We Super Steel Manufacturing Co.,Ltd(SMC) are amongst the top manufacturers and suppliers for the seamless steel pipe, welded steel pipe, OCTG products and fittings from China. We have been manufacturing and supplying these products to the industry since 1993, and received repeat orders and appreciation from our valued customers.
High quality piping products from approved manufacturers.
In order to continuously improve our offerings to our clients, we have consistently improved and upgraded our manufacturing facility and can hence offer material with stringent requirements.
Over the years, Super Steel Manufacturing Co.,Ltd(SMC) has developed an enviable reputation for project management for the Oil & Gas, Construction, Power Energy, Marine & Offshore, Water Treatment, Exploration & Drilling Services, Pipeline & Petrochemical and other heavy industries.
The many years of experience that we have means that there is always someone who has the ability to carry a project forward.
Always up to date. In this column you can find the steel pipe related articles, including industry trends, product standards and materials, and some technical guidelines.
Electric Resistance Welded (ERW) steel pipe is produced by forming hot-rolled coils through a forming machine. The edges of the tube blank are heated and melted using the skin effect and proximity effect of high-frequency currents. These edges are then welded together under the pressure of squeeze rollers to complete the pipe production. Currently, ERW pipes account for approximately 80% of the global welded steel pipe production.
ERW pipes are available in sizes ranging from 1/2 inch to 24 inches and are commonly made from carbon steel (with ASTM A53 being the most widely used specification) and stainless steel (ASTM A312). Key size standards include ASME B36.10 and ASME B36.19, while API 5L is the main reference for welding ERW pipelines.
In recent years, advancements in modern welding technologies, such as High-Frequency Induction (HFI) and High-Frequency Welding (HFW), have made ERW pipes an attractive and cost-effective alternative to seamless pipes. These technological improvements have minimized the performance gap between ERW and seamless pipes, making them interchangeable in certain applications involving medium/low pressure and medium temperatures. Nevertheless, seamless steel pipes retain their advantage in terms of mechanical strength due to the inherent superiority of billets compared to coils and plates.
ERW Steel Pipe Manufacturing Process:
ERW pipes are manufactured from steel coils, which are uncoiled, cut, shaped, welded, and tested in a series of steps to ensure quality and reliability.
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