Steel 35KH23N7SL (25Х23Н7СЛ)
Designation
Description
35KH23N7SL steel is used: for the manufacture of casting parts of tube furnaces of oil refineries and other parts operating at temperatures up to +1000 °C; casting parts mining and metallurgical equipment; hinged cast chains for rotary kilns, consisting of high-temperature or heat-resistant parts applied in the middle area when the temperature of the gas stream +500−1000 °C.
Note
Heat-resistant steel austenite-ferritic class.
Steel corrosion-resistant in sulphurous environments and heat-resistant at temperatures up to +1000 °C.
Standards
Chemical composition
Fe is the basis.
According to GOST 2176-77 the chemical composition is given for steel grade 35Х23Н7СЛ. 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.
According to GOST 2176-77 the chemical composition is given for steel grade 35Х23Н7СЛ. 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.