Application tips for butt-welded pipe flanges with necks.

Applicable standards for butt-welded steel pipe flanges with necks: HG20594-1997 of the Ministry of Chemical Industry, national standard GB/T9116.1-2000—GB/T9116.4-2000, American standard ANSIB16.5, HG20616-1997 of the Ministry of Chemical Industry, national standard GB/T9116.1-2000—GB/T9116.4-2000.

Flange type: flat welding flange, butt welding flange, loose flange, socket welding flange, threaded flange

Sealing surface type: full plane, convex surface, concave and convex surface, tongue and groove surface, annular sealing surface

Implementation standards: national standard, American standard (ANIS), Japanese standard (JIS), British standard (BS), German standard (DIN), etc.

Product material: carbon steel, stainless steel, alloy steel

Product use: petroleum gas pipeline engineering, natural gas pipeline engineering, chemical plants, power plants, shipyards, pharmaceuticals, dairy products, beer, beverages, water conservancy, etc.

Note: Carbon steel: 20#, A3, 20G, 16Mn, ASTM A234, ASTM A105, etc. Stainless steel: ASTMA403, 1Cr18Ni9Ti, 0Cr18Ni9, 00Cr19Ni10, 00Cr17Ni14Mo2, 304, 304L, 316, 316L, etc.

Alloy steel: 16MnR, Cr5Mo, 12Cr1MoV, 10CrMo910, 15CrMo, 12Cr2Mo1, A335P22, St45.8/Ⅲ, A10bB