Standard: GOST 4543
Steel Grade: 30ХГСА
Chemical Requirements Composition, max, %
| Elements | 30ХГСА |
| Carbon | 0.28-0.34 |
| Silicon | 0.90-1.20 |
| Manganese | 0.80-1.10 |
| Chromium | 0.80-1.10 |
| Phosphorus | 0.025 |
| Sulfur | 0.025 |
| Copper | 0.30 |
| Nickel | 0.30 |
Tensile, Impact and Hardness Requirements
| Steel Grade | 30ХГСА |
| Yield Strength, min, N/mm2 | 835 |
| Ultimate Strength,min, N/mm2 | 1080 |
| Elongation, min, % | 10 |
| Contraction, min, % | 45 |
| Shock viscosity KCU, J/cm2 | 49 |
| Brinell Hardness Number, max | 229 |