Scientific Material Selection for Forged Shafts

The material for forged shafts should be scientifically selected based on working conditions:

Carbon steel (such as 45 steel) is low in cost and has excellent comprehensive performance, making it suitable for most shaft parts. Its strength can be improved through quenching and tempering.

Alloy steel (such as 40Cr, 42CrMo) is resistant to high temperatures and fatigue, making it suitable for heavy-duty or high-speed scenarios, such as mining machinery and automotive drive shafts.

Special materials (such as 30CrMnSi, 34CrNiMo6) are used in extreme environments, such as corrosion resistance, high temperature, or alternating loads, and require optimization of performance in conjunction with heat treatment processes.

Selection requires a comprehensive assessment of load, cost, and process feasibility to ensure the material matches the design requirements.