... 1.2-1/6 to 21-1/4 2.Welding Neck,Loose,Flat,Blind.Threaded Flange 3.2000psi-15000psi 4.API6A Type B Flange Size1/2 ... SteelA105/RST37.2/C22.8Stainless Steel DIN 17440/1.4301 DIN 17440/1.4306DIN 17440/1.4401 DIN 17440/1.4404 316Ti, ... SS316, SS304L, SS316L , 321 etcAlloy Steel DIN17440/1.4006 DIN 17175/1.7335Rated PressurePN6.0-PN25PaintingBlack, Yellow, Galvanizing, Antirusting oilSealing ...