Abstract
SWRH72A high carbon steel wire rod is an important raw material for producing automotive bead wire, hose steel wire and steel wire-rope. Based on design of chemical composition, reasonable adjustment and optimization of smelting and continuous casting process, reheating process, rolling process and cooling process etc., Anyang Iron And Steel StockCo., Ltd. produced successfullyΦ 5.5 mm and Φ 6.5 mm high carbon steel wire rod grade SWRH72A by its 100t Converter-High Speed Wire Rod Mill. The results showed that the chemical composition control was narrowrange, centerline segregation was low, production process of trial steel was reasonable. The wire rod was in good mechanical performance with the range of tensile strength deviation of less than 50 MPa for same heat, same nominal diameter and same rolling system, the sorbitic metallographic structure of wire rod reached more than 90%. The performance indexes met the requirements of the bead wire users.
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