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介绍宝钢三期工程建设中开发的细晶粒高强度钢P460NL1在氧气球罐上应用之前 ,所进行的有关钢材和焊条的性能试验和评定。试验结果表明 :不仅P460NL1钢具有优良的综合力学性能和断裂韧性 ,而且采用GJB60 6RH焊条施焊的焊接接头也具有良好的力学性能和断裂韧性
This paper introduces the performance test and evaluation of the steel and welding rod carried out before the application of P460NL1 fine grain steel developed in the third phase of Baosteel project. The test results show that not only P460NL1 steel has excellent mechanical properties and fracture toughness, but also welded joints with GJB60 6RH welding rod also have good mechanical properties and fracture toughness