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研制了X70管线钢配套用低硫高韧性焊条。该焊条具有良好的焊接工艺性能 ,焊接接头具有优良的塑性、低温韧性和抗裂性能 ,能满足“西气东输”工程用X70管线钢的焊接要求。
Developed X70 pipeline steel supporting low sulfur high toughness electrode. The electrode has good welding process performance, and the welded joint has excellent plasticity, low temperature toughness and crack resistance, and can meet the welding requirements of the X70 pipeline steel for the “West-East Gas Pipeline Project”.