Steel 10KH18N3G3D2L (0Х18Н3Г3Д2Л)
|Designation GOST Cyrillic||10Х18Н3Г3Д2Л|
|Designation GOST Latin||10X18H3G3D2L|
|By chemical elements||10Cr18Н3Mn3Cu2|
|Designation GOST Cyrillic||0Х18Н3Г3Д2Л|
|Designation GOST Latin||0X18H3G3D2L|
|By chemical elements||0Cr18Н3Mn3Cu2|
10KH18N3G3D2L steel is used: for the manufacture of castings of blades and welded cavitation-resistant parts of the working parts of hydraulic turbines, operating at pressures not exceeding 80 l/h cross sections up to 300 mm; casting parts, steam, gas turbines and axial compressors.
Kavitatsionnogo steel, corrosion resistant austenitic-ferritic class. Steel 10KH18N3G3D2L has a high resistance to sand erosion in comparison with steel stamps 10KH12NDL.
|Castings with special properties (iron and steel)||В83||GOST 2176-77|
|Steel castings||В82||GOST 977-88, TU 108-978-80|
|Welding and cutting metals. Soldering, riveting||В05||РТМ 108.020.122-78|
According to GOST 2176-77, the chemical composition is given for steel grade 10Х18Н3Г3Д2Л (0Х18Н3Г3Д2Л). 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||d5, %||y, %||KCU, kJ/m2|
|Casting. Normalization at 1070-1100 °C, air cooling + First vacation at 790-810 °C, cooled to 20 °C, + Second vacation at 590-610 °C, air cooling|
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|
|Welding defects||Welding defects of castings after cutting is usually carried out without heating. Welding defects of manual welding is done with electrodes type e-06Х22Н9 (GOST 10052) brand TSL-33. After welding and repair of defects by welding is applied heat treatment.|