Life detection

Hollow section steel with length far greater than diameter or perimeter. According to the cross-sectional shape, it is divided into circular, square, rectangular and special-shaped steel pipes; according to the material, it is divided into carbon structural steel pipes, low-alloy structural steel pipes, alloy steel pipes and composite steel pipes; according to the use, it is divided into conveying pipelines, engineering structures, thermal equipment, petrochemical industry, machinery manufacturing, geological exploration, high-pressure equipment, etc.; according to the production process, it is divided into seamless steel pipes and welded steel pipes, among which seamless steel pipes are divided into hot-rolled and cold-rolled (drawn), and welded steel pipes are divided into straight-seam welded steel pipes and spiral-seam welded steel pipes.

Hollow section steel with length far greater than diameter or perimeter. According to the cross-sectional shape, it is divided into circular, square, rectangular and special-shaped steel pipes; according to the material, it is divided into carbon structural steel pipes, low-alloy structural steel pipes, alloy steel pipes and composite steel pipes; according to the use, it is divided into conveying pipelines, engineering structures, thermal equipment, petrochemical industry, machinery manufacturing, geological exploration, high-pressure equipment, etc.; according to the production process, it is divided into seamless steel pipes and welded steel pipes, among which seamless steel pipes are divided into hot-rolled and cold-rolled (drawn), and welded steel pipes are divided into straight-seam welded steel pipes and spiral-seam welded steel pipes.

Hollow section steel with length far greater than diameter or perimeter. According to the cross-sectional shape, it is divided into circular, square, rectangular and special-shaped steel pipes; according to the material, it is divided into carbon structural steel pipes, low-alloy structural steel pipes, alloy steel pipes and composite steel pipes; according to the use, it is divided into conveying pipelines, engineering structures, thermal equipment, petrochemical industry, machinery manufacturing, geological exploration, high-pressure equipment, etc.; according to the production process, it is divided into seamless steel pipes and welded steel pipes, among which seamless steel pipes are divided into hot-rolled and cold-rolled (drawn), and welded steel pipes are divided into straight-seam welded steel pipes and spiral-seam welded steel pipes.

Hollow section steel with length far greater than diameter or perimeter. According to the cross-sectional shape, it is divided into circular, square, rectangular and special-shaped steel pipes; according to the material, it is divided into carbon structural steel pipes, low-alloy structural steel pipes, alloy steel pipes and composite steel pipes; according to the use, it is divided into conveying pipelines, engineering structures, thermal equipment, petrochemical industry, machinery manufacturing, geological exploration, high-pressure equipment, etc.; according to the production process, it is divided into seamless steel pipes and welded steel pipes, among which seamless steel pipes are divided into hot-rolled and cold-rolled (drawn), and welded steel pipes are divided into straight-seam welded steel pipes and spiral-seam welded steel pipes.