British Standard BS4504 material standard Specification for Flanges and Bolting for Pipes, Valves, and Fittings. This covers plain, boss, integrally cast or forged, and welding neck type flanges, in ten tables. Although BS 4504 is obsolescent, it remains in use for the dimensions of light duty, economy stainless steel flanges in applications where corrosion resistance and hygiene, rather than high pressures and temperatures, are the primary considerations. BS4504 standard covers Steel Pipe Flanges and Flanged Fittings from DN10 through DN4000 in pressure PN2.5 to PN40.
FLANGE TYPE:
Code 101 Plate flange for welding,Code 102 Loose plate flange with weld- on plate collar or lapped pipe end,Code 104 Loose flange with welding neck collar,Code 105 Blank flange,Code 111 Weld-neck flange,Code 112 Hubbed slip-on flange for welding,Code 113 Hubbed threaded flange,Code 121 Integral,Code 132 Weld-on plate collar,Code 133 Lapped pipe end,Code 134 Weld-neck collar.
MATERIAL:
EN10222-2 P235GH,EN10222-2 P245GH,EN10222-2 P250GH,EN10222-2 280GH,EN10222-2 16Mo3,EN10222-2 13CrMo4-5,EN10222-2 11CrMo9-10,EN10222-2 X16CrMo5-1+NT,EN10222-3 15NiMn6,EN10222-3 13MnNi6-3,EN10222-3 12Ni4,EN10222-3 X12Ni5,EN10222-3 X8Ni9,EN10222-4 P285NH,EN10222-4 P285QH,EN10222-4 P355NH,EN10222-4 P355QH1,EN10222-2 X20CrMoV11-1,EN10222-2 X10CrMoVNb9-1,EN10222-5 X2CrNi18-9,EN10222-5 X2CrNiN18-10,EN10222-5 X5CrNi18-10,EN10222-5 X6CrNi18-10,EN10222-5 X6CrNiTi18-10,EN10222-5 X6CrNiNb18-10,EN10222-5 X6CrNiTiB18-10,EN10222-5 X2CrNiMo17-12-2,EN10222-5 X2CrNiMo17-12-3,EN10222-5 X2CrNiMo18-14-3,EN10222-5 X2CrNiMoN17-11-2,EN10222-5 X2CrNiMoN17-13-3,EN10222-5 X5CrNiMo17-12-2,EN10222-5 X3CrNiMo17-13-3,EN10222-5 X6CrNiMoTi17-12-2,EN10222-5 X2CrNiMoN22-5-3,EN10222-5 X2CrNiMoN25-7-4.
SURFACE TREATMENT:
Epoxy Coated,Coated With Anti-Rust Oil Coating,Transparent paint,Blue Paint,Black Paint,Yellow Paint,Electrogalvanizing,Hot dip galvanizing,Powder coating,Electropolishing,Dacromet.
END FLANGE FACINGS:
Type A Flat face,Type B Raised face,Type C Tongue,Type D Groove,Type E Spigot,Type F Recess,Type G O-ring recess,Type H O-ring groove.
CONNECTION TYPE:
Welding,Threaded,Lap joint.
PRODUCTION TECHNIQUE:
Free forging flange,Die forging flange,Plate cutting flange,Ring rolling forging flange,Casting flange.