Steel 10KH11N20T2R (ЭИ696А)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
10Х11Н20Т2Р |
| Designation GOST Latin |
10X11H20T2P |
| Transliteration |
10H11N20T2R |
| The chemical elements |
10Cr11Н20Ti2B |
| Name |
The value |
| Designation GOST Cyrillic |
ЭИ696А |
| Designation GOST Latin |
EI696A |
| Transliteration |
EhI696A |
| The chemical elements |
- |
Description
10KH11N20T2R steel is used: for the production of hot-rolled steel plate; parts of turbine; solid-rolled rings for different purposes.
Note
Steel heat-resistant austenitic class.
The recommended maximum operating temperature for a limited period of work — +700 °C. the Temperature of beginning of intensive scaling in air +850 °C.
Standards
| Name |
Code |
Standards |
| Sheets and stripes |
В23 |
GOST 19904-90 |
| Sheets and stripes |
В33 |
GOST 5582-75, TU 14-1-1747-76, TU 14-1-2114-77, TU 14-1-5103-92 |
| Classification, nomenclature and general norms |
В30 |
GOST 5632-72 |
| Sectional and shaped rolling |
В32 |
OST 1 92049-76, TU 14-1-1671-76, TU 14-11-245-88 |
| Bulls. Blanks. Slabs |
В31 |
OST 3-1686-90, OST 1 90407-91, TU 14-1-1214-75 |
| Metal forming. Forgings |
В03 |
TU 14-1-2902-80, TU 14-1-2918-80 |
| Welding and cutting of metals. Soldering, riveting |
В05 |
TU 14-1-997-2012 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
Al |
V |
B |
Ti |
Mo |
W |
| TU 14-1-2918-80 |
≤0.1 |
≤0.02 |
≤0.03 |
≤1 |
10-12.5 |
≤1 |
18-21 |
The rest |
≤0.3 |
≤0.4 |
≤0.2 |
≤0.008 |
2.3-2.8 |
≤0.3 |
≤0.2 |
| TU 14-1-1671-76 |
≤0.1 |
≤0.02 |
≤0.03 |
≤1 |
10-12.5 |
≤1 |
18-21 |
The rest |
≤0.3 |
≤0.4 |
≤0.2 |
≤0.008 |
2.3-2.8 |
≤0.3 |
≤0.2 |
| TU 14-1-1747-76 |
≤0.1 |
≤0.02 |
≤0.03 |
≤1 |
10-12.5 |
≤1 |
18-21 |
The rest |
≤0.2 |
≤0.5 |
- |
≤0.008 |
2.3-2.8 |
- |
- |
| GOST 5632-72 |
≤0.1 |
≤0.02 |
≤0.03 |
≤1 |
10-12.5 |
≤1 |
18-21 |
The rest |
≤0.3 |
≤0.8 |
≤0.2 |
≤0.008 |
2.3-2.8 |
≤0.3 |
≤0.2 |
| TU 14-1-5103-92 |
≤0.1 |
≤0.02 |
≤0.03 |
≤1 |
10-12.5 |
≤1 |
18-21 |
The rest |
- |
≤0.5 |
- |
≤0.008 |
2.3-2.8 |
- |
- |
Fe is the basis.
According to TU 14-1-5103-92 the chemical composition is given for 10Х11Н20Т2Р (ЭИ696А). Boron, cerium and zirconium are introduced into the metal by calculation and chemical analysis are not determined. At the request of the consumer, the steel is supplied with a boron content of 0.003-0.005%.
Mechanical characteristics
| Section, mm |
sT|s0,2, MPa |
σB, MPa |
d5, % |
y, % |
kJ/m2, кДж/м2 |
Brinell hardness number, MPa |
| Ring forged in OST 1 92049-76. Annealing in air or in oil with 1100-1170 °C (exposure 2 hours) + Aging at 700-750 °C (extract 15-25 h), air cooling |
| 25 |
≥440 |
≥780 |
≥11 |
≥12 |
≥294 |
241-302 |
| Sheet as supplied. Aging at 710-730 °C (exposure 8 h), air cooling |
| 4-11 |
≥590 |
≥980 |
≥20 |
- |
- |
- |
| Hot-rolled sheet. Quenching in water, in air or under water shower with 1020-1060 °C |
| 4-11 |
- |
≤740 |
≥35 |
- |
- |
- |
| Sheet as supplied. Aging at 710-730 °C (exposure 8 h), air cooling |
| 4-11 |
- |
≥590 |
≥10 |
- |
- |
- |
| Hot rolled sheet (of 1.5-3.9 mm) and cold rolled (0,7-3,9 mm) steel according to GOST 5582-75. Quenching in water or air with 1020-1060 °C |
| 0.8-3.9 |
- |
≤740 |
≥35 |
- |
- |
- |
| Sheet as supplied. Aging at 710-730 °C (exposure 8 h), air cooling |
| 0.8-3.9 |
- |
≥980 |
≥20 |
- |
- |
- |
| Hot rolled sheet (of 1.5-3.9 mm) and cold rolled (0,7-3,9 mm) steel according to GOST 5582-75. Annealing in air or in water 1020-1060 °C + Aging at 710-730 °C (exposure 8 h), air cooling |
|
- |
≥590 |
≥10 |
- |
- |
- |
| Sheet as supplied. Aging at 710-730 °C (exposure 8 h), air cooling |
| 0.8-3.9 |
- |
≥590 |
≥10 |
- |
- |
- |
| Hot rolled sheet (of 1.5-3.9 mm) and cold rolled (0,7-3,9 mm) steel according to GOST 5582-75. Annealing in air or in water 1020-1060 °C + Aging at 710-730 °C (exposure 8 h), air cooling |
|
- |
≥960 |
≥20 |
- |
- |
- |
| Forgings and rolled steel. Heating to 1100-1170 °C (exposure 2 hours), air cooling or oil + Aging at 700-750 °C (extract 15-25 h), air cooling |
|
≥440 |
≥780 |
≥15 |
≥15 |
≥290 |
241-302 |
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 |
