Steel 20JUA
Designation
| Name |
The value |
| Designation GOST Cyrillic |
20ЮА |
| Designation GOST Latin |
20JuA |
| Transliteration |
20YuA |
| The chemical elements |
20Al |
Description
20JUA steel is used: for the production of sheet metal 2 mm 4−14 category, intended for the manufacture of various parts by cold forming.
Standards
| Name |
Code |
Standards |
| Sheets and stripes |
В23 |
GOST 19903-90, TU 14-1-4632-93 |
| Sheets and stripes |
В33 |
GOST 4041-71, TU 14-106-328-89 |
Mechanical characteristics
| Section, mm |
σB, MPa |
d5, % |
d10 |
Brinell hardness number, MPa |
HRB |
| Sheet metal class 2 heat treated (annealing, normalization, high tempering or normalizing + tempering) in the delivery state according to GOST 4041-71 |
| 4-14 |
340-490 |
≥28 |
≥24 |
≤127 |
≤71 |
Description mechanical marks
| Name |
Description |
| Section |
Section |
| σB |
Limit short-term strength |
| d5 |
Elongation after rupture |
| d10 |
Elongation after rupture |
| HRB |
Rockwell hardness (indenter steel, spherical) |
