| abstract |
The present invention relates to a welding material for stainless steel laser welding, a laser welded joint using the same, and a welding method therefor. More particularly, the present invention relates to a ferritic stainless steel homogeneous alloy species and an austenitic and ferritic stainless steel heterogeneous alloy type laser welding A laser welded joint using the same, and a welding method therefor. An embodiment of the present invention is a steel sheet comprising, by weight%, 0.02 to 0.1% of C, 0.2 to 1.0% of Mn, 0.2% or less of Si (excluding 0) % Of Ni (excluding 0), Ni: 25 to 55%, balance Fe and other unavoidable impurities, a laser welded joint using the same, and a welding method therefor. According to the present invention, it is possible to prevent the increase in the brittleness due to dilution of the welded portion by proper control of the alloy composition of the welding material, to obtain a laser welded joint having excellent toughness, and further, Material and a welding method therefor. |