| Name | The value |
|---|---|
| Name | The value |
| Designation GOST Cyrillic | 30ГЛ |
| Designation GOST Latin | 30GL |
| Transliteration | 30GL |
| By chemical elements | 30Mn |
30GL steel is used: for the manufacture of castings for the tool; casings of shock-absorbing units of freight cars.
Steel martensitic class. Wear resistant steel, heat resistant.
| Name | Code | Standards |
|---|---|---|
| Name | Code | Standards |
| Castings with special properties (iron and steel) | В83 | GOST 21357-87 |
| Steel castings | В82 | GOST 977-88 |
| Standard | C | S | P | Mn | Cr | Si | Ni | Fe | Cu |
|---|---|---|---|---|---|---|---|---|---|
| Standard | C | S | P | Mn | Cr | Si | Ni | Fe | Cu |
| GOST 977-88 | 0.25-0.32 | ≤0.04 | ≤0.04 | 1.4-1.7 | - | 0.2-0.5 | - | Rest | - |
| GOST 21357-87 | 0.25-0.35 | ≤0.02 | ≤0.02 | 1.2-1.6 | ≤0.3 | 0.2-0.5 | ≤0.3 | Rest | ≤0.3 |
| Section, mm | sT|s0,2, MPa | σU, MPa | d | y, % | KCU, kJ/m2 |
|---|---|---|---|---|---|
| Section, mm | sT|s0,2, MPa | σU, MPa | d | y, % | KCU, kJ/m2 |
| Hardening in air, 840-860 °C + vacation at 570-610 °C air cooling | |||||
| 100 | ≥481 | ≥628 | ≥16 | ≥20 | ≥235 |
| Normalization at 860-890 °C + vacation at 550-650 °C, air cooling | |||||
| 100 | ≥334 | ≥579 | ≥20 | ≥25 | ≥206 |
| Casting. Quenching in water from 920-950 °C + vacation at 600-650 °C, air cooling (KCU-60) | |||||
| - | ≥490 | ≥660 | ≥10 | ≥20 | ≥3 |
