|Designation GOST Cyrillic||15Х25ТЛ|
|Designation GOST Latin||15X25TL|
|By chemical elements||15Cr25Ti|
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.
The corrosion resistant steel of the ferritic class. Steel heat-resistant at temperatures up to +1100 °C, has a satisfactory resistance to intergranular corrosion.
|Castings with special properties (iron and steel)||В83||GOST 2176-77|
|Steel castings||В82||GOST 977-88, OST 24.920.01-80|
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.
|Section, mm||sT|s0,2, MPa||σU, MPa|
|Casting. Without heat treatment|
Description mechanical marks
|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|