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Steel 12Х2МФСР

Steel 12Х2МФСР Steel 15Х1М1Ф 18Kh3MF steel

Designation

Name The value
Designation GOST Cyrillic 12Х2МФСР
Designation GOST Latin 12X2MFCP
Transliteration 12H2MFSR
The chemical elements 12Cr2MoVСB

Description

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.

Standards

Name Code Standards
Sectional and shaped rolling В32 TU 14-1-1529-2003
Bulls. Blanks. Slabs В31 TU 14-1-4992-91
Pipes steel and connecting parts to them В62 TU 14-3-463-2005, TU 14-3-460-2009, TU 14-3Р-55-2001, TU 14-3-460-2003

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu V B Mo
TU 14-3-460-2003 0.08-0.15 ≤0.025 ≤0.025 0.4-0.7 1.6-1.9 0.4-0.7 ≤0.25 The rest ≤0.25 0.2-0.35 0.002-0.005 0.5-0.7
Fe is the basis.
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.

Mechanical characteristics

Section, mm sT|s0,2, MPa σB, 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
20-25 ≥275 490-690 ≥21
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
≥206 - -
≥195 - -
- ≥274 ≥470 ≥21

Description mechanical marks

Name Description
Section Section
sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σB Limit short-term strength
d5 Elongation after rupture

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