球罐用BP460钢板及焊接接头断裂韧性试验研究

Experiment Study of Fracture Toughness of BP460 Plate and Welded Joint used for Spherical Tank

宝山钢铁(集团)公司为了满足宝钢三期工程贮氧球罐的需要,自行研制新的高强度压力容器用钢板.经过大量的试验研究工作之后,决定采用正火+回火的工艺路线,按照德国DIN EN10028—92标准生产球罐用BP460钢板.本文对宝钢生产的46mm厚BP460钢板(宝钢命名为BP460)、焊接接头及焊后热处理的钢板进行全面力学性能试验,以便根据试验结果对钢板性能进行综合评价.

Baoshan Iron and Steel (Group) Corporation researches and develops new,high strength pressure vessel plate in order to meet the requirement for oxygen storing spherical tank in its phase 3 project, after large amount of experiment and study, it is decided to use the process route of normalizing plus tempering, to produce BP460 plate used for spherical tank according to German DIN EN 10028-92 standard. This paper carries out an all-round mechanical properties test on plate, welded joint and post-weld heat treated plate of BP460 plate with 46mm in thickness produced by Baosteel (Baosteel calls BP460) so as to make comprehensive evaluation of plate properties.