Material datasheet
Density and Chemical Composition of Ст3 (general structural) Steel
Reference values for Ст3 (general structural): typical density used in mass estimates, indicative composition limits (mass %), and common naming equivalents. Always confirm against your supplier certificate.
Typical density (calculator)
7,850
kg/m³
International equivalents
- St3ps / St3sp (GOST 380)
- S235JR (different spec, similar use)
Chemical composition (reference, mass %)
| Element | Typical limits |
|---|---|
| C | ≤0.22 |
| Mn | ≤0.9 |
| Si | ≤0.05 |
| S | ≤0.05 |
| P | ≤0.04 |
| Fe | Balance |
Composition bands are simplified summaries for orientation; they are not a substitute for EN, ASTM, GOST, or mill limits on your order.