1144 steel is a medium-carbon steel distinguished by its exceptional strength and stress resistance. Its strength comes from its higher carbon and manganese content, while its stress resistance is derived from a special treatment process. This treatment improves the steel’s strength and hardness without compromising its ductility and machinability. 1144 steel is ideal for parts frequently exposed to stress and wear, like gears, shafts, and fasteners, particularly where vibration and fatigue resistance are crucial.
| Chemical Properties | |
|---|---|
| Iron | 97.05 – 98.01 |
| Carbon | 0.40 – 0.48 |
| Manganese | 1.35 – 1.65 |
| Phosporus | 0.04 (max) |
| Sulfur | 0.24 – 0.33 (max) |
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