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5083 aluminum tube is a marine-grade, non-heat-treatable Al-Mg alloy known for its excellent corrosion resistance and superior weldability. It performs exceptionally well in seawater and harsh marine environments, maintaining high strength and durability. The tube is typically produced by seamless extrusion or cold drawing, ensuring precise dimensions and smooth surfaces. With its combination of lightweight performance, corrosion resistance, and mechanical strength, 5083 aluminum tube is widely used in shipbuilding, offshore platforms, pressure vessels, cryogenic equipment, and other structural and marine engineering applications.
5083 aluminum tube is a high-strength, non-heat-treatable alloy primarily composed of aluminum, magnesium, and manganese. Known for its excellent corrosion resistance, especially in marine and seawater environments, this alloy offers superior weldability and moderate strength. It is commonly supplied in tempers such as O, H111, H112, H116, and H321, suitable for various forming and fabrication processes. The tube is available in a wide range of diameters and wall thicknesses, with finishes including mill, anodized, or polished surfaces. 5083 aluminum tubes are widely used in shipbuilding, offshore structures, pressure vessels, transportation equipment, and cryogenic tanks due to their durability and lightweight performance.
| Alloy | 5083 |
| Equivalent | EN AW-5083 / ISO AlMg4.5Mn / UNS A95083 / ASTM B241 5083 |
| Temper | O, H111, H112, H116, H321 |
| Shape | Round Tube / Square Tube |
| Surface Finish | Mill Finish, Anodized, Polished, Brushed, Powder Coated |
| Process | Extruded, Drawn, or Seamless |
| OD | 10 mm – 360 mm (custom sizes available up to 1000 mm) |
| WT | 0.5 mm – 40 mm (custom up to 150 mm) |
| Length | 1000 mm – 6000 mm or customized |
| Standard | ASTM B241 / ASME SB241 / ASTM B221 / EN 755-8 |
| Features | High strength, excellent corrosion resistance, good weldability, lightweight |
| Applications | Shipbuilding, Marine structures, Offshore platforms, Pressure vessels, Cryogenic tanks, Automotive, Aerospace components |
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| NPS / Size | OD (inch) | Wall Thickness (inch) | Length (ft / m) | Temper | Standard |
|---|---|---|---|---|---|
| 1/8″ SCH40 | 0.405 | 0.068 | 1–6 m or 3–20 ft | O / H111 / H112 | ASTM B241 / ASME |
| 1/8″ SCH80 | 0.405 | 0.095 | 1–6 m | O / H111 / H112 | ASTM B241 / ASME |
| ¼″ SCH40 | 0.540 | 0.088 | 1–6 m | O / H111 / H112 | ASTM B241 / ASME |
| ¼″ SCH80 | 0.540 | 0.119 | 1–6 m | O / H111 / H112 | ASTM B241 / ASME |
| 3/8″ SCH40 | 0.675 | 0.091 | 1–6 m | O / H111 / H112 | ASTM B241 / ASME |
| 3/8″ SCH80 | 0.675 | 0.126 | 1–6 m | O / H111 / H112 | ASTM B241 / ASME |
| ½″ SCH5 | 0.840 | 0.065 | 1–6 m | O / H111 / H112 | ASTM B241 / ASME |
| ½″ SCH10 | 0.840 | 0.083 | 1–6 m | O / H111 / H112 | ASTM B241 / ASME |
| ½″ SCH40 | 0.840 | 0.109 | 1–6 m | O / H111 / H112 | ASTM B241 / ASME |
| ½″ SCH80 | 0.840 | 0.147 | 1–6 m | O / H111 / H112 | ASTM B241 / ASME |
| ½″ SCH160 | 0.840 | 0.188 | 1–6 m | O / H111 / H112 | ASTM B241 / ASME |
| ¾″ SCH5 | 1.050 | 0.065 | 1–6 m | O / H111 / H112 | ASTM B241 / ASME |
| ¾″ SCH10 | 1.050 | 0.083 | 1–6 m | O / H111 / H112 | ASTM B241 / ASME |
| ¾″ SCH40 | 1.050 | 0.113 | 1–6 m | O / H111 / H112 | ASTM B241 / ASME |
| ¾″ SCH80 | 1.050 | 0.154 | 1–6 m | O / H111 / H112 | ASTM B241 / ASME |
| ¾″ SCH160 | 1.050 | 0.219 | 1–6 m | O / H111 / H112 | ASTM B241 / ASME |
| 1″ SCH5 | 1.315 | 0.065 | 1–6 m | O / H111 / H112 | ASTM B241 / ASME |
| 1″ SCH40 | 1.315 | 0.109 | 1–6 m | O / H111 / H112 | ASTM B241 / ASME |
| 1″ SCH80 | 1.315 | 0.165 | 1–6 m | O / H111 / H112 | ASTM B241 / ASME |
| 1″ SCH160 | 1.315 | 0.219 | 1–6 m | O / H111 / H112 | ASTM B241 / ASME |
5083 aluminum tube is known for its high strength, excellent corrosion resistance, and outstanding weldability. As a non-heat-treatable Al-Mg-Mn alloy, it retains good mechanical properties after welding and forming. The alloy exhibits exceptional resistance to seawater, marine atmosphere, and industrial chemical environments, making it ideal for marine and offshore applications. It offers good formability and machinability, allowing easy fabrication into complex shapes. 5083 aluminum tube also maintains stable performance at cryogenic temperatures, providing reliability for pressure vessels and low-temperature equipment. Available in multiple tempers such as O, H111, H112, and H321, it combines durability, light weight, and toughness, making it one of the most versatile materials in the 5000 series aluminum family.
5083 aluminum tubes are widely used in industries that demand high strength, excellent corrosion resistance, and reliable weldability. They are primarily applied in marine and shipbuilding projects, including hull structures, deck components, and offshore platforms, due to their superior resistance to seawater and salt spray. In addition, 5083 aluminum tubes are used for pressure vessels, cryogenic storage tanks, pipelines, and heat exchangers, where stability under low temperatures and high pressure is essential. Their lightweight yet durable nature also makes them suitable for automotive, aerospace, and rail transportation components, as well as structural frames and mechanical parts that require strength without adding excessive weight.
ZG can supply 5083 aluminum tubes that fully comply with major international standards, including ASTM B241 / ASME SB241, ASTM B221, and EN 755-8, ensuring consistent mechanical and dimensional properties. The tubes can also be produced according to ISO and GB/T specifications upon request. ZG provides complete Mill Test Certificates (MTC) with each batch, detailing chemical composition, mechanical properties, and temper condition. Additional inspection reports such as Ultrasonic Testing (UT), Radiographic Testing (RT), and Dimension Inspection Reports can be issued when required. For export projects, ZG can also offer Third-Party Inspection Certificates (e.g., SGS, BV, or TUV) to verify product quality and compliance with customer specifications.
