Steel A85
Designation
| Name |
The value |
| Designation GOST Cyrillic |
А85 |
| Designation GOST Latin |
A85 |
| Transliteration |
A85 |
| The chemical elements |
- |
Description
A85 steel is used: for the production of bars with special surface finish, a diameter of 1−12 mm, used for the manufacture of parts for watches exposed to the subsequent thermal treatment.
Standards
| Name |
Code |
Standards |
| Sectional and shaped rolling |
В32 |
TU 14-1-3390-82 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
| TU 14-1-3390-82 |
0.8-0.9 |
0.18-0.24 |
0.04-0.08 |
0.4-0.7 |
≤0.25 |
≤0.3 |
≤0.25 |
The rest |
≤0.3 |
Fe is the basis.
According to TU 14-1-3390-82, the chemical composition is given for steel grade A85.
Mechanical characteristics
| Section, mm |
σB, MPa |
| Bars with special surface finish as supplied on the other 14-1-3390-82 |
| 1-4 |
740-980 |
Description mechanical marks
| Name |
Description |
| Section |
Section |
| σB |
Limit short-term strength |
