Steel 20Х5ТЛ

Designation

Name The value
Designation GOST Cyrillic 20Х5ТЛ
Designation GOST Latin 20X5TL
Transliteration 20H5TL
By chemical elements 20Cr5Ti

Description

20Х5ТЛ steel is used: for the manufacture of foundry parts, furnace doubles, pump casings and other components operating in hot oil environments containing sulfur compounds under pressure at temperatures up to +425 °C; reinforcement of refining units and other parts, heat-resistant at temperatures up to +450 °C.

Note

Stainless steel in hot oil environments containing sulfur compounds martensitic class. Heat resistance up to +450 °C.

Standards

Name Code Standards
Castings with special properties (iron and steel) В83 GOST 2176-77
Steel castings В82 TU 26-02-19-75, TU 4112-091-00220302-2006

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu Ti
GOST 2176-77 0.15-0.25 ≤0.035 ≤0.04 0.3-0.6 4.5-6 0.3-0.6 ≤0.5 Rest ≤0.3 ≤0.1
Fe is the basis.
According to GOST 2176-77, the chemical composition is given for steel grade 20Х5ТЛ. Deviations from the norms of chemical composition are allowed: for carbon ± 0.020%; for silicon ± 0.10%; on manganese, copper, chromium and nickel ± 0.10% each; by titanium and tungsten ± 0.050% each; by vanadium, molybdenum and niobium ± 0.020% each.

Mechanical properties

sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2
The castings are supplied according to GOST 2176-77
≥392 ≥589 ≥16 ≥30 ≥392

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
d5 Elongation after rupture
y The relative narrowing
KCU Toughness