Stainless steel sanitary tubing is a high purity piping solution specifically engineered for industries where cleanliness and sterilization are paramount. Unlike standard industrial pipes, these tubes feature an ultra-smooth internal bore to prevent bacteria growth and product buildup. They serve as the critical infrastructure for fluid transport in the food and beverage, dairy, brewery, biopharmaceutical, and cosmetic industries.
We provide a full portfolio of sanitary tubing compliant with major global hygienic specifications. This includes the European DIN 11850 and EN 10357 series (Series A, B, C, and D), as well as the American ASTM A270 and 3A standards. We also support ISO 2037 and SMS 3008 for international system compatibility. Our size range covers OD 1/2 inch to 12 inch and DN10 to DN300, matching most global valve and fitting systems.
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Quality begins with the right alloy. Our tubing is primarily manufactured from 304 and 316L austenitic stainless steel. 304 is ideal for standard food grade applications, while 316L (containing Molybdenum) is the preferred choice for pharmaceutical and acidic environments due to its superior resistance to pitting and chemical cleaning agents. Every order is delivered with an EN 10204 3.1 Mill Test Certificate (MTC) to ensure full material traceability and compliance with FDA and GMP requirements.
We offer both welded sanitary tubing and seamless sanitary tubing to meet various pressure and safety needs. Our welded tubes utilize automated TIG or Plasma technology with internal weld bead leveling to ensure a crevice-free interior. For advanced projects, we strictly control the sulfur content (0.005 percent to 0.017 percent) to optimize automated orbital welding performance, providing high-quality and contamination-free joints during field installation.
Surface integrity is the most vital technical indicator for hygienic engineering. We strictly monitor internal roughness to meet ASME B46.1 and DIN requirements. Standard internal surfaces reach Ra 0.8 μm or Ra 0.5 μm. For high purity applications, we provide Electropolished (EP) tubing with a finish of Ra 0.38 μm or better. We also offer Bright Annealing (BA) and various mechanical polishing options to support efficient CIP (Clean-in-Place) and SIP (Sterilize-in-Place) processes.
To guarantee zero-defect delivery, every tube undergoes a rigorous inspection protocol. This includes 100 percent Eddy Current Testing, hydrostatic pressure tests, and dimensional verification. We also perform 100 percent Borescope inspection to confirm the perfection of the internal weld and surface. As a total solution provider, we also supply matching sanitary elbows, tees, and reducers to help you build a complete and reliable hygienic piping system.
Stainless steel tubing is an important component of liquid processing systems. This accessory transports beverages and other fluids from one place to another without corroding or contaminating your product. Our stainless steel tubing is easy to dismantle and clean.
At CSI, we research the quality of each product so you don't have to. That is why we only stock tubing made out of the highest-quality alloys. If your tubing must withstand high acidity or high purity applications, choosing our long-lasting piping will prevent replacement downtime for your equipment.
Our tubing made out of 304 stainless steel best suits industries like the dairy, brewery, and food-processing industries. Although this material is best known for its durability and resistance to corrosion, it is susceptible to damage from acidic material and highly concentrated saline.
We supply stainless steel sanitary tubing / sanitary tube according to major international standards, including DIN 11850, ASTM A270, 3A and ISO 2037. Common size ranges cover OD 1/2"–4" and DN10–DN100, suitable for food, dairy, beverage, brewery and pharmaceutical applications.
304 sanitary tubing is suitable for general food and beverage applications under normal conditions. 316L offers better corrosion resistance due to its Mo content and is recommended for media containing chlorides, weak acids/alkalis, or for pharmaceutical and high‑hygiene processes. You can share your medium, temperature and cleaning method, and we will recommend a suitable 304 / 316L sanitary tube solution.
Lower internal surface roughness means a smoother surface, less product residue and easier cleaning. Ra 0.8 μm is sufficient for most food and beverage industry applications, while Ra 0.6 μm is often used for high‑end dairy and critical pharmaceutical grade sanitary tubing. We can supply various finishes such as BA, 2B, 180 grit, 240 grit, 320 grit.
Welded sanitary tubing is more cost‑effective and widely used in food, beverage, dairy and cosmetics lines. Seamless sanitary tubing provides higher pressure resistance and safety, and is preferred for high‑pressure, high‑purity or critical pharmaceutical lines. Selection depends on pressure rating, medium characteristics and budget; we can help evaluate and choose the right option.
Yes. In addition to stainless steel sanitary tubing, we supply matching sanitary elbows, tees, reducers, ferrules and valves to build a complete sanitary piping system. We can also provide material certificates, pressure test reports and surface roughness reports, and support you with drawing review and technical advice to simplify selection and procurement for your project.
