316 A4 Stainless Steel Flat Bar Metal Plate Strip Width 10MM-80MM Length 100MM

316 stainless steel (A4) contains 2–3% molybdenum, which 304 (A2) does not. This addition significantly improves resistance to chloride-induced pitting and crevice corrosion. For applications near saltwater, swimming pools, or chemical environments, 316 is the more appropriate choice. For general indoor or dry-environment use, 304 is often sufficient and typically lower in cost.

Select thickness based on the load-bearing or structural requirement of your application — thicker bars (8mm–15mm) suit heavy brackets and structural connectors, while thinner bars (3mm–5mm) work well for shims, spacers, and light-duty straps. Width determines the bearing surface area; wider bars distribute load over a greater area. If you are unsure, consult a structural engineer for load-critical applications.

Yes. 316 stainless steel flat bar can be welded using TIG (GTAW) or MIG (GMAW) processes. Use 316L filler wire to minimise carbide precipitation in the heat-affected zone. Post-weld passivation or pickling is recommended for applications in corrosive environments to restore the passive oxide layer.

316 stainless steel is highly resistant to rust and staining in most outdoor environments, including coastal and marine settings. However, no stainless steel is entirely immune — prolonged contact with chloride-rich deposits (such as road salt or seawater pooling in crevices) can cause surface staining over time. Regular rinsing and occasional cleaning with a stainless-safe cleaner will maintain appearance and performance.

Yes, with appropriate tooling. Use HSS or cobalt drill bits rated for stainless steel, apply cutting fluid, and use a slow drill speed with firm pressure. For cutting, an angle grinder with a stainless-rated cutting disc or a metal-cutting bandsaw works well. Avoid using tools previously used on mild steel without cleaning, as embedded iron particles can cause surface rust contamination.

316 stainless steel is widely used in food processing, pharmaceutical, and medical equipment due to its corrosion resistance and ease of cleaning. The mill finish on these bars is not a polished or electropolished surface finish. If a specific surface roughness (Ra value) or certification is required for your application, contact us to confirm suitability before ordering.

Each size is available in 1-piece, 5-piece, and 10-piece packs. Order a single piece if you need to verify fit or dimensions before committing to a larger quantity. The 5-piece and 10-piece packs offer a lower per-piece cost and are suited for batch fabrication, repair stock, or projects requiring multiple identical components.