Designation
Name |
The value |
Designation GOST Cyrillic |
45Х22Н4М3 |
Designation GOST Latin |
45X22H4M3 |
Transliteration |
45H22N4M3 |
By chemical elements |
45Cr22Н4Mo3 |
Name |
The value |
Designation GOST Cyrillic |
ЭП48 |
Designation GOST Latin |
EP48 |
Transliteration |
EhP48 |
By chemical elements |
- |
Description
45KH22N4M3 steel is used: for the manufacture of valves of automobile engines.
Note
Heat-resistant steel and heat resistant austenitic class.
The recommended maximum operating temperature for a long time +850 °C.
Temperature intense scaling in air +950 °C.
Standards
Name |
Code |
Standards |
Classification, nomenclature and General rules |
В30 |
GOST 5632-72 |
Blanks. Of the workpiece. Slabs |
В31 |
OST 3-1686-90 |
Bars and shapes |
В32 |
TU 14-1-1510-75, TU 14-11-245-88 |
Chemical composition
Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
V |
Ti |
Mo |
W |
GOST 5632-72 |
0.4-0.5 |
≤0.03 |
≤0.035 |
0.85-1.25 |
21-23 |
0.1-1 |
4-5 |
Rest |
≤0.3 |
≤0.2 |
≤0.2 |
2.5-3 |
≤0.2 |
Fe is the basis.