Material determines the service life, load capacity and environmental adaptability of fasteners. Different metals vary greatly in strength, anti-rust performance, temperature resistance and cost. Proper material selection ensures assembly safety and reasonable procurement cost.
Advantages: cost-effective, easy to process, stable strength and complete specifications. Disadvantages: poor anti-rust performance. Application: indoor dry environment, general machinery and cabinets. Surface treatment such as galvanizing is recommended.
Advantages: excellent anti-corrosion, temperature resistance and long service life. Disadvantages: relatively high cost. Application: outdoor equipment, coastal areas, humid conditions, food machinery and medical devices.
Advantages: ultra-high tensile strength and fatigue resistance. Disadvantages: difficult processing and high price. Application: heavy machinery, rail transit, pressure vessels and high-load connections.
Advantages: good conductivity, thermal conductivity, corrosion resistance and sealing performance. Disadvantages: low hardness and limited load capacity. Application: electrical connection, pipeline sealing and anti-magnetic precision instruments.
Choose carbon steel for common indoor use, stainless steel for humid and outdoor environment, alloy steel for heavy load, and copper for conductive & sealing scenarios. Balance performance and cost according to actual demands.