High-frequency pipe welding equipment is exclusive machine for producing longitudinal welded pipe and cold forming sectional steel in metallurgy, construction, transportation, machinery, vehicles, and other industries. With a certain specifications of the steel strip as raw material, by using the method of cold bending forming and high frequency welding, it can produce pipes of required specifications. It’s applicable for low carbon steel and low alloy steel. Requirements of materials:σb≤520MPa,σs≤345Mpa.