Steel 10KH11N23T3MR (ЭП33; ЭЦ696)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
10Х11Н23Т3МР |
| Designation GOST Latin |
10X11H23T3MP |
| Transliteration |
10H11N23T3MR |
| The chemical elements |
10Cr11Н23Ti3MoB |
| Name |
The value |
| Designation GOST Cyrillic |
ЭП33 |
| Designation GOST Latin |
EP33 |
| Transliteration |
EhP33 |
| The chemical elements |
- |
| Name |
The value |
| Designation GOST Cyrillic |
ЭЦ696 |
| Designation GOST Latin |
ETs696 |
| Transliteration |
EhTs696 |
| The chemical elements |
- |
Description
10KH11N23T3MR steel is used: for the manufacture of springs especially for critical applications operating at elevated temperatures; details of special fasteners limited time operation at temperatures up to +700 °C; the details, which are increased requirements for heat resistance.
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 |
| Sectional and shaped rolling |
В22 |
GOST 1133-71, GOST 2590-2006 |
| Classification, nomenclature and general norms |
В30 |
GOST 5632-72 |
| Sectional and shaped rolling |
В32 |
GOST 5949-75, GOST 22411-77, TU 14-1-1239-75, TU 14-1-312-72, TU 14-131-814-90, TU 14-1-3957-85, TU 14-11-245-88, TU 14-1-5162-92 |
| Classification, nomenclature and general norms |
В20 |
OST 1 90005-91 |
| Bulls. Blanks. Slabs |
В31 |
OST 3-1686-90, TU 14-1-1214-75 |
| Thermal and thermochemical treatment of metals |
В04 |
ST ЦКБА 016-2005 |
| Tapes |
В34 |
TU 14-1-1008-74 |
| Metal forming. Forgings |
В03 |
TU 14-1-1530-75, TU 14-1-2902-80, TU 14-1-2918-80, ST ЦКБА 010-2004 |
| Steel wire medium- and high-carbon |
В72 |
TU 14-1-929-74 |
| Steel alloy wire |
В73 |
TU 3-1027-76 |
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 |
≤0.01 |
≤0.02 |
≤0.6 |
10-12.5 |
≤0.6 |
21-25 |
The rest |
≤0.3 |
≤0.8 |
≤0.2 |
≤0.002 |
2.6-3.2 |
1-1.6 |
≤0.2 |
| TU 14-1-5162-92 |
≤0.1 |
≤0.01 |
≤0.025 |
≤0.6 |
10-12.5 |
≤0.6 |
21-25 |
The rest |
≤0.3 |
≤0.8 |
≤0.2 |
≤0.002 |
2.6-3.2 |
1-1.6 |
≤0.2 |
| TU 14-1-929-74 |
≤0.1 |
≤0.01 |
≤0.02 |
≤0.6 |
10-12.5 |
≤0.6 |
21-25 |
The rest |
- |
≤0.8 |
- |
≤0.02 |
2.6-3.2 |
1-1.6 |
- |
Fe is the basis.
According to GOST 5632-72, TU 14-1-312-72, TU 14-1-5162-92 and TU 14-1-2902-80, the chemical composition is given for steel grades Х12Н23Т3МР and 10Х11Н23Т3МР-ВД.
According to TU 14-1-2918-80 the chemical composition is given for steel grades 10Х11Н23Т3МР-ВД.
According to TU 14-1-929-74, the chemical composition is given for steel grades 10Х11Н23Т3МР (Х12Н22ТЗМР; ЭП33), 10Х11Н23Т3МР-ВД (ЭП33-ВД). The content of residual tungsten and copper - according to GOST 5632.
Mechanical characteristics
| Section, mm |
sT|s0,2, MPa |
σB, MPa |
d5, % |
d4 |
y, % |
kJ/m2, кДж/м2 |
Brinell hardness number, MPa |
| Gradation of performance properties of the finished heat-treated parts for OST 1 90005-91 |
| - |
- |
≥1080 |
- |
- |
- |
- |
- |
| - |
- |
≥1180 |
- |
- |
- |
- |
- |
| Blank pieces of pipe fittings and welded assemblies at ST CKBA 016-2005. Quenching in oil with 1090-1110 °C (exposure 1-2 h) + Aging at 770-790 °C (aging 16 h), air cooling + Ageing at 640-660 °C (aging 16 h), air cooling |
| ≤100 |
≥784 |
≥980 |
≥20 |
- |
≥25 |
≥490 |
285-341 |
| Tape supplied on the other 14-1-1008-74 |
| - |
- |
≥740 |
- |
≥25 |
- |
- |
- |
| Forgings, rods, rolled and forged, washers. Quenching with 1100-1170 °C (delay of 2-5 h), air cooling or oil + aged at 750-800 °C (aging from 16 to 25 h), air cooling |
|
≥590 |
≥880 |
≥8 |
- |
≥12 |
≥294 |
255-321 |
| Forgings, rods, rolled and forged, washers. The quenching 950-1050 °C (delay of 2-5 h), cooling in oil + Aging at 730-780 °C (aging 16 HR) + Additional aging at 600-650 °C (aging 10-16 h), air cooling |
|
≥685 |
≥980 |
≥12 |
- |
≥14 |
≥294 |
302-363 |
| Wire nagarebana on the other 3-1027-76 in the delivery condition. Aging at 700-720 °C (maintained for 5 h), air cooling |
| 1 |
- |
≥1370 |
- |
- |
- |
- |
- |
| 1-2 |
- |
≥1130 |
- |
- |
- |
- |
- |
| 1-2 |
- |
≥1320 |
- |
- |
- |
- |
- |
| Wire cold-drawn at THAT 14-1-929-74. Aging at 690-710 °C (maintained for 5 hours), air cooling. In the column of the delivery Condition indicated the degree of work hardening of the wire in % |
|
- |
≥980 |
- |
- |
≥30 |
- |
- |
|
- |
≥1080 |
- |
- |
≥30 |
- |
- |
| Bars with special surface finishing of steel 10KH11N23T3MR-VD (ЭП33-VD) TU 14-1-5162-92. Aging at 690-710 °C (maintained for 5 hours), air cooling. |
|
- |
≥980 |
- |
- |
≥30 |
- |
- |
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 |
| d4 |
Elongation after rupture |
| y |
The relative narrowing |
| kJ/m2 |
Toughness |
Technological properties
| Name |
The value |
| Features of production |
Wire on the other 14-1-929-74 put in cold-worked condition with a degree of autofrettage 20±2 % ("PN") and 40±4 % ("N"). The degree of work hardening is discussed in the order. Before cold deformation wire (workpiece) is subjected to annealing in air with temperature 1090-1110 °C. the Wire comes in a bleached condition. The surface of the wire should be flat and smooth, without cracks, shells, sunsets, wooloowin, scratches delamination and traces of Pererva. Traces the technological lubricant on the surface of the wire are not allowed. Allowed without scale gray color of the surface. On the surface of the wire allowed some small risks, the depth of which does not exceed half the tolerance on the diameter. |
