316 stainless steel square tube

The Ultimate Guide to 316 Stainless Steel Square Tube 316 stainless steel square tubes are widely used in various industries due to their excellent corrosion resistance, strength, and durability. This high-performance stainless steel tube grade is commonly found in applications such as marine environments, chemical processing plants and structural components. In this article, we will explore the properties, standards, sizes, surface finishes, and leading suppliers of 316 stainless steel square tubes. 316 stainless steel square tube 316 Stainless Steel Square Tube Properties 316 Stainless Steel Square Tube Chemical Properties 316 stainless steel is primarily composed of iron, chromium, nickel, and molybdenum. The addition of molybdenum significantly enhances its resistance to corrosion, particularly in chloride-rich environments. Below is a table showcasing its chemical composition: ElementComposition (%)Iron (Fe)BalanceChromium (Cr)16.0-18.0Nickel (Ni)10.0-14.0Molybdenum (Mo)2.0-3.0Manganese (Mn)≤ 2.0Silicon (Si)≤ 1.0Carbon (C)≤ 0.08Phosphorus (P)≤ 0.045Sulfur (S)≤ 0.03 316 Stainless Steel Square Tube Mechanical Properties The mechanical properties of 316 stainless steel square tubes make them suitable for high-stress applications. These properties include: PropertyValueYield Strength205 MPa (30,000 psi)Tensile Strength515 MPa (75,000 psi)Elongation40% minHardness (Rockwell B)95 maxDensity7.98 g/cm³ Stainless Steel 304 vs 316 When comparing stainless steel 304 and 316, the primary difference lies in the addition of molybdenum in 316 stainless steel, which enhances its corrosion resistance, especially against chlorides and acids. While both grades are durable and strong, 316 is preferred in environments where exposure to harsh chemicals or saltwater is common. Stainless Steel 316 vs 316L 316L stainless steel is a low-carbon variation of 316 stainless steel. The lower carbon content reduces the risk of carbide precipitation during welding, making it an excellent choice for applications requiring extensive welding without sacrificing corrosion resistance. 316 Stainless Steel Square Tube Standard ASTM A554-American standard for the stainless steel welded tube ASTM A554 is a widely used standard for welded stainless steel mechanical tubing. It covers tubes intended for structural and ornamental applications, ensuring high strength and good corrosion resistance. EN 10296-2 – European standard for welded stainless steel tubes for mechanical and general engineering purposes. JIS G3446 – Japanese standard for welded stainless steel tubes used in construction. GB/T 12770 – Chinese standard for welded stainless steel tubes for mechanical and structural applications. GB/T 18705 – Chinese standard for decorative welded stainless steel tubes. DIN 17455 – German standard for welded stainless steel tubes. 316 Stainless Steel Square Tube Size Here’s a list of common sizes for 316 stainless steel square tubes. These sizes are typically available in various wall thicknesses, with dimensions and tolerance depending on the manufacturer. 316 stainless steel square tube size list 316 Stainless Steel Square Tube Surface Finish Different surface finishes are available for 316 stainless steel square tubes, depending on their intended application. Here are some common finishes: MF (Mill Finish) – A basic finish as manufactured, suitable for industrial applications. Satin Finish (180 grit, 320 grit, 400 grit) – A brushed finish providing a smooth, uniform appearance, widely used in architectural and decorative applications. Mirror Finish (600 grit) – A highly polished surface offering a reflective finish, often used in ornamental and high-end applications. 316 Stainless Steel Square Tube Supplier Finding a reliable supplier is crucial for obtaining high-quality 316 stainless steel square tubes. Below are the top 10 suppliers worldwide: Vinmay Stainless Steel – A leading stainless steel tube manufacturer in China, specializing in high-quality 316 stainless steel square tubes. Outokumpu – A Finnish company known for premium stainless steel products. Aperam – A global supplier of stainless steel tubes and sheets. Jindal Stainless – One of India's largest stainless steel producers. Thyssenkrupp Stainless – A German manufacturer providing high-performance stainless steel tubes. Sandvik Materials Technology – A Swedish company specializing in stainless steel tubing for industrial applications. POSCO – A South Korean supplier offering a wide range of stainless steel products. Nippon Steel & Sumitomo Metal – A Japanese leader in stainless steel solutions. Columbus Stainless – A South African stainless steel manufacturer with a global presence. Yieh United Steel – A Taiwanese stainless steel supplier with an extensive product range. Conclusion 316 stainless steel square tubes are a preferred choice for applications requiring superior corrosion resistance, strength, and durability. Whether used in marine environments, food processing, or industrial applications, these tubes provide long-lasting performance. Understanding their properties, standards, sizes, surface finishes, and suppliers can help businesses and individuals make informed purchasing decisions. If you are looking for high-quality 316 stainless steel square tubes, be sure to source from a reputable supplier like Vinmay Stainless Steel, which offers premium-grade products tailored to industry needs.

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