AT
Classification
| Country |
Section |
Category |
| CIS, Russia, Ukraine |
Steels for special purposes |
Steels for shipbuilding |
Chemical composition
| Standard |
Fe, % |
Si, % |
Mn, % |
Al, % |
As, % |
P, % |
C, % |
S, % |
N, % |
|---|
| GOST 5521-93 |
< 98 |
0.15–0.37 |
0.4–1.1 |
< 0.06 |
< 0.08 |
< 0.04 |
< 0.21 |
< 0.04 |
< 0.008 |
Information on suppliers
Mechanical properties at 20 °C
| Rolling |
Standard |
Size, mm |
Tension |
Classifiers |
$$\sigma _{U}$$, $$MPa$$ |
$$\sigma_{Y}$$, $$MPa$$ |
$$\epsilon_L$$, % |
d5, % |
Treatment |
|---|
| Hire |
GOST 5521-93 |
|
|
|
400–490 |
235 |
22 |
|
|
| Hire |
GOST 52927-2008 |
|
|
|
400–520 |
232 |
|
22 |
|
Standards
Description of chemical elements
| Element |
Units of measurement |
Description |
| Fe |
% |
Iron |
| Si |
% |
Silicon |
| Mn |
% |
Manganese |
| Al |
% |
Aluminium |
| As |
% |
Arsenic |
| P |
% |
Phosphorus |
| C |
% |
Carbon |
| S |
% |
Sulfur |
| N |
% |
Nitrogen |
Description of mechanical properties
| Parameter |
Units of measurement |
Description |
| d5 |
% |
Elongation at break |
| $$\sigma_{Y}$$ |
$$MPa$$ |
Yield strength |
| $$\sigma _{U}$$ |
$$MPa$$ |
Ultimate tensile strength |
| $$\epsilon_L$$ |
% |
Elongation at break (longitudinal) |