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研究了厚度规格为20mm、强度级别为700MPa级管线钢的控轧控冷工艺,结果表明:较高的开冷温度既可以保证钢板的强度,又可以得到较好的冲击韧性,钢板的各项性能均比较好。
The controlled rolling and controlled cooling process of pipeline steel with thickness of 20mm and strength grade of 700MPa was studied. The results show that the higher cooling temperature can not only ensure the strength of steel but also get better impact toughness. Performance is better.