Polished 316 Stainless Steel Round Tube for Railing

316 stainless steel is super resistant to rust, making it perfect for both indoor and outdoor use, especially in humid areas or places close to the coast. Its polished finish gives it that smooth, shiny look that adds a modern touch to any space — whether it’s for home staircases, commercial buildings, or outdoor railings by the pool or balcony. Our 316 Stainless Steel Round Tubes come in different sizes and thicknesses, so you can easily pick the right one to match your project needs.

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Chemical composition of 316 Stainless Steel Round Tubes

316 stainless steel exhibits excellent corrosion resistance, especially in harsh environments such as saltwater, chlorides, acids, or alkalis. This is primarily due to its high nickel and molybdenum content—molybdenum, in particular, helps it resist corrosion caused by chlorides, such as those found in seawater.

Element	Content Range
Iron (Fe)	Balance
Chromium (Cr)	16.0% - 18.0%
Nickel (Ni)	10.0% - 14.0%
Molybdenum (Mo)	2.0% - 3.0%
Manganese (Mn)	Max 2.0%
Silicon (Si)	Max 1.0%
Carbon (C)	Max 0.08%
Phosphorus (P)	Max 0.045%
Sulfur (S)	Max 0.03%
Nitrogen (N)	Max 0.10%

What Sizes of Polished 316 Stainless Steel Round Tubes Can We Provide for You?

Whether you need tubing for residential stair railings, commercial balustrades, or coastal outdoor installations, we can provide the right size and thickness to match your design and performance needs. Here are some of our commonly used dimensions for your reference.

Available Outer Diameters (OD):

From small decorative sizes like Φ12.7mm (1/2″) and Φ25.4mm (1″), up to larger structural sizes such as Φ50.8mm (2″), Φ76.2mm (3″), and even bigger diameters upon request.

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316 Stainless Steel Round Tube Thickness

Wall Thickness Options:

Common thicknesses include 1.0mm, 1.2mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, and more — depending on your strength and application requirements.

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Standard Lengths:

Typically supplied in 5.8m or 6m lengths, with custom cutting available to meet your exact project. 5.8m lengths are ideal for 20GP container loading, while 6m lengths work best for 40GP container.

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Application of Polished 316 Stainless Steel Round Tubes

Polished 316 stainless steel round tubes are a great fit for both home projects and busy commercial spaces. They’re specifically designed for stainless steel railings that need to handle tough conditions like moisture, salt spray, and high humidity. They don’t rust easily — which is especially important for outdoor railings or coastal projects. On top of that, the polished finish gives them a clean, high-end look that instantly upgrades any space. So when you choose 316 stainless steel, you’re not just choosing something that looks good — you’re choosing stronger corrosion resistance, a longer lifespan, and real peace of mind.

For homes:

Polished 316 stainless steel tubes are a popular choice for things like stair railings, balcony railings, terraces, and even pool fencing.

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For commercial spaces:

In commercial projects like shopping malls, office buildings, hotels, or airports, these tubes are often used for handrails and safety railings.

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As a professional 316 Stainless Steel Round Tubes manufacturer and exporter, we provide strict quality control, stable bulk supply and competitive factory price.Welcome overseas wholesalers, contractors and construction companies to cooperate with us.