Designation
Name |
The value |
Designation GOST Cyrillic |
4Х4Н5МК |
Designation GOST Latin |
4X4H5MK |
Transliteration |
4H4N5MK |
By chemical elements |
4Cr4Н5Mo |
Name |
The value |
Designation GOST Cyrillic |
ВКЛ-4М |
Designation GOST Latin |
BKL-4M |
Transliteration |
VKL-4M |
By chemical elements |
WCoBe-4Mo |
Description
4Х4Н5МК steel is used: for the manufacture of casting parts of aviation, accurate methods of casting in ceramic form of constant models.
Note
High-strength structural alloy steel.
Standards
Name |
Code |
Standards |
Classification, nomenclature and General rules |
В20 |
OST 1 90005-91 |
Mechanical properties
σU, MPa |
HRC |
Gradation of performance properties of the finished heat-treated parts for OST 1 90005-91 |
1720-1810 |
49-53 |
Description mechanical marks
Name |
Description |
σU |
Limit short-term strength |
HRC |
Rockwell hardness (indenter diamond spheroconical) |