large-k8凯发官网

1 main use:  large-line energy-welding high-strength steel plates for large-scale  petroleum storage tanks are mainly used for the construction of  large-scale floating-top oil storage tanks. they are the main raw  materials for the construction of large-scale oil storage tanks at home  and abroad, requiring high strength, high toughness and excellent the  welding performance, especially with large-line energy welding  performance, has a high low-temperature impact toughness in the heat  affected zone of the steel plate under the condition of input line  energy ≤100kj/cm.
2 grades and standards: product grade: jgr610e, equivalent to 12mnnivr, spv490q
the  steel grade consists of jg, r, the specified tensile strength minimum  and the english letters representing the characteristics of the steel.  the "jg" is the "ji" character of jigang group co., ltd. and the  high-intensity "high" chinese pinyin head. write the letter, "r" refers to the first letter of the chinese pinyin of the pressure container "容". in the case of large line energy characteristics, the english first letter "e" is used.
3 technical conditions of supply
3.1 product specifications: 12～50×1800～3100×6000～30000

3.3 mechanical properties

3.4 welding  performance: after 50-100kj/cm large-line energy welding, the tensile  strength is above 610mpa, and the average value of impact work at -15°c  is ≥47j, and the single value is ≥33j.
3.5 delivery status: online quenching tempering.
executive standard: gb19189-2003 "quenched and tempered high-strength steel plate for pressure vessels"
           q/lys 222-2006 "high-strength steel plate for large-line energy welding"