Sumitomo Metals manufactures a diverse range of pipe and tube which support infrastructure. These products contribute to the development and transportation of energy, including drilling for oil and natural gas, as well as transportation of gas and water.
Seamless pipe is formed by drawing a solid billet over a piercing rod to create the hollow shell. Being seamless makes the pipe stronger in internal pressure or torsion than welded pipe with joints. Thus, thicker pipe can also be manufactured. Based on the use of its properties, seamless pipe is utilized in severe working environments such as drilling for oil and natural gas, power generation, the chemical industry, and mechanical structures. Using its unique manufacturing technologies such as the high toe angle piercer method, Sumitomo Metals manufactures and sells high-quality high-grade pipes and tubes.
Steel plates are pressed to round shape with a U-shaped press and an O-shaped press, and the resulting pieces are joint welded. Large-diameter welded steel pipe is used for pipelines to transport oil and natural gas. Thanks to its high quality, Sumitomo Metals' pipes are indispensable for transportation under extremely severe environments.
Steel sheet is welded by using electric resistant heat to form pipe and tube. Such products are used mainly for gas pipes and water pipes, which help to support people's lives.
