... 3.Material:Carbon steel,Stainless steel Carbon Steel Pipe Flange1), Name:Pipe Flange2), Sizes: 1/2"- 64",15mm - ... ”ASTM ANSI B16.5, ASA, API-605,etc..slip-on, welding neck, blind, threaded, lap-joint, ... 2631, 2576, 2632,2633, 2543, 2544, etcplate, slip-on, welding neck, blind, threaded etc.Class150,300,600 ... ”—64”BS4504, PN16, PN25, PN40, etc.plate, slip-on, welding neck, blind, threaded etc.Class150,300 ...