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Steel 12Х2МФА (48ТС-2)

Designation

Name The value
Designation GOST Cyrillic 12Х2МФА
Designation GOST Latin 12X2MFA
Transliteration 12H2MFA
The chemical elements 12Cr2MoV
Name The value
Designation GOST Cyrillic 48ТС-2
Designation GOST Latin 48TC-2
Transliteration 48TS-2
The chemical elements 48TiС-2

Description

12Х2МФА steel is used: for the production of workpieces in the form of forgings, sheets, sheet blanks, the sheet of stamped blanks, Cavanaugh-rolled billets (slabs), used for products of machinery and vessels, working under pressure and within the jurisdiction of the Gosatomenergonadzor.

Standards

Name Code Standards
Bulls. Blanks. Slabs В31 TU 108.131-86

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu As V Mo Co
TU 108.131-86 0.11-0.16 ≤0.02 ≤0.02 0.3-0.6 2-2.5 0.17-0.37 ≤0.4 The rest ≤0.3 ≤0.04 0.25-0.35 0.6-0.8 ≤0.025
Fe is the basis.
According to TU 108.131-86 the chemical composition is given for steel grade 12X2MFA. In the chemical composition, deviations are allowed: carbon ± 0.010%, manganese, silicon, and vanadium ± 0.050% each, chromium ± 0.10%.

Mechanical characteristics

Section, mm sT|s0,2, MPa σB, MPa d5, % y, % kJ/m2, кДж/м2 Brinell hardness number, MPa
Billet heat-treated in the delivery condition on the other 108.131-86
≤160 ≥430 540-735 ≥14 ≥50 ≥490 187-229
≤160 ≥390 ≥490 ≥14 ≥50 - -
≤160 ≥430 540-735 ≥14 ≥50 ≥490 187-229
≤160 ≥390 ≥490 ≥14 ≥50 - -
≤160 ≥530 635-835 ≥13 ≥50 ≥490 207-225
≤160 ≥490 ≥550 ≥12 ≥45 - -

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
y The relative narrowing
kJ/m2 Toughness

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