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 |
