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Steel 10KH2M (48ТН-1; 12Х2М)

Designation

Name The value
Designation GOST Cyrillic 10Х2М
Designation GOST Latin 10X2M
Transliteration 10H2M
The chemical elements 10Cr2Mo
Name The value
Designation GOST Cyrillic 48ТН-1
Designation GOST Latin 48TH-1
Transliteration 48TN-1
The chemical elements 48TiН-1
Name The value
Designation GOST Cyrillic 12Х2М
Designation GOST Latin 12X2M
Transliteration 12H2M
The chemical elements 12Cr2Mo

Description

10KH2M steel is used: for the manufacture of non-critical parts manufactured by cold stamping and upsetting; of billets for nuclear power plants.

Note

Steel high-temperature alloy.

Standards

Name Code Standards
Tapes В24 GOST 3560-73
Sheets and stripes В23 GOST 5520-79, GOST 19903-74, GOST 19903-90
Metal forming. Forgings В03 TU 108.11.934-87
Sheets and stripes В33 TU 14-1-1093-74, TU 14-1-3409-82
Bulls. Blanks. Slabs В31 TU 14-1-1843-76, TU 14-1-3119-81, TU 14-1-789-73
Sectional and shaped rolling В32 TU 14-1-1901-77
Pipes steel and connecting parts to them В62 TU 14-159-297-2006

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu Al Ti Mo
TU 14-1-3119-81 0.08-0.12 ≤0.02 ≤0.02 0.4-0.7 2-2.5 0.17-0.37 ≤0.3 The rest ≤0.25 - ≤0.1 0.6-0.8
TU 108.11.934-87 0.08-0.12 ≤0.02 ≤0.025 0.4-0.7 2-2.5 0.17-0.37 ≤0.3 The rest ≤0.25 - ≤0.1 0.6-0.8
TU 14-1-1093-74 0.08-0.12 ≤0.03 ≤0.035 0.4-0.7 2-2.5 0.17-0.37 ≤0.3 The rest ≤0.25 - ≤0.1 0.6-0.8
GOST 5520-79 0.08-0.12 ≤0.02 ≤0.02 0.4-0.7 2-2.5 0.17-0.37 ≤0.3 The rest ≤0.2 ≤0.02 - 0.6-0.8
Fe is the basis.
According to GOST 5520-79 in the manufacture of steel scrap-process, the mass fraction of copper should not be more than 0.30%.
According to TU 108.11.934-87, the chemical composition is given for steel grade 10X2M-VD.
According to TU 14-1-3119-81 for steel grade 10X2M deviations in chemical composition are allowed: for carbon -0.010%, for molybdenum ± 0.050%, for vanadium ± 0.050%. The content of impurities of non-ferrous metals (tin, arsenic, lead, zinc, antimony, bismuth) should not exceed the 1 st point of a ten-point scale of spectral analysis. The content of residual elements in steel should be in accordance with GOST 5632.

Mechanical characteristics

Section, mm sT|s0,2, MPa σB, MPa d5, % y, % kJ/m2, кДж/м2
Sheet 2, 3, 16, 18-20 categories, treated in the delivery condition
8-50 ≥295 390-590 ≥20 - ≥980
Steel hot-rolled sheet of 1.0-4.0 mm No of t/o - in the delivery condition (transverse specimens)
- ≥295 ≥390 ≥20 - -
- ≥245 ≥290 ≥15 - -
Forgings and sheets. After the main heat treatment (specimens for forgings: longitudinal, cross)
- ≥195 ≥345 ≥20 ≥55 ≥785
- ≥175 ≥295 ≥15 ≥50 -
- ≥140 ≥255 ≥16 ≥61 -
- ≥275 ≥390 ≥18 ≥50 ≥785
- ≥245 ≥345 ≥15 ≥45 -
- ≥215 ≥295 ≥16 ≥61 -

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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