Steel 15KH25TL

Designation

Name The value
Designation GOST Cyrillic 15Х25ТЛ
Designation GOST Latin 15X25TL
Transliteration 15H25TL
By chemical elements 15Cr25Ti

Description

15KH25TL steel is used: for the manufacture of castings parts that are not are exposed to permanent and variable loads (equipment for fuming nitric or phosphoric acids); many details of chemical engineering, including those working in contact with urea; furnace fittings, plates, etc.

Note

The corrosion resistant steel of the ferritic class. Steel heat-resistant at temperatures up to +1100 °C, has a satisfactory resistance to intergranular corrosion.

Standards

Name Code Standards
Castings with special properties (iron and steel) В83 GOST 2176-77
Steel castings В82 GOST 977-88, OST 24.920.01-80

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu Ti
GOST 977-88 0.1-0.2 ≤0.03 ≤0.035 0.5-0.8 23-27 0.5-1.2 - Rest - 0.4-0.8
GOST 2176-77 0.1-0.2 ≤0.03 ≤0.035 0.5-0.8 23-27 0.5-1.2 ≤0.5 Rest ≤0.3 0.4-0.8
Fe is the basis.
According to GOST 2176-77 the chemical composition is given for steel grade 15H25TL. 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

Section, mm sT|s0,2, MPa σU, MPa
Casting. Without heat treatment
100 ≥275 ≥441

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