|Designation GOST Cyrillic||12Х2МФСР|
|Designation GOST Latin||12X2MFCP|
|By chemical elements||12Cr2MoVСB|
12Х2МФСР steel is used: for the manufacture of billets intended for the manufacture of seamless cold, warm, hot-wrought, including hot-pressed and hot-pressed reduced pipes for steam boilers and pipelines, installations with high and supercritical steam parameters and long time operation at temperatures up to +620 °C.
|Bars and shapes||В32||TU 14-1-1529-2003|
|Blanks. Of the workpiece. Slabs||В31||TU 14-1-4992-91|
|Steel pipes and fittings to them||В62||TU 14-3-463-2005, TU 14-3-460-2009, TU 14-3Р-55-2001, TU 14-3-460-2003|
According to TU 14-3R-55-2001, TU 14-1-1529-2003 and TU 14-3-460-2003 for steel made by scrap-process or from cuprous ores, the mass fraction of residual copper and nickel is allowed up to 0.30 % of each. A technological addition of rare earth elements is allowed to improve the quality of the metal.
|Section, mm||sT|s0,2, MPa||σU, MPa||d5, %|
|Tubular billet + hot deformed Tubes (DH=57-465 mm) TU 14-3-460-2003. Normalization at 970-1000 °C, air cooling + Vacation at 750-780 °C (aged for at least 2 hours), air cooling|
|Seamless pipes for steam boilers and pipelines according to TU 14-3P-55-2001. Normalization at 970-1000 °C + Vacation at 750-780 (aged for at least 2 hours), 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|