Stainless steel sanitary tubing is selected for process lines where cleanability, material suitability and documented dimensions matter. This category brings together standard-specific tubes for food, beverage, dairy and other hygienic applications. Match the tube to the process medium, cleaning conditions, fittings and required inspection documents rather than relying on a broad “sanitary” label alone.
Start with the specification. Compare ASTM A270, EN 10357 and legacy DIN 11850 references, then confirm grade, outside diameter, wall thickness, finish and connection dimensions. Our standard and dimension compatibility guide lists the details to send with a quotation request.
Need to define the internal or external polish? Use our sanitary tube surface finish and Ra guide to prepare a measurable finish requirement.
For tube-to-tube and tube-to-fitting joints, use the hygienic tube welding and inspection checklist. It addresses installation interfaces rather than repeating this category’s product specifications.
Surface finish and cleaning
The product-contact surface should be specified to suit the process and cleaning procedure. State the internal and external finish separately, including any Ra target and how it will be measured. Mechanical polishing and electropolishing are different options; neither should be assumed from the material grade or the word “sanitary”.
Connections and documentation
For clamp or welded connections, check the tube outside diameter, wall thickness, ferrule or fitting dimensions, gasket material and installation procedure. A tubing standard describes the tube, not the hygienic performance or certification of the completed system. Request the material and inspection documents required for the particular order.
Tubing for hygienic process requirements
Specified Internal Finish
State the required internal Ra value, finish method and inspection record. Cleanability also depends on the installed connections and cleaning procedure.
Grade Selection
Compare 304/304L and 316/316L against the actual process medium, cleaning chemicals and fabrication conditions; confirm the specified grade for each order.
Weld and Bore Review
For welded tubing, specify the weld condition and any internal-bore inspection required by the project. Confirm the agreed inspection scope before production.
Dimension and Fitting Match
Verify outside diameter, wall thickness, tolerance and mating ferrule dimensions on the drawing. Compatibility cannot be assumed from a nominal size alone.
Traceability Documents
State the heat traceability and material test documentation required for the order, including any EN 10204 inspection type, and confirm availability with the quotation.
Packing and Delivery
Agree end protection, packaging, destination and shipment terms in the quotation. Lead time and packing method depend on the ordered specification.
Surface finish specified for the process
Choose the internal and external finish for the process fluid and cleaning regime. Specify the target Ra value, inspection method and any post-fabrication treatment on the inquiry; confirm the achievable result for the quoted tube and connection design.
INTERNAL RA
≤0.25 μm
EXTERNAL RA
≤0.8 μm
PASSIVATION
Citric/HNO3
INSPECTION
Endoscopic
Purpose-built for critical hygiene environments
Food & Beverage Processing
Dairy, brewing, juice and edible-oil lines may require different material grades, surface finishes and connection details. Confirm the applicable food-contact and cleaning requirements for the complete installed system.
Pharmaceutical & Biotech
For WFI, clean steam and process-fluid projects, specify the applicable tube standard, material grade, finish target, weld condition and validation records. Confirm project-specific documentation before ordering.
Cosmetics & Personal Care
For creams, lotions and other viscous products, review bore finish, drainability, joint design and cleaning method to reduce product hold-up. Final cleanability depends on the assembled process line.
Chemical & Fine Chemical
For chemical service, assess 316L or another grade against the actual medium, concentration, temperature and cleaning chemicals. Corrosion resistance cannot be guaranteed from grade designation alone.
Specifications that speak for themselves
Use the technical data below as a starting point for specification review. Confirm the applicable standard edition, dimensional series, grade, finish and inspection requirements against the drawing and quotation before ordering.
Working pressure and temperature are system-design values, not universal ratings for this product range. Confirm them for the chosen OD, wall thickness, material, welds, fittings, fluid and applicable design code. Likewise, EN 10204 inspection documents and any 3-A or food-contact evidence must be specified and confirmed for the particular order.
- Material
- Outer Diameter
- Wall Thickness
- Length
- Internal Ra
- External Ra
- End Connections
- Surface Treatment
- Working Pressure
- Operating Temperature
- Inspection / Regulatory Documents
- AISI 304/304L/316L
- 12.7–304.8 mm (1/2"–12")
- 0.5 mm - 6.0 mm (BWG16-4)
- Up to 6,000 mm (custom on request)
- ≤ 0.4 μm (Ra ≤ 0.25 μm optional)
- ≤ 0.8 μm
- Weld / Clamp / Threaded
- Mechanical polish/Electropolish
- Confirm for the specified tube and system
- Confirm for the process and design code
- Specify and confirm per order