Calcium cored wire is also called pure Ca cored wire or solid Ca cored wire. The outer layer is wrapped by a steel strip, and the inner layer is filled with Ca-wire or calcium granule according to different needs and is wrapped by edge rolling. Calcium cored wire is suitable for the calcium treatment process of molten steel refining.

It uses a cold-rolled bright steel strip, which is thicker than other types of cored wires. The pure calcium cored wire has a uniform wire diameter, with the advantages of high tensile strength, good toughness, and is not easy to break, which is more conducive to the precise control of the amount of wire feeding. The use of calcium cored wire can effectively reduce production costs.