... . 2.Material:Cr25Ni35,HK40,steel 3.ISO9001:2008 Flange is a mechanical part which used for connecting pipe.Flange Type: Welded flange ... 0Mpa), 2500psi (42.0Mpa), b, The public diameter: 6 ~ 4000mm c, Flange structure type: welding, socket welding, threaded connection, loose, butt ... neck flange, socket weld flange with neck , slipon plate flange c, Loose flange, Butt weld ring with loose with neck flange ...