What Main Copper Alloy Types Are Used for Casting and Their Features?

Industrial copper castings are mainly divided into cast brass,cast bronze and copper-nickel casting alloys based on different alloying elements.Cast brass takes zinc as the main additive element,featuring great fluidity when melted,easy mold filling and low processing difficulty,suitable for common pipe fittings,general valve bodies and structural connectors.Cast bronze includes tin bronze,aluminum bronze and silicon bronze.Tin bronze has outstanding self-lubrication and wear resistance,ideal for bearings and bushings;aluminum bronze delivers strong resistance against seawater and chemical medium erosion.Copper-nickel alloys maintain stable performance under temperature changes and can resist long-term saltwater corrosion,widely used for marine pipeline accessories and heat exchange components.Each alloy can be matched with heat treatment to adjust hardness,tensile strength and dimensional stability for high-standard working environments.