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Sliding flange

Another layer of carbon steel flanges means: flanges produced according to the size and tolerance range required by national standards are different from flanges not produced according to standard sizes, also called second-standard flanges (some people call them non-standard methods). The flange is incorrect), usually some unscrupulous merchants will reduce the thickness and outer diameter of the flange to achieve the purpose of saving materials, and use scrap steel or scrap steel to process the flange.

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American Standard Flange

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Sliding flange

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Product Description

Usually this kind of steel is waste material with substandard chemical composition and mechanical properties. What’s more, the flanges are produced by private steelmaking in black steel plants. The steelmaking technology used in this private steelmaking is outdated and cannot guarantee the mechanical properties and welding properties. From time to time, it may not be possible to weld with the steel pipe, or the steel itself will leak water after welding with cracks and pores. Therefore, try to use carbon steel flanges when purchasing flanges.

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