Flat flange: a connecting part between a pipe and a pipe, attached to the end of the pipe. The flange is lined with bolts to secure the two flanges.Brief introduction:Production standardGB: GB/T9112-2000 (GB9113, 1-2000 ~ GB9123, 4-2000);Ministry of chemical industry standards: HG5010-52 ~ HG5028-58, HGJ44-91 ~ HGJ65-91, HG20592-97 series, HG20615-97 series;Mechanical department standard: JB81-59 ~ JB86-59, JB/T79-94 ~ JB/T86-94, JB/T74-1994;Pressure vessel standard: JB1157-82 ~ JB1160-82, JB4700-2000 ~ JB4707-2000, B16.47A/B, B16.39, B16.
A3 flangeBy making a general carbon steel flange material A3(GB221-63) is defined as: high quality steel; Chinese characters: high; Chinese phonetic alphabet; code name: A.A3 (GB70065) is a common carbon steel.Application: metal structural components, or parts of cyanide carburizing high strength is not necessary; hook, pull rod, coupler, ring, cylinder, gear, bolt, nut, connecting rod, wheel, wedge, cover and welded parts.
A part of a pipe that is joined to the pipe and connected to the end of the pipe. The flange is lined with bolts to secure the two flanges. Gaskets between flanges are what we usually call flanges
