| Alloy | Main Use | Strength | Machinability | Corrosion Res. | Remarks |
|---|---|---|---|---|---|
| AISI 1018 | Brackets, mounts, spacers, interior structural supports | Excellent general-purpose machinability | |||
| AISI 1045 | Axle shafts, suspension components, connecting rods | Balanced strength and machinability | |||
| AISI 1060 | Gears, wear plates, cutting tools, high-load pins | High hardness, wear resistant | |||
| AISI 4140 | Drive shafts, crankshafts, steering knuckles, structural arms | High strength alloy steel |





