| 摘要 |
PROBLEM TO BE SOLVED: To provide a welding method for steel by which proper welding work can be performed by suppressing an arc blow with simple work, and to provide an inserting member used for this method. SOLUTION: This welding method for steel by arc welding has a degaussing stage in which magnetic field strength in a groove 2 formed between a base material and another base material is reduced in advance, and a welding stage in which arc welding is performed to the groove 2. In the degaussing stage, the inserting member 4 having a ferromagnetic is inserted in the groove 2 near starting point 3 of welding, and the magnetic field strength at the starting point 3 of welding is localy lowered comparing with other magnetic field strength of parts to be welded. In welding stage, the starting point 3 of welding, where the magnetic field strength is reduced, is welded.
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