Method for manufacturing molybdenum-added high strength steel pipe stabilizer with excellent fatigue properties

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a steel pipe-type stabilizer for use in an automotive suspension device, which comprises: preparing a steel pipe-type stabilizer by adjusting steel components and controlling rolling conditions; / Mm 2 , as well as a method of manufacturing a Mo-added steel pipe-type stabilizer le which is excellent in fatigue characteristics.;In order to achieve the above object, the present invention provides a ferritic stainless steel comprising 0.16 to 0.30% of C, 0.05 to 0.5% of Si, 0.4 to 1.4% of Mn, 0.025% or less of P, 0.02 to 0.13% of Al, 0.35 to 1.5% of Mo, and the balance consisting of Fe and inevitably contained impurities is subjected to finish hot rolling in a temperature range of 850 to 900C, C temperature range to manufacture a hot-rolled steel sheet to form a steel pipe-type stabilizer, then heat the steel sheet at a temperature in the range of 850 to 1000C to cool the steel to a temperature of 420C or less, And a method of manufacturing a steel pipe-type stabilizer.