RQT501是什么材料? 是英国的钢种牌号,老外的介绍是: the rqt range of steels have been developed for applications where high strength and outstanding toughness are necessary, such as mining and quarrying, process industry, material handling, construction and earthmoving. 国内 纪贵主编 《世界标准钢号手册(第2版)》 第850页有详细的成分介绍。 查看更多