The automotive industry is the largest user of spring steel,and China has the world's largest automotive market.With the proposal of national energy conservation and emission reduction,carbon peak and carbon neutrality goals,the lightweighting of traditional fuel vehicles is the trend,and new energy vehicles will inevitably usher in further vigorous development.The chassis of new energy vehicles needs to have greater load-bearing capacity,and chassis system lightweighting is an important component of traditional fuel vehicles.Both aspects require suspension springs to have higher strength and greater load-bearing capacity.In order to meet the development requirements of new energy vehi-cles and lightweight vehicles,Xingcheng Special Steel has developed a 2 100 MPa grade high-strength spring steel.This article combines prac-tical case studies to introduce the impact of key quality indicators such as non-metallic inclusions,decarburization,and segregation on the de-velopment process of 2 100 MPa high-strength suspension spring steel,and proposes corresponding control measures.
维普
万方数据