Steel 12H18N10E (ЭП47)

Designation

Name The value
Designation GOST Cyrillic 12Х18Н10Е
Designation GOST Latin 12X18H10E
Transliteration 12H18N10E
By chemical elements 12Cr18Н10Se
Name The value
Designation GOST Cyrillic ЭП47
Designation GOST Latin EP47
Transliteration EhP47
By chemical elements -

Description

12H18N10E steel is used: for the manufacture of various parts and structures of sheet and strip, welded by spot welding, pipes and parts thereof; parts of aircraft; products subjected to heat treatment (hardening).

Note

Corrosion-resistant austenitic class.

Standards

Name Code Standards
Tape В34 GOST 4986-79
Sheets and strips В33 GOST 5582-75, TU 14-1-3402-82
Classification, nomenclature and General rules В30 GOST 5632-72
Blanks. Of the workpiece. Slabs В31 OST 3-1686-90
Bars and shapes В32 TU 14-1-2926-80, TU 14-11-245-88

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu V Ti Mo W Se
GOST 5632-72 ≤0.12 ≤0.02 ≤0.035 ≤2 17-19 ≤0.8 9-11 Rest ≤0.3 ≤0.2 ≤0.2 ≤0.3 ≤0.2 0.18-0.35
Fe is the basis.

Mechanical properties

Section, mm σU, MPa d5, % d4
Cold-rolled steel strip of 0.05-2.00 mm according to GOST 4986-79. Quenching in water or air from 1050-1080 °C (samples)
0.2-2 ≤740 - ≥35
0.2 ≤740 - ≥18
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 from 1050-1080 °C
≤740 ≥35 -

Description mechanical marks

Name Description
σU Limit short-term strength
d5 Elongation after rupture
d4 Elongation after rupture

Technological properties

Name The value
Weldability Welded joints made by other methods, in addition to spot welding, prone to intergranular corrosion.
Corrosion resistance For corrosion resistance of steel 12H18N10E comparable to the steel 12KH18N9 brand, but has the best machinability on the machines.