At Namo Alloy, we are specialized suppliers of premium Stainless Steel 316 and 316L Sheets, Plates, and Coils. While Grade 304 is the industry standard, Grade 316 is enhanced with 2-3% Molybdenum, providing drastically higher resistance to pitting and crevice corrosion in chloride-rich environments. These flat products are essential for marine hardware, pharmaceutical cleanrooms, and chemical processing tanks. Our 316L (Low Carbon) sheets offer enhanced weldability by preventing sensitisation and intergranular corrosion during heavy fabrication. From industrial No. 1 Mill Finishes to high-end BA and No. 4 Brushed surfaces, our entire inventory is 100% mill-certified to ASTM A240, ensuring unparalleled quality for critical subsea and coastal projects.
| Grade | C (Max) | Mn (Max) | P (Max) | S (Max) | Si (Max) | Cr | Ni | Mo | N (Max) |
|---|---|---|---|---|---|---|---|---|---|
| SS 316 | 0.08 | 2.00 | 0.045 | 0.030 | 0.75 | 16.0 - 18.0 | 10.0 - 14.0 | 2.00 - 3.00 | 0.10 |
| SS 316L | 0.030 | 2.00 | 0.045 | 0.030 | 0.75 | 16.0 - 18.0 | 10.0 - 14.0 | 2.00 - 3.00 | 0.10 |
| Grade | Tensile Strength (MPa) min. | Yield Strength 0.2% Proof (MPa) min. | Elongation (% in 50mm) min. | Hardness (Rockwell B) max. | Hardness (Brinell) max. |
|---|---|---|---|---|---|
| SS 316 | 515 | 205 | 40 | 95 HRB | 217 HBW |
| SS 316L | 485 | 170 | 40 | 95 HRB | 217 HBW |
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Specifications / Standards
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ASTM A240 / ASME SA240 ASTM A480 / A480M DIN 1.4401 / 1.4404 EN 10088-2 UNS S31600 / S31603 |
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Available Forms
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Hot Rolled (HR) Plates Cold Rolled (CR) Sheets Slit Coils & Strips Perforated & Etched Sheets Mirror & Decorative Sheets |
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Thickness Range
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CR Sheets/Coils: 0.3 mm to 6.0 mm HR Plates: 3.0 mm to 150 mm (Custom precision foiling available down to 0.05mm) |
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Standard Dimensions
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Width: 1000mm, 1219mm, 1500mm, 2000mm, 2500mm Length: 2000mm, 2440mm, 3000mm, 6000mm (Cut-to-size plates available via CNC Plasma, Laser, or Waterjet cutting) |
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Surface Finishes
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2B (Matte Finish) No.1 (Industrial Finish) BA (Bright Annealed) No.4 (Brushed Finish) No.8 (Mirror Finish) Hairline / Bead Blasted |
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Hardness Condition
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Annealed (Soft) 1/4 Hard 1/2 Hard Full Hard (Spring Temper) |
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Testing & Certificates
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EN 10204 3.1 MTC ASTM G48 Pitting Corrosion Test IGC Practice A/E (ASTM A262) PMI & Eddy Current Testing Third Party Inspection (TPI) |
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Export Packaging
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Seaworthy Wooden Skids Metal Protectors (Corners) VCI Anti-Rust Paper High-Tensile Steel Strapping |
Namo Alloy is a leading stockist and global exporter of premium Stainless Steel, Carbon Steel, and High Nickel Alloys.
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