... 20#; Stainless steel; Alloy steel Forged Flange Flanges of welding neck, socket welding, threaded, blind, slip on, lap joint are in ... with MSS SP 44 standard.Flanges with long welding neck are from classes 150 to 2500 lbs ... with ANSI B 16.36.Blind, slip on, welding neck flanges are from 6 Bar to 40 Bar ... UNI,AS2129,GOST-128202. Type:Plate,Slip-on,Welding Neck.Thread,Socket weld,Blind3. Size:1/2-78 inch ( ...