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Material of prestressed steel strand

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Aug 28,2023

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The prestressed steel strand is mainly made of high carbon steel cold drawing, with trace phosphide and lubricant residue on the surface. When the strength is particularly high (such as 2300 MPa), it is necessary to add alloying elements such as chromium, and galvanized high-strength products can increase the silicon content. Some prestressed steel strands made of carbon steel have coating materials on the surface, such as zinc, zinc-aluminum alloy, epoxy resin, grease and high-density polyethylene sheath. Stainless steel can also be used to make prestressed steel strands, using high-strength duplex stainless steel.

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