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Overlay welding flange
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Structure and Materials: The base materials are usually chosen from carbon steel, alloy steel, pipeline steel, etc., providing basic strength and pressure resistance. The overlay materials include stainless steel, nickel-based alloys, duplex stainless steel, etc., which endow the flange with special properties such as corrosion resistance and high-temperature resistance. For example, in the petroleum and petrochemical fields, using carbon steel for the base layer and stainless steel for the overlay can ensure the strength of the flange while resisting medium corrosion.Execution Standards: Common execution standards include GB/T9112 - 9125, GB/T29168.3, HG/T20592 - 20635, ASME B16.5, ASME B16.47, etc. These standards specify the dimensions, technical requirements, and testing methods for cladding flanges, ensuring product quality and interchangeability.Application Fields: In the oil and gas industry, used for transporting corrosive oil and gas media; in water supply engineering, to prevent flanges from being corroded by water; in the chemical industry, to handle the transport of various corrosive chemical materials.
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