How to choose materials for hardware parts?

Many customers are unsure which material to choose for CNC customization. The wrong choice can affect performance, increase costs, and complicate processing. Simply focus on these three factors. 

1. Select Based on Application Scenarios 

Choose aluminum alloys for lightweighting and heat dissipation; stainless steel for rust and corrosion resistance; brass or red copper for electrical/thermal conductivity; and 45# steel or carbon steel for cost-effective structural load-bearing parts. 

2. Consider Machinability and Cost 

Aluminum is easy to cut, processes quickly, and is affordable. Stainless steel is hard and sticky, leading to longer lead times and higher costs. Copper is prone to deformation, requiring higher precision in fixturing. Always prioritize materials that are easy to process and source if they meet requirements. 

3. Account for Subsequent Surface Finishing 

Different materials suit different finishes: Aluminum is ideal for anodizing and sandblasting; stainless steel for polishing and brushing; and steel for electroplating or blackening. Decide on the finish early to avoid rework or material incompatibility.