This standard specifies the external dimensions and allowable deviations of aluminum and aluminum alloy pipes. This standard applies to aluminum and aluminum alloy hot-extruded seamless round tubes, cold-drawn, rolled round tubes and cold-drawn square tubes, rectangular tubes and oval tubes. This standard is not applicable to aluminum and aluminum alloy pipes that are hot-extruded by combination dies. The dimensional deviation of the pipe hot-extruded by the combined die shall comply with the provisions of GB/T14846 "Dimensional Deviation of Extruded Profiles of Aluminum and Aluminum Alloys".
GB/T 4436-1995 history
2012GB/T 4436-2012 Wrought aluminum and aluminum alloy tubes.Dimensions and deviations
1995GB/T 4436-1995 Wrought aluminium and aluminium alloy tubes--Dimensions and deviations