In one of the first uses of AHSS for automotive skin panels, POSCO is supplying Hyundai with an exposed quality advanced high strength steel with 490 MPa minimum tensile strength. Hyundai was able to reduce the mass of the door by 7%, since this higher strength steel allowed for use of a thinner sheet while maintaining dent resistance.

http://www.posco.co.kr/homepage/docs/eng2/jsp/prcenter/news/s91c1010025v.jsp?idx=2103