G18NiMoCr36 is hugely strong and resistant to fracture and cracking. The material can be used at temperatures from -40 °C up to +40 °C. It is used to make highly stressed components in gearboxes and transmission systems in vehicles such as trucks, buses and construction site vehicles. It is also a suitable material for manufacturers of systems and equipment which require weldability and good mechanical properties.
This material is categorised as a high-strength steel. It is delivered with a certificate. The special heat treatment process makes this material suitable for parts used in cranes, heavy military vehicles and shipping.
Standards / designations
| EN 10293 (EU) | G 18 NiMoCr 3-6 | ||
|---|---|---|---|
| SEW 520 (DE) | G18NiMoCr36 | ||
| WERKSTOFFNUMMER (DE) | 1.6759 | ||
| ASTM A217 (US) | WC4 | ||
Mechanical properties
| Tensile strength | Rm | 780-930 | [N/mm2] |
|---|---|---|---|
| Permanent limit of elongation | σ 0.2B | 630 | [N/mm2] |
| Elongation | A | 12 | [%] |
| Brinell hardness | HB30 | 270-300 | [Kg/mm2] |
Chemical composition
| Carbon | C | 0.17-0.22 | [%] |
|---|---|---|---|
| Silicon | Si | 0.60 | [%] |
| Manganese | Mn | 0.80-1.20 | [%] |
| Chromium | Cr | 0.40-0.90 | [%] |
| Nickel | Ni | 0.60-1.00 | [%] |
| Molybdenum | Mo | 0.40-0.70 | [%] |
| Iron | Fe | Remainder | |
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