2025-08-08 Hot rolled seamless pipe refers to steel pipes without welded joints produced through hot rolling process. The billet is solid round steel (pipe blank), which is processed into hollow tubular steel through perforation, rolling and other processes after heating. Compared with welded steel pipes, seamless structure is its most prominent feature - the pipeline is formed as a whole without welding seams, fundamentally avoiding stress concentration and weak corrosion points in the welding area, and ensuring safe production in extreme environments such as high pressure, high temperature, and strong corrosion.