Submerged arc welding wire and preparation method thereof

The invention relates to the technical field of welding wires, in particular to a submerged arc welding wire and a preparation method thereof. Reasonable design and combination are conducted on chemical composition percentage of raw material compositions, and particularly an adjusting mode of the chemical compositions in the preparation process is combined, so that microcosmic chemical reactions happen among the chemical compositions, the quality of the prepared submerged arc welding wire is improved, and the prepared submerged arc welding wire has the advantages of being high in corrosion resistance property, high in strength, good in toughness and strong in welding condensation resistance capacity; particularly, the low temperature impact property of the prepared submerged arc welding wire can reach 67 MPa at the temperature of 40 DEG C below zero, the tensile strength of the prepared submerged arc welding wire is higher and can reach over 602 MPa, appearance observation is conducted on the prepared submerged arc welding wire after welding joints are processed, the formed appearance is attractive, and the harmful defects of cracks, overlaps, undercut and the like do not exist.