Shaanxi Jiade Group Co Ltd · Xi'an, Shaanxi, China
[email protected] +86 29 8959 9018 Mon to Sat 08:30 to 18:00 GMT+8
TP304 and TP316L seamless sanitary stainless steel tubing for food processing
Industry application

Food and Pharmaceutical

Hygienic equipment is judged on what it does not do: it does not shed metal into the product, it does not hold residue in a crevice, and it does not degrade under repeated cleaning. That drives the grade choice toward 316L and,…

What This Sector Is Up Against

Hygienic equipment is judged on what it does not do: it does not shed metal into the product, it does not hold residue in a crevice, and it does not degrade under repeated cleaning. That drives the grade choice toward 316L and, where the process is aggressive, toward 904L and pure nickel.

Pain Points

  • Iron and chromium pick up contaminating a product stream
  • Pitting from chlorinated cleaning water on 304 equipment
  • Surface finish that traps residue and fails a swab test
  • Weld zone corrosion in fabricated tanks and pipework

What Buyers Need

  • 316L pipe, sheet and bar that can be welded without sensitising
  • Polished surfaces specified by grit rather than by description
  • Material that survives frequent cleaning and sterilisation
  • Certificates for equipment that will be qualified

Typical Application Scenarios

  • Dairy, brewing and beverage process piping
  • Pharmaceutical vessels and clean utility lines
  • Food equipment panels in mirror and hairline finish
  • High purity nickel components where alloying elements must not migrate

Delivery Terms for This Sector

  • 1 ton per specification minimum on 304 sheet, shipped 7 days after deposit
  • Plastic protective film on polished and mirror finish sheet
  • Loading at Shanghai by LCL, FCL or bulk
How an order runs

From Enquiry to Container

  1. Step 1

    Specify 316L rather than 316 wherever the part will be welded

  2. Step 2

    Fix the internal surface finish as a grit number, not a word

  3. Step 3

    Supply pickled or polished material with the finish recorded on the certificate

  4. Step 4

    Protect polished surfaces with film through shipping and installation

  5. Step 5

    Issue the mill test certificate with the delivery

FAQ

Food and Pharmaceutical Questions

Why is 316L preferred over 316 for hygienic equipment
316L is the low carbon version and is highly resistant to sensitisation, so a welded tank or pipe keeps its corrosion resistance in the heat affected zone.
Which surface finish should I specify
Specify the grit rather than a word. Hairline is 180 to 240 grit, and mirror is EN 10088-2 2P or ASTM A480 No.8 produced by polishing with successively finer abrasives and buffing.
Can 304 be sterilised
Yes. 304 stainless steel pipe has high corrosion protection, high temperature resistance and the ability to be sterilised, which is why it is used widely in food equipment.
When would a food plant need pure nickel
Where a caustic cleaning or evaporation stream would attack stainless, or where no alloying element may enter the product. Nickel 200 is 99.6 percent commercially pure wrought nickel.
How is polished sheet protected in transit
With plastic protective film, which should be left in place until installation is complete.

Supplying Food and Pharmaceutical

Tell us the medium, the temperature and the standard you work to and the grade recommendation comes back with the quotation.