Stainless steel sheet roll-formed into sinusoidal corrugations or trapezoidal ribs, or into standing-seam roofing trays. It is used for roofs and walls that must last without paint in corrosive atmospheres — chemical and fertiliser plants, coastal buildings, animal houses, cold stores — and for architectural roofs where the metal itself is the finish.
Corrugated and profiled stainless sheets are roll-formed from cold-rolled coil, usually 0.5–0.8 mm thick, with a 2B, matt-rolled or embossed finish that limits glare. The profile gives the thin sheet its stiffness: shallow sinusoidal corrugations for walls and small roofs, deeper trapezoidal ribs for longer spans, and standing-seam trays, folded together on site, for architectural roofs.
Stainless roofing is chosen for its life rather than its first cost: it needs no coating, does not chalk or fade, resists most industrial atmospheres and is fully recyclable. Molybdenum grades (316 / 1.4401 / 1.4404) or the more resistant ferritic grades are used near the sea and in chemical plants; 304 is suitable for inland, unpolluted sites. Fixings must be stainless as well, and contact with copper run-off or carbon steel swarf from cutting must be avoided.
In the GCC stainless profiled sheet is used mainly in industrial and coastal plant — desalination, fertiliser and chemical plants — and for feature roofs on airports, mosques and public buildings. It is roll-formed locally from imported coil or imported as finished profiles.
Profiled sheet is ordered by profile (manufacturer's reference or drawing), thickness, grade, finish and cut lengths.
| Region | Standard | What it covers |
|---|---|---|
| Europe | EN 508-3 CEN-CENELEC |
Roofing and cladding products from metal sheet — specification for self-supporting products of stainless steel sheet |
| Europe | EN 14782 CEN-CENELEC |
Self-supporting metal sheet for roofing, external cladding and internal lining — product specification |
| Europe | EN 10088-4 CEN-CENELEC |
Stainless steels — sheet, plate and strip for construction purposes |
| Europe | EN 10088-2 CEN-CENELEC |
Stainless steels — sheet, plate and strip for general purposes |
| USA | ASTM A240/A240M ASTM |
Stainless steel plate, sheet and strip |
Grade equivalents and the standards bodies: Steel grades & standards
Stockist - Distributor · Fabrication · Contractors · Shanghai
Local Steel Mills · Coil Service Center · Stockist - Distributor · Ras Alkhaima
Local Steel Mills · Steel Mills - Agents & Traders · Coil Service Center · Stockist - Distributor · Zhangjiagang
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