... Carbon Steel Flange 1.Material: Stainless Steel,Carbon Steel ,Alloy Steel 2.Size :1/8''-64'' 3.Standard:ANSI.DIN,JIS Carbon ... , 2632,2633, 2543, 2544, etcplate, slip-on, welding neck, blind, threaded etc.Class150,300,600,900,150041/2''-64''BS4504 ... 300,600,900,150051/2''-64''JIS 5K, 10K, 16K, 20K etc.plate, slip-on, blind etc.Class150,300,600,900, ... need,pls feel free to contact us. Carbon Steel Flange