GB/T 5231-2001

This standard specifies the chemical composition limits for wrought copper and copper alloys, along with the permissible forms of wrought products such as plates, sheets, strips, tubes, rods, and wires. It is applied in the metallurgy and materials industries for quality control, procurement, and manufacturing of semi-finished copper-based materials used in electrical, construction, and mechanical engineering sectors. The standard ensures consistent material properties and facilitates trade by defining acceptable composition ranges and product shapes for industrial processing.