This standard specifies the contract content, requirements, test methods, inspection rules and signs, packaging, transportation, storage, etc. of aluminum and aluminum alloy extruded bars. This standard applies to aluminum and aluminum alloy extruded round rods, square rods (referred to as square rods) and regular hexagonal rods (referred to as hexagonal rods).
GB/T 3191-1998 history
2019GB/T 3191-2019 Extrusion rods and bars of aluminium and aluminium alloys
2011GB/T 3191-2010 Aluminium and aluminium alloys extruded bars, rods
1998GB/T 3191-1998 Extrusion rods and bars of aluminium and aluminium alloy