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Steel 25Х3МФА-

Steel 15Kh5M (X5M) 30Cr3MA steel 30Kh3VA steel Steel 25X5M Steel 25Kh3MFA-A Steel 25Kh3MFA (48TS-4) Steel 25Kh2MFA (48TS-1) Steel 25Kh2M1F (EI723) Steel 25Х1МФ (ЭИ10) Steel 20Х3МВФ (ЭИ415) Steel 20Х1М1Ф1ТР (EP182) Steel 18Kh3MV (EI578) Steel 18Kh2MFA-A Steel 18Kh2MFA (48TS-3) 15CrM Steel Steel 15X5VF (X5VF) Steel 15X5 (X5) Steel 15Kh2MFA-A Steel 15Kh2MFA (48TS-3-40) Steel 13X9M (X9M) Steel 13Х3Н3М2ВФБ (VKS-10) 12XM steel Steel 12Kh8VF (1Kh8VF) Steel 12X8 (1X8) Steel 12Kh2MFA-A Steel 12Х2МФА (48ТС-2) Steel 12Kh1MF (12KhMF; 12KhMFA) 12MX steel Steel 08Х16Н9М2

Designation

Name The value
Designation GOST Cyrillic 25Х3МФА-А
Designation GOST Latin 25X3MFA-A
Transliteration 25H3MFA-A
The chemical elements 25Cr3MoVN-

Description

Steel 25Х3МФА AND 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 Sn Sb Co
TU 108.131-86 0.22-0.27 ≤0.015 ≤0.012 0.3-0.6 2.8-3.3 0.17-0.37 ≤0.4 The rest ≤0.1 ≤0.01 0.25-0.35 0.6-0.8 ≤0.005 ≤0.005 ≤0.025
Fe is the basis.
According to TU 108.131-86 the chemical composition is given for steel grade 25X3MFA. In the chemical composition, deviations are allowed: for carbon -0.010%, for manganese, silicon, and vanadium ± 0.050% for each chromium ± 0.10%. In steel, the total content of phosphorus, antimony, and tin should not be more than 0.015%. Additional determination of the content of zinc, lead and bismuth is carried out. The results of the determination are not delivery, but are recorded in the certificate.

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
≤600 ≥430 540-735 ≥14 ≥50 ≥490 187-229
≤600 ≥390 ≥490 ≥14 ≥50 - -
≤600 ≥430 540-735 ≥14 ≥50 ≥490 187-229
≤600 ≥390 ≥490 ≥14 ≥50 - -

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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