Designation
| Name |
The value |
| Designation GOST Cyrillic |
25пс |
| Designation GOST Latin |
25pc |
| Transliteration |
25ps |
| By chemical elements |
25 |
Description
Steel 25Ps used: for the manufacture of sheet metal, 1−2 mm 4−14 category, intended for cold forming.
Standards
| Name |
Code |
Standards |
| Sheets and strips |
В23 |
GOST 19903-90 |
| Sheets and strips |
В33 |
GOST 4041-71 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
N |
As |
| GOST 4041-71 |
0.22-0.27 |
≤0.04 |
≤0.04 |
0.25-0.5 |
≤0.25 |
≤0.03 |
≤0.25 |
Rest |
≤0.3 |
≤0.006 |
≤0.08 |
Fe is the basis.
According to GOST 4041-71, the mass fraction of carbon up to 0.30% and silicon up to 0.080% are allowed in finished rolled products.
Mechanical properties
| Section, mm |
σU, MPa |
d5, % |
d10 |
HB, MPa |
HRB |
| Rolled sheet 1-2 categories of heat-treated (annealing, normalization, high tempering or normalizing + tempering) in the delivery state according to GOST 4041-71 |
| 4-14 |
370-540 |
≥27 |
≥23 |
≤138 |
≤76 |
Description mechanical marks
| Name |
Description |
| σU |
Limit short-term strength |
| d5 |
Elongation after rupture |
| d10 |
Elongation after rupture |
| HB |
Brinell hardness number |
| HRB |
Rockwell hardness (indenter steel, spherical) |
