BEAD WIRE HAVING LIGHT WEIGHT AND EXCELLENT DRAWABILITY, METHOD FOR PRODUCTION OF THE BEAD WIRE, AND LIGHTWEIGHT TIRE

摘要

A bead wire has a composition of Mn: 5 - 35 at% and Al: 5 - 20 at% and the reminder being Fe and inevitable impurities, in which a steel structure is an austenite single-phase structure, and achieves weight reduction and high ductility without reducing strength.