How is hot-rolled spiral steel pipe inspected before leaving the factory?

Release date:

2021-02-24

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Steel Pipe Knowledge

After spiral steel pipes are manufactured, it is essential to give full consideration to issues such as delivery, dispatch, and inspection. Compared with the actual production phase, these aspects may seem minor at first glance, yet they play a crucial role and should by no means be overlooked. Consequently, contracts must always be signed upon delivery of spiral steel pipes, which helps ensure the quality of this pipeline material. In fact, many of the advantages of this type of piping material are most clearly reflected in this stage.

　　 Spiral steel pipe After production and manufacturing, it is essential to carefully address challenges related to delivery, distribution, and inspection. Compared with the actual production phase, these aspects may seem minor at first glance, yet they play a crucial role and should by no means be overlooked. Therefore, spiral steel pipes must always be accompanied by a formal contract upon delivery, which helps ensure the quality of this pipeline material. In fact, many of the advantages of this type of pipeline material are most evident in this stage.

　　Weighing is a particularly critical component of the delivery process, requiring careful consideration not only of the specific net weight but also of the weight‑calculation formula for spiral welded steel pipes. During delivery, it is essential to account for the specifications of the net weight and the condition of the pipe material after quenching, as well as factors such as heat treatment, tempering, and quenching. In addition, inspections should be conducted to assess surface irregularities and burrs. Generally, hot‑rolled spiral welded steel pipes are delivered following heat treatment, necessitating rigorous inspection by qualified personnel.

　　Guangxi Nanning Canghai Steel Co., Ltd. specializes in producing straight-seam welded pipes, steel plate‑rolled pipes, large‑diameter steel pipes, spiral pipes, spiral welded pipes, straight‑seam pipes, spiral steel pipes, and steel casing pipes. As a professional manufacturer of spiral pipes, our products are widely used in pipeline systems for natural gas, petroleum, chemicals, power generation, heating, water supply and drainage, sugar production, papermaking, as well as in piling applications and steel support structures for subways.

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