This article introduces various types of welded pipes and their characteristics.

Black mild steel pipe has a greater aging tendency, including both quenching aging tendency and deformation aging tendency.

Below we will introduce the piling method of steel pipe piles in detail from several aspects.

Cold-formed steel sheet piles are continuously rolled and formed by a cold-forming unit, and the side locks can be continuously overlapped to form a steel structure with a sheet pile wall.

Hot-rolled steel sheet piles are made of hot-rolled steel plates through shearing, flanging and rolling processes.

Different well conditions and well depths require different steel grades.