Designation
| Name |
The value |
| Designation GOST Cyrillic |
10Х15Н27Т3МР |
| Designation GOST Latin |
10X15H27T3MP |
| Transliteration |
10H15N27T3MR |
| By chemical elements |
10Cr15Н27Ti3MoB |
| Name |
The value |
| Designation GOST Cyrillic |
ЭП700 |
| Designation GOST Latin |
EP700 |
| Transliteration |
EhP700 |
| By chemical elements |
- |
Description
10Х15Н27Т3МР steel is used: for the manufacture of parts of aerospace engineering and special equipment.
Note
Steel corrosion and heat resistant high alloy.
Standards
| Name |
Code |
Standards |
| Classification, nomenclature and General rules |
В20 |
OST 1 90005-91 |
| Wire, steel, alloy |
В73 |
TU 14-1-3098-81 |
| Bars and shapes |
В32 |
TU 14-1-4481-88 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Al |
B |
Ti |
Mo |
Ca |
| TU 14-1-4481-88 |
≤0.1 |
≤0.01 |
≤0.02 |
≤0.6 |
14-16 |
≤0.6 |
25-28 |
Rest |
≤0.5 |
≤0.02 |
2.6-3.2 |
1-1.6 |
≤0.1 |
Fe is the basis.
According to TU 14-1-4481-88, the chemical composition is presented for steel grades 10Х15Н27Т3МР (ЭП700) and 10Х15Н27Т3МР-ВД (ЭП700-ВД). Estimated calcium and boron are set by technological instructions and their residual content in the metal is not determined by chemical analysis.
Mechanical properties
| Section, mm |
σU, MPa |
d5, % |
| Gradation of performance properties of the finished heat-treated parts for OST 1 90005-91 |
| - |
≥1180 |
- |
| Bars hot rolled and forged on the other 14-1-4481-88. Quenching in oil from 1000 °C (extract 3 hours) + Ageing at 750 °C (aging 16 h), cooled in oil + Aging at 650 °With (extract 10 h), air cooling |
|
≥1080 |
≥12 |
Description mechanical marks
| Name |
Description |
| σU |
Limit short-term strength |
| d5 |
Elongation after rupture |
Technological properties
| Name |
The value |
| Macrostructure and pollution |
The macrostructure of the steel On the other 14-1-4481-88 on cross etched templeto should not be visible to the naked eye traces of cavities, bubbles, cracks, and slag inclusions. |
| Particularities of production of goods |
On the other 14-1-4481-88 the rods are supplied without heat treatment. |
