Steel 25Х2МФА (48ТС-1)

Designation

Name The value
Designation GOST Cyrillic 25Х2МФА
Designation GOST Latin 25X2MFA
Transliteration 25H2MFA
By chemical elements 25Cr2MoV
Name The value
Designation GOST Cyrillic 48ТС-1
Designation GOST Latin 48TC-1
Transliteration 48TS-1
By chemical elements 48TiС-1

Description

25Х2МФА 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
Blanks. Of the workpiece. 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 0.22-0.27 ≤0.02 ≤0.02 0.3-0.6 2.5-3 0.17-0.37 ≤0.4 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 25X2MFA. In the chemical composition, deviations are allowed: for carbon -0.010%, for manganese, silicon, and vanadium ± 0.050% for each chromium ± 0.10%.

Mechanical properties

Section, mm sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2 HB, MPa
Billet heat-treated in the delivery condition on the other 108.131-86
≤450 ≥430 540-735 ≥14 ≥50 ≥490 187-229
≤450 ≥390 ≥490 ≥14 ≥50 - -
≤450 ≥430 540-735 ≥14 ≥50 ≥490 187-229
≤450 ≥390 ≥490 ≥14 ≥50 - -
≤450 ≥530 635-835 ≥13 ≥50 ≥490 207-225
≤450 ≥490 ≥550 ≥12 ≥45 - -

Description mechanical marks

Name Description
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
y The relative narrowing
KCU Toughness
HB Brinell hardness number