St0
for minor construction points and irresponsible details: floorings, fittings, lining, washers, railings, covers, skin and others.
Classification
| Country | Section | Category |
|---|---|---|
| CIS, Russia, Ukraine | Structural steel | Carbonaceous structural steel of ordinary quality |
Chemical composition
| Standard | Fe, % | P, % | C, % | S, % |
|---|---|---|---|---|
| GOST 380-2005 | > 99.64 | < 0.07 | < 0.23 | < 0.06 |
Information on suppliers
Physical characteristics
| Temperature, °C | $$\rho$$, $$\frac{kg}{m^3}$$ |
|---|---|
| 20 | 7850 |
Mechanical properties at 20 °C
| Rolling | Standard | Size, mm | Tension | Classifiers | $$\sigma _{U}$$, $$MPa$$ | $$\epsilon_L$$, % | $$\psi$$, % | Treatment |
|---|---|---|---|---|---|---|---|---|
| Hire | GOST 535-2005 | 300 | 15–18 | |||||
| The plates | GOST 14637-89 | 300 | 20–23 | |||||
| Rod | GOST 30136-95 | 420–470 | 58–68 |
Technological Properties
| Weldability | Flake Susceptibility | Propensity to temper brittleness |
|---|---|---|
| no limits | not sensitive | not inclined |
Analogues
| Germany | USA |
|---|---|
| St33 | A283(A) |
Standards
| Standard | Description |
|---|---|
| GOST 380-2005 | |
| GOST 10298-18 | |
| GOST 10298-79 |
Description of chemical elements
| Element | Units of measurement | Description |
|---|---|---|
| Fe | % | Iron |
| P | % | Phosphorus |
| C | % | Carbon |
| S | % | Sulfur |
Description of physical characteristics
| Parameter | Units of measurement | Description |
|---|---|---|
| $$\rho$$ | $$\frac{kg}{m^3}$$ | The density of the material |
Description of mechanical properties
| Parameter | Units of measurement | Description |
|---|---|---|
| $$\sigma _{U}$$ | $$MPa$$ | Ultimate tensile strength |
| $$\epsilon_L$$ | % | Elongation at break (longitudinal) |
| $$\psi$$ | % | Reduction in cross section on fracture |
Designation of types of weldability
| Parameter | Units of measurement | Description |
|---|---|---|
| no limits | Welding is performed without heating and without subsequent heat treatment | |
| Boundedly welded | Welding is possible with heating up to 100–120 °C and subsequent heat treatment | |
| Difficult to weld | For obtaining quality welded joints, additional operations are required: heating up to 200–300 °C for welding, heat treatment after welding — annealing | |
| Not applicable for welded structures |