Spiral Welded Steel Pipe
Spiral Welded Steel Pipe is a spiral seam steel pipe made of strip coil plate, extruded by constant temperature and welded by automatic double-wire submerged arc welding. The spiral steel pipe will send the strip into the welding pipe unit, roll through the multi-channel roll, the strip gradually rolled up to form a circular tube blank with an open gap, adjust the pressure of the extrusion roll, so that the weld gap is controlled in 1~3mm, and the two ends of the welding joint are flush.
Shandong HengdingSheng Steel Co., Ltd. is a professional carbon steel pipe manufacturer with ISO CE certificate and a large factory with a productivity of 500,000 tons per month. We supply from wall thickness 0.5-300mm, including seamless carbon steel pipe and welded carbon steel pipe. Custom sizes available. We have large stocks for fast delivery, and provide free samples and customized services. The main markets are distributed in Europe, North America, South America, Africa, Southeast Asia and Oceania. The company has established stable cooperative relations with customers in more than 100 countries and regions.
Our carbon steel welded pipes are available in sizes ranging from 1/2" to 24" OD with wall thicknesses of SCH10 to SCH80, manufactured from high-quality grades including ASTM A53, API 5L, and ASTM A135. These pipes feature excellent weld integrity and dimensional consistency, making them ideal for low-pressure fluid transportation, structural applications, and fencing systems. Custom lengths (6m-12m) and surface treatments (galvanized, black painted) available upon request.
Our carbon steel welded pipes are manufactured using advanced ERW (Electric Resistance Welding) or LSAW (Longitudinal Submerged Arc Welding) technology, featuring precision forming systems with automatic seam tracking, in-line heat treatment for stress relief, automated ultrasonic testing for weld integrity, and computer-controlled cutting to length. With an annual production capacity of 200,000 tons, we maintain strict wall thickness tolerance of ±10% to ensure consistent product quality.
In order to ensure product quality, we will arrange professional personnel to check product quality, packaging, weight, hardness, etc., according to customer requirements of product specifications, looking for high-quality and cheap cooperative factories in China, to provide customers with one-stop procurement services and quality assurance.
Excellent packaging: waterproof paper and plastic film + iron cover + at least three strapping straps + strapping straps fixed on iron or wood pallets can effectively protect products from corrosion and various climate changes during transportation. Generally speaking, we ship from Shanghai, Tianjin, Qingdao and Ningbo ports. We have worked with many experienced shipping companies for a long time to find the most suitable mode of transportation for you.