What are the quality inspection standards for Alloy Steel Flange?

The quality inspection standards for Alloy Steel Flange mainly include the following aspects: Material standards Chemical composition: According to ASTM A182 and other standards, the content of carbon, chromium, molybdenum, nickel and other elements in alloy steel flanges is accurately determined using spectroscopic analysis and other methods to ensure compliance with the corresponding material’s chemical
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Process flow of necked butt welding flange

butt-welding-flange
Each flange has its own differences, processing methods, structural structures, molding processes, uses and prices. Only by understanding their differences can you better choose a product that suits you. The necked butt welding flange usually adopts the centrifugal method. The production method of orchid is precision casting. Compared with ordinary sand casting, this type of
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