The production process of welding-neck flanges follow below steps: prepare good steel ingot, heating, forming, cooling after forging. In production, arrange different forging ways accoring to the goods size, batch quantity.
Welding neck flange is mainly of high neck flange rigidity, the bearing capacity is improved. Its purpose is to transfer pipeline pressure.
Our forged steel flanges are made of carbon steel, dimensions are conforming to JIS, ANSI, DIN, BS standards accordingly.
The flanges are suitable for welding. We have many flanges, like Blind, Threaded, Slip On, Welding Neck, Socket Welding, Lap Joint. Sealing methods mainly include Flat Face, Raised Face-.
Size available: 1/2-24" (DN15-DN1500)
Ansi flanges: 150lb-900lbs
EN flanges: PN6-PN40
DIN Flanges: Din 2573, Din2576, Din2502, Din2503, Din2527,
Din2631, Din2632, Din2633, Din2634, Din2635
ANSI flanges: ANSI B16.5
BS flanges: BS10:1962 T/D, BS10:1962 T/E; SABS:1977 600/3-4000/3;SABS:1977 1600/4
EN flanges: EN1092-1
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Product Categories : ANSI B16.5 Flange > 150LB WNRF Flange