Aluminum Alloy 5083 is a popular choice for applications that require high strength, good corrosion resistance, and excellent weldability. Common designations include Aluminum 5083-H321, UNS A95083, ISO AlMg4.5Mn, Aluminum 5083-H116, and AA5083-H116. This non-heat-treatable alloy is especially well-suited for marine environments and industrial settings where exposure to harsh chemicals is common.
One of the key advantages of 5083 aluminum is its superior strength among non-heat-treatable alloys. However, it’s important to note that this material should not be used in temperatures exceeding 65°C, as it may lose some of its mechanical properties under such conditions. The alloy also maintains its strength after welding, making it ideal for structural and load-bearing applications.
In addition to its strength, 5083 aluminum offers good ductility and formability, allowing it to be easily shaped into complex forms without cracking or breaking. It performs exceptionally well in cryogenic environments, making it a preferred material in low-temperature applications.
The chemical composition of 5083 aluminum includes magnesium (Mg), manganese (Mn), and small amounts of other elements like silicon (Si), iron (Fe), and copper (Cu). Here's a breakdown of its typical composition:
| Grades | Si | Fe | Cu | Mn | Cr | Mg | Ti | Zn | Others Total |
|--------|--------|--------|--------|--------|--------|---------|--------|--------|--------------|
| 5083 | 0.40 max | 0.40 max | 0.10 max | 0.40 / 1.0 | 0.05 / 0.25 | 4.0 / 4.90 | 0.15 max | 0.25 max | 0.15 max |
Here are some typical mechanical properties of 5083 aluminum:
| Material | Temper | Tensile Strength (ksi) min | Yield Strength (ksi) min | Elongation % in 2" |
|-------------------------------|--------|-----------------------------|---------------------------|---------------------|
| 5083 Extruded Bar (<5" diameter) | 0 | 39 | 16 | 14 |
| 5083 Extruded Bar (<5" diameter) | H111 | 40 | 24 | 12 |
| 5083 Extruded Bar (<5" diameter) | H112 | 39 | 16 | 12 |
Whether you're working on marine structures, transportation systems, or cryogenic equipment, 5083 aluminum offers a reliable and versatile solution. Its combination of strength, durability, and ease of fabrication makes it a top choice in many engineering fields.
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