Short answer: Food and pharma lines favour 316L stainless for pipe, tanks and process surfaces because it is cleanable, low-carbon and chloride-resistant; 304L serves frames and less aggressive surfaces, duplex and Hastelloy handle aggressive duty, and high-purity copper appears in traditional brewery use. Surface finish and passivation are as important as the alloy.
At a Glance
Why 316L Dominates
Low-carbon 316L resists the chlorides in clean-in-place (CIP) chemicals and welds without sensitising, so it is the default for sanitary pipe and tanks. It is stocked by our Stainless Steel Pipe Supplier and covered by our 316 Properties Guide 그리고 Passivation Guide.
Surfaces, Finish and Passivation
Hygienic surfaces need a smooth, electropolished or 2B/BA finish with no crevices. Finishing and passivation are detailed in our Electropolishing Guide, Surface Finishes Guide 그리고 Surface Treatment Guide; weld quality is checked per our Welded Tube Guide.
Aggressive and Specialty Duty
Duplex 2205 serves aggressive CIP and high-pressure sanitary duty (our Duplex Supplier); Hastelloy C-276 handles corrosive API and biopharma streams (our Hastelloy Supplier). High-purity copper (our Copper Supplier) appears in traditional brewery and stillage use.
Standards and Traceability
Specify the sanitary standard (3A, ASTM A270, EN) and require full traceability; chemistry and tolerances are documented by our Mill Test Certificate Guide 그리고 Tolerances Fits Guide. Avoid galvanic couples with our Galvanic Corrosion Guide.
Get a Quote
Tell HXSCO your requirements and we will respond with a competitive quote and lead time.
자주 묻는 질문
316L is the standard; 304L for less aggressive surfaces.
Prevents weld sensitization and intergranular corrosion.
Yes — it restores the passive film on hygienic surfaces.
For aggressive pharma/API streams beyond stainless.
High-purity copper is used traditionally, e.g. breweries.
Source Hygienic Metal from HXSCO
HXSCO supplies 316L, 304L, duplex and specialty alloys for food and pharma with sanitary finishes and full traceability. Send your standard and spec for a quote.