Steel 10Х15Н27Т3МР (ЭП700)

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.