Stainless steel strip for flexible hoses
Corrugated, flexible and interlocked stainless steel hoses.
Welded and interlocked flexible hoses
The strip is continuously formed and welded, or profiled and spirally interlocked, to produce flexible and corrugated hoses. They carry gas, water, steam, flue gases and industrial fluids, where flexibility and tightness must go together.
In continuously welded tube, the strip width determines the tube diameter and the edge condition directly affects TIG, plasma or laser weld quality. In interlocked hose, regular width and thickness ensure a uniform, tight lock seam. 3S supplies stainless strip in AISI 304, 316L, 316Ti, 321, 309 and 310S with tight width tolerances to EN or ASTM, clean edges and 100% dimensional control. The bright annealed 2R/BA finish combines formability with a clean surface. Spools with an inner diameter of 50 to 400 mm and weights up to 1500 kg enable continuous production with few interruptions.
Where it is used
- Gas and water connections
- Automotive exhausts and lines
- Industrial plants
- Heating technology and solar thermal
Recommended grades
Supply
| Parameter | Range | Notes |
|---|---|---|
| Typical grades | AISI 304, 316L, 316Ti, 321, 309 and 310S annealed, 2R/BA finish | Other grades on request |
| Thickness | Annealed 0.05 – 0.70 mm Work-hardened 0.05 – 2.50 mm | Typical for this application: 0.15 – 0.40 mm |
| Width | 3 – 1250 mm | Typical: 5 – 300 mm |
| Finishes | Annealed 2R / BA • Work‑hardened 2H | Calibrated mechanical properties |
| Formats | Strip • Narrow strips • Spools • Sheets | Sheets cut to size up to 1000 mm |
| Spools | From 15 kg to 1500 kg | ID 50–400 mm • traverse or parallel winding |
Tolerances according to EN ISO 9445 or customer specification. 3.1 certificates on request.
Frequently asked questions
Request a quoteHow important is width tolerance for welded tube?
Which finish is needed for corrugated and flexible hose?
How can I get a quote?
Tell us the alloy, finish, thickness, width, edge and format (strip/narrow strip/spool) and we will send you a quick quotation.