CF3M/SCS16A Large Diameter Seamless Stainless Steel Pipe
Large diameter stainless steel seamless pipe is a kind of hollow section, no joints around the strip of steel. The thicker the wall thickness of the product, the more economical and practical it is, the thinner the wall thickness, its processing costs will rise substantially. The process of the product determines its limited performance. Generally, the precision of seamless steel pipe is low: uneven wall thickness, low internal surface brightness, high measuring cost, and the internal surface and pitting and black spots are not easy to remove; Its detection and shaping must be handled offline. Therefore, it embodies its superiority in high pressure, high strength and mechanical structure materials.
Our stainless steel pipes, crafted from premium grades like 304, 316L, 321, and 2205 duplex, deliver exceptional corrosion resistance, high-temperature stability, and structural integrity. Available via two core manufacturing processes: Seamless (SMLS) pipes (hot-rolled/cold-drawn from solid billets) for high-pressure scenarios like oil/gas pipelines and boilers; and Welded (ERW/TIG) pipes (formed from steel strips then welded) for cost-efficient, medium-pressure applications such as water supply, HVAC, and food processing. Offered in standard diameters with surface finishes (polished, pickled, brushed), each batch comes with MTC, complying with ASTM, ASME, and DIN standards.
Production starts with high-purity stainless steel billets (for seamless) or strips (for welded). Seamless pipes undergo heating, piercing to form hollow shells, then multi-pass rolling/drawing for dimensional accuracy. Welded pipes go through strip uncoiling, forming into tubes, and ERW/TIG welding (with post-weld annealing to eliminate stress). Both lines feature online thickness/diameter monitoring and non-destructive testing (NDT). Full digital control ensures every pipe meets strict standards for performance and consistency.
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.
Q: Are You Manufacture or Trade Company?
A: We are the professional manufacturer of pipeline products located in Tianjin，China. Welcome to contact us and visit our factory before you place orders.
Q: How do you guarantee the quality?
A: We can send free samples to you, we can accept third-party testing.
We also have test certificate, every batch goods will be testing before shipment, and the testing report will delivery to you with your goods.
Q: Can I get free samples?
A: Of course you can. We can produce according to your samples or technical drawings. Contact us by whatsapp or email to get free samples and you will get the sample after 3-7 working days.
Q: What is the MOQ?
A: If you are scheduling to place a small quantity order or trial order, feel free to contact us, we can meet your requirements.
Q: Can you OEM or ODM?
A: Yes, we have a strong developing team. The products can be made according to your request