PRODUCTS

904L Stainless Steel Pipe

We supply 904L stainless steel pipes, a high-alloy super austenitic stainless steel tubing engineered for extreme corrosive environments. With elevated chromium, nickel, molybdenum, and copper content, this grade delivers exceptional resistance to sulfuric acid, phosphoric acid, chloride solutions, and mixed acids, making it the preferred choice for critical chemical, marine, and energy applications.
  • Exceptional Acid and Chloride Resistance: Outstanding performance in sulfuric, phosphoric, and organic acids, as well as seawater and chloride-rich media, with high resistance to stress corrosion cracking.

  • High-Alloy Composition: Contains ≥20% chromium, ≥24% nickel, ≥4.5% molybdenum, and 1.0–2.0% copper for superior durability in aggressive conditions.

  • Weldability and Formability: Can be welded and formed using standard austenitic stainless steel techniques, with low carbon content (≤0.02%) minimizing intergranular corrosion risk.

  • Thermal and Mechanical Stability: Maintains strength and corrosion resistance across a wide temperature range, suitable for both low and elevated temperature service.

Applications
Ideal for chemical processing piping, seawater desalination systems, offshore platforms, sulfuric acid production equipment, pharmaceutical piping, and pollution control scrubbers.

We provide pipes in various diameters, wall thicknesses, and lengths, with options for cutting, beveling, polishing, and non-destructive testing. Full material certification compliant with ASTM A312, EN 10216-5, NORSOK M-650, and related international standards is included.


Product name904L Stainless Steel Pipe
Production technologyCold rolling or hot rolling
Steel Grade200Series;300Series;400Series
StandardAiSi, ASTM, BS, DIN, GB, JIS , etc.
Length1000~12000MM,Customizable
Wall Thickness1mm-150mm,customizable
Outer Diameter0.5mm-2500mm,customizable
Tolerance±1%
SampleProvided Within 3 Days
ApplicationIndustry,Construction, Ship Components
Processing ServiceBending, Welding, Decoiling, Punching, Cutting
SurfaceBA/2B/#1/#3/#4/8K/HL/2D/1D/etc. Customizable
ShapeRound; 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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