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. |
