AISI 309S stainless steel strip
Chromium 21–23%, nickel 12–15%: excellent high‑temperature performance.
Description
AISI 309S (EN 1.4833, X12CrNi23-13) is a high-temperature austenitic stainless steel with about 23% chromium and 13% nickel. This combination provides excellent resistance to oxidation and scaling, as a guide up to 1000 °C in air, together with good structural stability. Its restricted carbon content improves weldability compared with higher-carbon versions. It is used for furnace parts, muffles, heat exchangers, heat shields, burner components and heat-treatment equipment. 3S supplies AISI 309S precision strip in the annealed condition, as strip, narrow strips from 3 mm, spools and sheets in thicknesses from 0.05 to 0.70 mm.
Properties
- High chromium for scaling resistance
- Service in air up to approx. 1000 °C
- Good weldability and toughness
- Supplied annealed in thin gauges
Applications for this grade
Supply
| Parameter | Range | Notes |
|---|---|---|
| Thickness | Annealed 0.05 – 0.70 mm | Other thicknesses on request |
| Width | 3 – 1250 mm | Slitting with sheared or deburred edges |
| 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 quoteIs AISI 309S suitable for welded components?
309S or 310S: which is better?
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.