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Steel SV-12Х2НМА

Designation

Name The value
Designation GOST Cyrillic Св-12Х2НМА
Designation GOST Latin Cb-12X2HMA
Transliteration Sv-12H2NMA
The chemical elements 12Cr2НMo

Description

Steel SV-12Х2НМА used: for the production of forged billets intended for rolling on the welding wire used for the manufacture of rods of welding electrodes for welding of alloyed hromonikelemolibdenovyh steels alloyed heat-resistant steels of the VNL-3M, 30KHGSA and their combinations among themselves in lower and vertical positions.

Standards

Name Code Standards
Welding and cutting of metals. Soldering, riveting В05 TU 14-1-4177-86
Bulls. Blanks. Slabs В31 TU 14-1-4390-87

Chemical composition

Standard C S P Mn Cr Si Ni Fe Mo Ce
TU 14-1-4390-87 0.09-0.16 ≤0.015 ≤0.015 0.3-0.7 1.9-2.4 0.4-0.8 0.8-1.2 The rest 0.35-0.6 0.04
Fe is the basis.
According to TU 14-1-4390-87 and TU 14-1-4177-86 the chemical composition is presented for steel grade Sv-12X2NMA-VI of vacuum induction smelting. Cerium is introduced into the metal by calculation and chemical analysis is not determined. Permissible deviation by mass fraction of manganese ± 0.10%.

Technological properties

Name The value
Macrostructure and contamination The macrostructure of the workpiece on the other 14-1-4390-87 should not have traces of shrinkage, podsadecki porosity, voids, subcortical bubbles, cracks, non-metallic foreign microflute, placenow, delaminations, scabs, visible without using the magnifying devices.

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