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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

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