... welding flange 1,Material: Stainless Steel, Carbon Steel, Alloy Steel 2,Size: From1/8" to 64" 3,Standard: BS,DIN etc Socket-welding ... ~DIN2642 BS4504 BS10 ISO7005-1 EN1092.1 Material: Carbon steel: 20# Q235 A234 WPBTypes: Welding Neck Flanges, Slip on Flanges, Threaded ... , Orifice Flanges, Lap Joint Flanges, Ring Joint Flanges, Long Welding Neck Flanges, Figure 8 Blanks Stainless steel: 304 321 304L ...