Frequently Asked Questions
What surface finish is required for sanitary stainless steel tube?
Food-grade sanitary service requires Ra ≤ 0.8 µm (32 µin) internal surface roughness; pharmaceutical/biotech service requires Ra ≤ 0.4 µm (16 µin). TeCarve confirms surface finish values on inspection reports supplied with each order.
Which stainless steel grades are used for sanitary tubing?
Grade 316L is the preferred material for sanitary tubing due to its superior resistance to CIP cleaning chemicals, hot water, and chlorides. Grade 304 is used where chemical exposure is minimal. Both are suitable for food-contact use under applicable regulations (e.g., EU Regulation 1935/2004); specific certification requirements should be confirmed per project.
What standards do TeCarve sanitary stainless steel tubes conform to?
Our sanitary tubes conform to international dimensional and hygienic piping standards including DIN 11850 (European hygienic), SMS 1145 (Scandinavian), ISO 2037, and ASTM A270, with dimensional and surface preparation options designed to align with common industry practices (including 3-A sanitary guidelines). Tri-clamp, butt-weld, and plain ends are available in standard and custom sizes.
What industries require sanitary stainless steel pipe?
Sanitary stainless steel pipe is essential in dairy and milk processing, food and beverage manufacturing, pharmaceutical and biotech production, cosmetics, and any hygienic process using CIP (Clean-In-Place) or SIP (Steam-In-Place) systems.
Can TeCarve supply sanitary fittings and clamps to match the tubes?
Yes. Matching tri-clamp fittings, elbows, tees, reducers, end caps, and gaskets in 316L stainless steel are available. Complete hygienic tube systems with matched fittings can be supplied for one-stop hygienic piping procurement.

