... PN64 3.Material:Carbon steel,Stainless steel Carbon Steel Pipe Flange1), Name:Pipe Flange2), Sizes: 1/2"- 64",15mm - 1600mm3), Material: Carbon steel, Stainless steel and Alloy steel etc.4), Standard ... as following: SIZESTANDARDSERIESPRESSURE11/2”—64”ASTM ANSI B16.5, ASA, API-605,etc..slip-on, welding neck, blind, threaded, lap- ... , slip-on, blind etc.Class150,300,600,900,1500 Carbon Steel Pipe Flange