BÖHLER E108 is a 4%-Nickel-chromium-molybdenum steel in VAR quality for applications requiring high core strength, high toughness and for bigger dimensions. Hardness in carburized layer above 58 HRC. Service temperature max. 200°C. Non corrosion resistant. Compared to Airmelt and ESR quality the content of non-metalic inclusions and segregation is lower, the toughness properties and the fatigue properties transverse to grain flow direction are better.
| Market grade |
|---|
| S156 |
| C | Si | Mn | P | S | Cr | Mo | Ni | |
|---|---|---|---|---|---|---|---|---|
| 0.14 to 0.18 | 0.1 to 0.35 | 0.25 to 0.55 | max. 0.015 | max. 0.012 | 1 to 1.4 | 0.2 to 0.3 | 3.8 to 4.3 |
