The invention discloses a C276 Hastelloy
alloy flange. The C276 Hastelloy
alloy flange comprises an upper
flange body and a lower flange body which are of the same structure, wherein the upper flange body and the lower flange body are fixedly connected through a fixing device, the upper flange body is composed of a flange main body and a sleeve, the flange main body is of a two-layer structure and comprises an
alloy layer and an abrasion-resistant layer which are coaxially arranged, the flange main body is further evenly provided with bolt holes, the sleeve comprises an inner
pipe, an outer
pipe and a middle
pipe which are all coaxially arranged in a sleeving mode, the fixing device comprises a fixing groove containing the upper flange body and the lower flange body, a fixing edge and a fixing pin, holes are formed in the annular periphery of the fixing groove, and a fixing hole is formed in the fixing edge. The invention further relates to a production technology of the C276 Hastelloy alloy flange. The production technology is simple and easy to perform, low in production cost, small in
pollution in the production process, and good in safety, the produced C276 Hastelloy alloy flange has good
corrosion resistance and abrasion resistance, seal
welding performance of the C276 Hastelloy alloy flange and a pipeline is excellent,
assembly and disassembly are convenient, and installing efficiency is improved.