Steel 10KH11N20T3R (ЭИ696)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
10Х11Н20Т3Р |
| Designation GOST Latin |
10X11H20T3P |
| Transliteration |
10H11N20T3R |
| The chemical elements |
10Cr11Н20Ti3B |
| Name |
The value |
| Designation GOST Cyrillic |
ЭИ696 |
| Designation GOST Latin |
EI696 |
| Transliteration |
EhI696 |
| The chemical elements |
- |
Description
10KH11N20T3R steel is used: for the manufacture of forgings, long products and sheet, turbine disc, ring parts, fasteners, parts of the compressor and the working part of the turbine operating temperatures up to +700 °C.
Note
Steel heat-resistant austenitic class.
The recommended maximum operating temperature for a limited period of operation +700 °C. the Temperature of beginning of intensive scaling in air +850 °C.
Standards
| Name |
Code |
Standards |
| Classification, nomenclature and general norms |
В30 |
GOST 5632-72 |
| Sectional and shaped rolling |
В32 |
GOST 5949-75, TU 14-1-1671-76, TU 14-1-3957-85, TU 14-11-245-88 |
| Bulls. Blanks. Slabs |
В21 |
OST 1 90176-75 |
| Bulls. Blanks. Slabs |
В31 |
OST 3-1686-90 |
| Metal forming. Forgings |
В03 |
TU 14-1-1530-75, TU 14-1-2902-80, TU 14-1-2918-80 |
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 |
≤0.035 |
≤1 |
10-12.5 |
≤1 |
18-21 |
The rest |
≤0.3 |
≤0.8 |
≤0.2 |
0.008-0.02 |
2.6-3.2 |
≤0.3 |
≤0.2 |
| TU 14-1-2902-80 |
≤0.1 |
≤0.02 |
≤0.03 |
≤1 |
10-12.5 |
≤1 |
18-21 |
The rest |
≤0.3 |
≤0.8 |
≤0.2 |
0.008-0.02 |
2.6-3.2 |
≤0.3 |
≤0.2 |
| TU 14-1-1671-76 |
≤0.1 |
≤0.02 |
≤0.035 |
≤1 |
10-12.5 |
≤1 |
18-21 |
The rest |
≤0.3 |
≤0.8 |
≤0.2 |
0.008-0.02 |
2.6-3.2 |
≤0.3 |
≤0.2 |
Fe is the basis.
Mechanical characteristics
| Section, mm |
sT|s0,2, MPa |
σB, MPa |
d5, % |
y, % |
kJ/m2, кДж/м2 |
Brinell hardness number, MPa |
| Cold-rolled sheet. Annealing in air from 1100 °C |
| ≥4 |
- |
≥600 |
≥40 |
- |
- |
- |
| Forgings, rolled steel hot rolled and forged GOST 5949-75 and Forming at OST 1 90176-75. Annealing in air or in oil with 1100-1170 °C (exposure 2 hours) + Aging at 700-750 °C (extract 15-25 h), air cooling |
|
≥590 |
≥880 |
≥10 |
≥15 |
≥294 |
255-302 |
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 |
Physical characteristics
| Temperature |
Е, ГПа |
r, кг/м3 |
l, Вт/(м · °С) |
a, 10-6 1/°С |
| 20 |
160 |
7900 |
152 |
- |
| 400 |
140 |
- |
205 |
199 |
| 500 |
135 |
- |
226 |
203 |
| 600 |
132 |
- |
238 |
211 |
| 700 |
115 |
- |
251 |
218 |
| 800 |
113 |
- |
268 |
216 |
| 900 |
90 |
- |
285 |
213 |
| 100 |
- |
- |
163 |
159 |
| 200 |
- |
- |
175 |
174 |
| 300 |
- |
- |
188 |
188 |
A description of the physical symbols
| Name |
Description |
| Е |
The normal elasticity modulus |
| r |
Density |
| l |
Coefficient of thermal conductivity |
| R |
UD. the resistivity |
