Carbon Steel Flat Weld Flange
Another layer of carbon steel flange means: according to the size required by the national standard, tolerance range, etc. produced flanges, different from the flange plates not produced according to the standard size, also called the second standard flange (some people call the non-standard flange is incorrect), usually some unscrupulous merchants will reduce the thickness of the flange, the outer diameter of the two dimensions to achieve the purpose of saving materials, and the use of waste steel or scrap steel to process the flange, usually this steel is the chemical composition and mechanical properties of the waste material, and even the black steel mill privately made steel to produce flanges, The steelmaking technology used in this kind of private steelmaking is old and cannot guarantee mechanical properties and welding performance, and it may not be welded with steel pipes when used, or the steel itself has cracks, pores, etc. and will leak water after welding. Therefore, try to choose carbon steel flanges when purchasing flanges.
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