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前言抗层状撕裂钢板(简称38公斤级Z向钢)研制,是国家“六·五”期间重大科技攻关项目。这种钢板主要用于制造海上采油平台管节点。由于海上采油平台工作环境恶劣,使用条件苛刻,对钢的性能及冶金质量提出很高
Preface The development of anti-laminar tearing steel (referred to as 38 kg Z-directed steel) is a major scientific and technological project during the “June 5” National Period. This kind of steel plate is mainly used for manufacturing pipe joints of offshore oil production platform. Due to the harsh working conditions of the offshore oil platform and the harsh conditions of use, the performance and metallurgical quality of the steel are very high