... ,ect out diameter:15-450mm wall thcikness:2-25mm 7003 aluminium pipesouter diameter from 15mm to 450mmwall thickness from 2mm to ... .ASTM-B-241Seamless Extruded Aluminum Alloy Pipe & Tube for General Purpose & Pressure Applications.Manufactured from hollow extrusion ingot (cast in hollow form, or drilled ... ,8011,8014,8021,8050,8150,8079,8090,8A01,8A06, 7003 aluminium pipes