宝钢汽车排气系统用铁素体不锈钢产品开发

最近几年,随着对全球环境问题的关注,各国都对汽车尾气排放要求给予高度重视以减低对环境的危害。随着汽车燃油的经济性和汽车尾气排放的等级化要求不断提高,排放标准变得更为严厉。因铁素体不锈钢具有良好的耐氧化性、低的热膨胀系数、高的抗腐蚀性能及更为经济的成本,铁素体不锈钢更多用于汽车排气系统零部件。欧美及日本汽车几乎全部使用超纯铁素体不锈钢用于排气系统零部件制造以满足汽车轻量化及严格的尾气排放要求。介绍了汽车排气系统的构成、各部件的性能要求及宝钢汽车用不锈钢的产品开发。

Development of ferritic stainless steels for automotive exhaust systems by Baosteel

In recent years,with more and more attention paid to the global environmental problems,each government focuses on the reduction of exhaust emission to prevent the air pollution.With the higher requirements for the continuous improvement in automotive fuel economy and exhaust purification rate,the restriction standard tends to become severer.Parts of the automotive exhaust system in Europe,the United States and Japan have been made of ultra-purity ferritic stainless steel(FSS) for its low cost and high prope...