL
Transliteration 20GTL
By 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
Steel castings 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 Rest ≤0.3 0.01-0.03
Fe is the basis.

Mechanical properties

sT|s0,2, MPa σU, MPa d y, % KCU, kJ/m2
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%
σU Limit short-term strength
d Elongation after rupture
y The relative narrowing
KCU Toughness