The ERW steel pipe is made of hot-rolled steel coils that have been put through a process known as cold roll forming. The resulting pipe can have a uniform wall thickness with an allowable amount of variation between -0.25mm and +0.25mm. Its outside diameter also can be accurately machined to a close tolerance. According to the API standard or GB/T9711.1 standard, both ends of the steel pipe are beveled and the pipe is cut to the required length

With a wall thickness being anywhere from 3mm to 18mm, our pipe has what it takes to bear heavy load while delivering exceptional performance. Before leaving factory, each pipe product has to pass the hydrostatic test, ultrasonic test, and radiation test. For any detailed information about our ERW steel pipe, customers can contact our sales representatives at any time. Ordered products will be delivered on time and in the optimum quantities. With our cost and quality advantage, customers are sure to build up a good reputation in their local market, thereby receiving more orders.