Carbon Steel Pipe Flange 1.Size:1/2" to 64" 2 ... PN64 3.Material:Carbon steel,Stainless steel Carbon Steel Pipe Flange1), Name:Pipe Flange2), Sizes: 1/2"- 64",15mm - 1600mm3), ... 2631, 2576, 2632,2633, 2543, 2544, etcplate, slip-on, welding neck, blind, threaded etc.Class150,300,600,900,150041/2 ... BS4504, PN16, PN25, PN40, etc.plate, slip-on, welding neck, blind, threaded etc.Class150,300,600,900,150051/2 ...