STRUCTURAL STEEL PIPE
Founded in 2013, Yantai Xinbaoshang Materials Technology Co., Ltd.
China's leading structural steel pipe manufacturer and supplier
Structural steel pipe is a type of steel tubular product specifically designed to bear high loads and provide stable support, serving as a core load-bearing component in modern construction and infrastructure. It is manufactured through various processes, primarily including seamless rolling (hot-rolled or cold-drawn) and welding (longitudinal seam or spiral seam) technologies, to meet diverse requirements for strength, precision, and economy. Structural steel pipe is renowned for its exceptional strength-to-weight ratio, ensuring structural stability while significantly reducing overall weight and optimizing architectural design. Products can be customized for specific applications, with circular being the most common cross-sectional shape; square, rectangular, and other hollow structural sections (HSS) are also widely used to provide different mechanical properties and aesthetic effects. Surfaces are typically treated with painting, galvanizing, or fire-resistant coatings to enhance corrosion resistance and durability. Due to their outstanding mechanical performance and design flexibility, structural steel pipes are extensively used in industrial plants, commercial buildings, sports stadiums, bridge towers, port machinery, and various types of temporary support structures.
As a leading manufacturer and supplier of structural steel pipe products in China, our products cover most application scenarios in terms of size and standards. Our products strictly comply with international standards such as API and ASTM. If you have any other requirements for product specifications, please feel free to contact us for customization.
| Outer Diameter Range | Seamless pipe:6mm – 1200mm / Welded pipe:21mm – 2500mm |
| Wall Thickness Range | Seamless pipe:2mm – 120mm / Welded pipe:2mm – 48mm |
| Length Range | SRL , DRL , fixed length such as 6m , 12m , etc. |
| Seamless Pipe Standard | API 5L , ASTM A53/A53M , ASTM A106/A106M , ASTM A179/A179M , ASTM A192/A192M , ASTM A210/A210M , ASTM A333/A333M , ASTM A519 , ASTM A524/A524M , EN 10210-1 , EN 10216-2 , EN 10216-4 , EN 10255 , EN 10297-1 , DIN 1692 , DIN 17175 , JIS G 3444 , JIS G 3445 , JIS G 3454/3455/3456 , JIS G 3460 , etc. |
| Welded Pipe Standard | API 5L , ASTM A53/A53M , ASTM A135/A135M , ASTM A178/A178M , ASTM A214/A214M , ASTM A250/A250M , ASTM A333/A333M , ASTM A334/A334M , ASTM A513 , ASTM A671/A671M , ASTM A691/A691M , EN 10210-1 , EN 10217 , EN 10219-1 , EN 10255 , EN 10296-1 , JIS G 3444 , JIS G 3454/3456 , JIS G 3460 , JIS G 3462 , JIS G 3464 , etc. |
We have two pipe product manufacturing bases in Yantai, Shandong Province. One of them, the General Pipe Manufacturing Base, has a history of nearly 70 years and is equipped with five hot-rolling production lines and one cold-drawing production line, with an annual production capacity of up to 500,000 tons. Leveraging our mature production processes and economies of scale, our product range encompasses over 1,000 specifications of pipe products, fully compliant with international standards such as API 5L, ASTM A106, and ASTM A333. While ensuring quality, we also offer a leading price advantage.
Our high-standard pipeline product production base has a stable production capacity of 800,000 tons, primarily producing high-grade steel products such as API 5L X100 PSL2, API 5CT Super 13Cr, and ASTM A335 P91. Our product specifications cover a wide range, with a maximum outer diameter of 20 inches, a wall thickness of up to 70 millimeters, and a single-piece length of up to 36 meters, capable of meeting the demands of steel pipes in various harsh operating conditions.
FAQs
We have no minimum order quantity requirements. Even if you only need one steel pipe or one pipe fitting, we can deliver on time and provide comprehensive services. Please note that certain high-grade steel products may require temporary production scheduling, which may result in minimum order quantity requirements. For specific details, please consult our sales team.
Of course, we provide free samples for products priced below $1,000. You only need to cover the shipping costs. For products priced above $1,000, please contact our sales team to discuss specific fees.
For products that are in stock, we will complete the final processing, quality inspection, packaging, and other steps within two weeks and deliver them as soon as possible according to the shipping schedule. For products that need to be ordered for production, an additional 2-3 weeks of production time will be required depending on the quantity requested.
In addition to providing factory warranty certificates, we can also provide test reports from internationally recognized quality testing agencies such as SGS, TUV, and DNV upon customer request. We are also available to assist third-party testing agencies with process inspections and final inspections prior to shipment.
Of course! Whether it's our own factory, processing plant, or our partners' factories, we welcome you to visit and exchange ideas at any time. If you need our assistance with visa matters, please feel free to contact our sales manager.
We are both a supplier and a manufacturer. We have three processing plants and warehouses, as well as a seamless steel pipe factory. We also collaborate closely with other outstanding steel pipe and pipe fitting factories in China, enabling us to offer a wide range of product specifications and a complete product system.
The delivery of the product is just the beginning of our service. If you encounter any issues during use, please feel free to contact our online customer service team at any time, and we will address the matter promptly. Additionally, we have offices in Hong Kong, Thailand, and Malaysia, enabling us to provide on-site technical support as needed.
Resource integration and supply chain capabilities are our core strengths. We offer a wide range of product specifications and numerous product types. At the same time, our inventory and processing capabilities ensure the fastest delivery times. We also provide professional customized solutions and comprehensive after-sales service.
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A comprehensive supply chain system and resource integration capabilities are our core strengths. By establishing long-term, in-depth partnerships with numerous outstanding factories, we have built a complete product system, ensuring that you can purchase all supporting products in one place, thereby saving a significant amount of time and cost. With our deep understanding of the local market and long-term, stable procurement volume, we are able to provide the highest quality products at the same price point, helping you maintain a competitive edge in the fiercely competitive market.
We have a professional team of more than 20 people and extensive experience in international projects. We can tailor solutions to your specific needs and provide quick quotes. We have three leading steel pipe product processing plants in Yantai, Shandong and Cangzhou, Hebei, which can meet all your deep processing and customization needs.
VIEW MORE Quality is our core principle. All products undergo comprehensive quality inspections before leaving the factory. After being stored in our warehouse, we conduct rigorous secondary quality inspections and can provide specified quality inspection plans according to customer requirements. We ensure that our product quality far exceeds contract standards and international standards.
VIEW MORE With a standing inventory capacity of 35,000 tons and a leading supply chain advantage, we achieve the fastest delivery times in the industry. We have offices in Hong Kong, Thailand, and Malaysia to ensure timely after-sales support for our customers. Our goal is to establish long-term partnerships with our customers, grow together, and create greater value.
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We successfully secured a 500-ton order for seamless steel pipes with our Turkmenistan client. Through efficient land transportation, the shipment was delivered smoothly. The client highly praised our product quality and service, further solidifying our long-term cooperative relationship.
On September 3, 2025, Xinbaoshang Company hosted a warm birthday celebration for Jessica, showcasing our “people-oriented” corporate culture. We wish her both professional and personal success in the coming year!
On September 3, 2025, the military parade marking the 80th anniversary of the victory in the War of Resistance Against Japanese Aggression, held at Tiananmen Square in Beijing, not only highlighted the significant contributions made by the Chinese people in the fight against fascism but also profoundly embodied the spirit of the nation, inspiring us to remember history and look toward the future.
The United States plans to impose a 50% tariff on Indian goods starting August 27. This move stems from India’s imports of Russian oil and may have far-reaching implications for U.S.-India trade relations and the global economy.
We successfully secured a 500-ton order for seamless steel pipes with our Turkmenistan client. Through efficient land transportation, the shipment was delivered smoothly. The client highly praised our product quality and service, further solidifying our long-term cooperative relationship.
On September 3, 2025, Xinbaoshang Company hosted a warm birthday celebration for Jessica, showcasing our “people-oriented” corporate culture. We wish her both professional and personal success in the coming year!
On September 3, 2025, the military parade marking the 80th anniversary of the victory in the War of Resistance Against Japanese Aggression, held at Tiananmen Square in Beijing, not only highlighted the significant contributions made by the Chinese people in the fight against fascism but also profoundly embodied the spirit of the nation, inspiring us to remember history and look toward the future.
The United States plans to impose a 50% tariff on Indian goods starting August 27. This move stems from India’s imports of Russian oil and may have far-reaching implications for U.S.-India trade relations and the global economy.
Our steel pipe products have been widely used in major energy projects around the world, serving international energy giants, including China National Petroleum Corporation, Sinopec, Shell, Total, as well as national oil companies from countries such as Kuwait, Azerbaijan, Abu Dhabi, Qatar, Algeria, and Saudi Arabia. We have accumulated rich experience in international project services.
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