Seamless steel pipes for fluids are specially manufactured for transporting liquids, gases, and slurries. Since fluid transportation demands exceptional safety, sealing, and durability, these pipes must comply with strict international standards. These standards define requirements for materials, dimensions, mechanical properties, chemical composition, surface quality, non-destructive testing, and hydrostatic testing. Below is an overview of widely recognized international standards for fluid seamless steel pipes, summarized by Super Steel Manufacturing Co., Ltd.