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Standard stainless steel structural sections and extruded profiles provide essential mechanical framing, support grids, and architectural elements across modern construction, industrial machinery, and marine engineering. Available in hot-rolled, laser-welded, and cold-drawn executions, these austenitic structural shapes offer superior atmospheric corrosion resistance, attractive clean finishes, and outstanding long-term durability with low maintenance overhead.
Explore our comprehensive inventory of standard austenitic stainless steel structural sections and profiles, including equal/unequal angles, channels, H-beams, I-beams, and T-bars in prime grades such as 304/304L, 316/316L, 321, and 310S. Manufactured to ASTM A276, ASTM A479, and EN 10088 standards with complete MTC 3.1 certification.
| Alloy / Grade | UNS / W.Nr. | Alloy Family | Key Property | Primary Environment / Application |
|---|---|---|---|---|
| 304 / 304L | UNS S30400 / S30403 (1.4301 / 1.4307) | 18Cr-8Ni Austenitic | General corrosion resistance & high structural rigidity | Building structural framing, food machinery support grids, architectural cladding frames |
| 316 / 316L | UNS S31600 / S31603 (1.4401 / 1.4404) | Mo-Bearing Austenitic | Enhanced pitting & marine chloride resistance | Coastal architectural structures, marine equipment platforms, chemical processing supports |
| 321 | UNS S32100 / 1.4541 | Ti-Stabilized Austenitic | Intergranular corrosion immunity up to 816°C | Exhaust ducting framing, high-temperature heat exchanger structural supports |
| 310S | UNS S31008 / 1.4845 | High-Cr/Ni Austenitic | Superior high-temp oxidation resistance to 1100°C | Industrial furnace structural beams, thermal processing equipment frames, burner supports |
