Carbon Steel Flange 1.Material: Stainless Steel,Carbon Steel ,Alloy Steel 2.Size ... Specification SIZESTANDARDSERIESPRESSURE11/2''-64''ASTM ANSI B16.5, ASA, API-605,etc..slip-on, welding neck, blind, threaded, lap-joint, etc. ... , 2632,2633, 2543, 2544, etcplate, slip-on, welding neck, blind, threaded etc.Class150,300,600,900,150041/2''-64''BS4504 ... need,pls feel free to contact us. Carbon Steel Flange