PRODUCTS

316 Marine Stainless Steel Pipe

We supply 316 marine-grade stainless steel pipes, specifically engineered for prolonged exposure to seawater, salt spray, and high-chloride environments. With enhanced molybdenum content (2-3%), this grade delivers exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking, making it the preferred choice for marine, offshore, and coastal applications.
  • Outstanding Seawater Resistance: Proven performance in marine atmospheres, splash zones, and fully submerged conditions with minimal corrosion risk.

  • Enhanced Chloride Tolerance: Superior to standard 304 in resisting pitting and crevice corrosion caused by chlorides and brackish water.

  • Excellent Weldability and Fabricability: Can be welded, bent, and formed using standard marine fabrication techniques without compromising corrosion resistance.

  • Long-Term Durability: Maintains structural integrity and aesthetic appearance in harsh marine environments, reducing maintenance and replacement costs.

Applications
Ideal for seawater intake and discharge pipes, offshore platform piping, shipbuilding pipelines, desalination systems, coastal architectural structures, and marine equipment components.

We provide pipes in various diameters, wall thicknesses, and lengths, with options for cutting, beveling, polishing, and hydrostatic testing. Full material certification compliant with ASTM A312, EN 10216-5, NORSOK M-650, and marine industry standards is included to ensure reliability and traceability.


Product name:316 Marine Stainless Steel Pipe
Production technology:Cold rolling or hot rolling
Steel Grade:200Series;300Series;400Series
Standard:AiSi, ASTM, BS, DIN, GB, JIS , etc.
Length:1000~12000MM,Customizable
Wall Thickness:1mm-150mm,customizable
Outer Diameter:0.5mm-2500mm,customizable
Tolerance:±1%
Sample:Provided Within 3 Days
Application:Industry,Construction, Ship Components
Processing Service:Bending, Welding, Decoiling, Punching, Cutting
Surface:BA/2B/#1/#3/#4/8K/HL/2D/1D/etc. Customizable
Shape:Round; Square; Rectangular; Heterosexual ;Customizable



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

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