SOLID WIRE AND GAS SHIELD ARC-WELDING METHOD

To provide solid wire that can obtain excellent back bead of appearance and obtain weld metal having excellent mechanical performance, without using back shield gas.SOLUTION: Solid wire, which is used in welding steel materials to be welded, at least one of which is a steel material containing 4 mas...

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Bibliographische Detailangaben
Hauptverfasser: ISONO SHINYA, TAKAHASHI ATSUSHI, TAKAUCHI EIRYO
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide solid wire that can obtain excellent back bead of appearance and obtain weld metal having excellent mechanical performance, without using back shield gas.SOLUTION: Solid wire, which is used in welding steel materials to be welded, at least one of which is a steel material containing 4 mass% or more and 10 mass% or less of Cr, contains 0.02 mass% or more and 0.11 mass% or less of C, 0.6 mass% or more and 1.7 mass% or less of Si, 0.2 mass% or more and 1.5 mass% or less of Mn, over 0.005 mass% and 0.030 mass% or less of S, 4.0 mass% or more and 13 mass% or less of Cr, and 0.3 mass% or more and 1.5 mass% or less of Mo, with respect to total mass of the wire, which further comprises 0.030 mass% or less of P, 1.4 mass% or less of Ni, 0.05 mass% or less of Nb, 0.05 mass% or less of V, 0.05 mass% or less of Ti and 0.05 mass% or less of Al, where a remainder is composed of Fe and inevitable impurities.SELECTED DRAWING: None 【課題】バックシールドガスを使用することなく、優れた外観の裏波を得ることができるとともに、優れた機械的性能を有する溶接金属を得ることができるソリッドワイヤを提供する。【解決手段】被溶接鋼材のうち少なくとも一つが、4質量%以上10質量%以下のCrを含有する鋼材である溶接に用いられるソリッドワイヤは、ワイヤ全質量に対して、C:0.02質量%以上0.11質量%以下、Si:0.6質量%以上1.7質量%以下、Mn:0.2質量%以上1.5質量%以下、S:0.005質量%超0.030質量%以下、Cr:4.0質量%以上13質量%以下、Mo:0.3質量%以上1.5質量%以下、を含有し、P:0.030質量%以下、Ni:1.4質量%以下、Nb:0.05質量%以下、V:0.05質量%以下、Ti:0.05質量%以下、Al:0.05質量%以下、であり、残部がFe及び不可避的不純物からなる。【選択図】なし