Welding stick material and preparation method thereof

The invention provides a welding stick material which is prepared from the following components in percent by weight: 0.35-0.55wt% of Mn, 15.5-16wt% of Cr, 16-16.5wt% of Mo, less than or equal to 0.3wt% of Co, less than or equal to 0.05wt% of Cu, 5.4-5.8wt% of Fe, 0.15-0.2wt% of V, 3.6-4.2wt% of W, less than or equal to 0.002wt% of O, less than or equal to 0.005wt% of N, less than or equal to 0.005wt% of P, less than or equal to 0.05wt% of Al, less than or equal to 0.02wt% of Ce, less than or equal to 0.08wt% of Mg and the balance of Ni. A wire rod is manufactured by optimizing a smelting process, a heating process of a hammer cogging process, a deforming process and a heating process of a rolling process of the components of the alloy. The welding stick material provided by the inventioncan be applied to construction of LNG storage tanks. The invention also provides a preparation method of the welding stick material. 本发明提供了一种焊丝材料，成分为：0.35～0.55wt％的Mn；15.5～16wt％的Cr；16～16.5wt％的Mo；Co≤0.3wt％；Cu≤0.05wt％；5.4～5.8wt％