Steel 10ХН1М (VC-1A)
|Designation GOST Cyrillic||10ХН1М|
|Designation GOST Latin||10XH1M|
|By chemical elements||10CrН1Mo|
|Designation GOST Cyrillic||ВК-1А|
|Designation GOST Latin||BK-1A|
|By chemical elements||WCo-1|
10ХН1М steel is used: for the manufacture of billets, hot rolled and cold drawn seamless pipes, steel plate, used for production of capacitive equipment for chemical, petrochemical and gas industry; tanks hraneniya liquid ammonia; the equipment and pipelines of nuclear power plants.
|Blanks. Of the workpiece. Slabs||В31||TU 14-1-2152-77, TU 14-229-275-88|
|Sheets and strips||В33||TU 14-1-2587-78|
|Classification, nomenclature and General rules||В30||TU 14-143-252-76|
|Steel pipes and fittings to them||В62||TU 14-3-799-79|
According to TU 14-1-2152-77 the chemical composition is presented for steel grade 10HN1M (VK-1A). Permissible deviations in chemical composition: nickel ± 0.10%, chromium +0.10%, molybdenum ± 0.050%. The admixture of titanium in the metal is allowed for its actual content up to 0.050%, which is displayed in the certificate. Residual content of elements in steel - in accordance with the standards of GOST 4543.
According to TU 14-229-275-88 the chemical composition is presented for steel grade 10ХН1М. The maximum deviations in the mass fraction of the elements are according to GOST 19282. No deviations from silicon are allowed.
|Section, mm||sT|s0,2, MPa||σU, MPa||d5, %||KCU, kJ/m2|
|Tubular billet on the other 14-1-2152-77. Normalization with 910±10 °C + High vacation at 670-680 °C|
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|
|Pressure treatment||The degree of deformation of hot-rolled billets according to TU 14-1-2152-77 shall be not less than 4, the degree of deformation produced on the presses must be at least 3.5.|
|Macrostructure and pollution||Macrostructure of steel hot-rolled billets according to TU 14-1-2152-77 controlled on a cross etched templeto should not have shrinkage, porosity, bubbles, cracks, sunsets, bundles, arachnids intergranular cracks, slag inclusions, inversions of the crust and placenow visible to the naked eye. Defects in the macrostructure for Central porosity, phase separation and to the square of the point inhomogeneity of billets to the size of the profile to 100 mm, inclusive, should not exceed 1-th score for each species over 100 mm 2-th points for each type. Pollution steel non-metallic inclusions shall not exceed the maximum score: - sulphides (C) - 3.0 points; - silicates (SC, SP) - 4.0 points; - oxides (OS, OT) - 4.0 points; - silicates, non-deformed (CH) - 3.0 points; - nitrides (NS, NT) - 2.5 points.|