... : 1/2"to 72" 3. Material: Carbon steel, stainless steel ANSI B16.5 Carbon Steel Flange long neck flange(1) Flanges Type: Plate Flange, Flat ... Flange, Slip on Flange, Welding Neck Flange, Long Welding Neck ... A694 F42, F46, F48, F50, F52, F56, F60, F65, F70 Stainless steel flanges ASTM A182 F304/304L, F316/316L, F316H, F310, F321 ...