Marine 316 stainless steel mirror polished tube
Marine 316 stainless steel mirror-polished tubing offers exceptional corrosion resistance. Its resistance to chloride-rich environments and exceptional durability make it an ideal choice for marine components such as handrails, deck fittings, and frames. The mirror finish (also known as an #8 finish) imparts a high-quality aesthetic. Low-carbon versions of 316L stainless steel are favored for their excellent weldability and resistance to intergranular corrosion, preventing corrosion in weld areas.
What is marine-grade 316 stainless steel?
SAE 316 stainless steel is a molybdenum-alloyed steel and the second most common austenitic stainless steel (after 304). It is the preferred steel for marine environments because it resists pitting corrosion better than most other steel grades that do not contain molybdenum.
Stainless Steel 316 Mirror Polished Pipe Specification
Standard : ASTM A554 / ASME SA554
Size : 1/8" NB to 24" NB, 1/4" OD to 24" OD
Surface Finish : Polished Grit 120 - 600, INSIDE ELECTROPOLISHED , OUTSIDE MIRROR FINISH bright etc
Thickness : 1mm to 20mm, SCH 5/5S, 10/10S, 20/20S, 40/40S, 80/80S, 120/120S, 160/160S as per ANSI B36.19/36.10
Length : Up to 6 meters, custom cut lengths
Type : As Welded, EFW, ERW, Seamless, Semi Seamless, Bead Removed
SS TP316 Mirror Polish Pipes Chemical Composition
| Element | SS 316 | SS 316L |
| C | 0.08 max | 0.035 max |
| Mn | 2 max | 2.0 max |
| Si | 1.0 max | 1.0 max |
| P | 0.045 max | 0.045 max |
| S | 0.030 max | 0.030 max |
| Cr | 16.00 - 18.00 | 16.00 - 18.00 |
| Mo | 2.00 - 3.00 | 2.00 - 3.00 |
| N | 67.845 min | 68.89 min |
| Ni | 11.00 - 14.00 | 10.00 - 14.00 |
Mechanical Properties of Stainless Steel 316 Mirror Polish Pipe
| Element | SS 316 / 316L |
| Density | 8.0 g/cm3 |
| Melting Point | 1400 °C (2550 °F) |
| Tensile Strength | Psi – 75000 , MPa – 515 |
| Yield Strength (0.2%Offset) | Psi – 30000 , MPa – 205 |
| Elongation | 35 % |
Why choose 316 stainless steel mirror polished tubing?
Molybdenum Content: The addition of molybdenum significantly improves resistance to pitting and crevice corrosion, which is critical in seawater and other chloride-rich marine environments.
Corrosion Resistance: It offers excellent rust resistance, making it suitable for vessels subject to prolonged submersion.
316L Variants: Low-carbon variants of 316L offer improved weld corrosion protection and are easier to fabricate.
316 Polished Tubing Features:
Aesthetics: The mirror polished finish offers a bright and attractive appearance, making it ideal for visual applications on boats and yachts.
Corrosion Resistance: The smooth polished surface provides additional corrosion protection.
Durability: Polished tubing can withstand high mechanical stresses without losing structural integrity.
Common Marine Applications for 316 Mirror Polished Stainless Steel Tubing
Structural Components: Used for handrails, railings, railings, and furniture.
Frames: Suitable for canopies, wave shields, and other structural frames.
Deck Fittings: Suitable for various fittings and components on vessel decks.
Gnee Steel specializes in the production and sale of a wide range of stainless steel products, including 304, 316, 321, 904, 904L, 2205 Duplex, 2205 Duplex, and 316L stainless steel. Gnee Steel's products are widely used in the kitchen, aerospace, chemical, power, automotive, and nuclear energy sectors. We also provide custom stainless steel solutions tailored to customer needs. For stainless steel pricing or custom alloy solutions, please email ru@gneesteelgroup.com for a quote.
