Comparison of 5083 and 5383 Material Properties
Below is a comparison of the main characteristics of 5083 and 5383 aluminum square bars:
| Property | 5083 Aluminum Square Bar | 5383 Aluminum Square Bar |
|---|---|---|
| Main Alloying Elements | Magnesium (4.0-4.9%), Manganese (0.40-1.0%) | Magnesium (4.0-4.9%), Manganese (0.40-1.0%), Zirconium |
| Tensile Strength | ≥270 MPa | ≥275 MPa |
| Yield Strength | ≥110 MPa | ≥125 MPa |
| Elongation | ≥20% | ≥16% |
| Hardness | Lower | About 10% higher than 5083 |
| Weldability | Excellent | Excellent, with a 15% increase in yield strength of welded structures |
| Corrosion Resistance | Excellent | Superior, especially in saltwater environments |
Material Characteristics of 5083 Aluminum Square Bar
The 5083 aluminum square bar belongs to the Al-Mg alloy series and has the following notable features:
Chemical Composition: The main alloying elements are magnesium (4.0-4.9%), manganese (0.40-1.0%), and chromium (0.05-0.25%), with the balance being aluminum. This composition grants the material excellent corrosion resistance and weldability.
Density and Weight: The density is about 2.7 g/cm³, significantly lower than steel, giving it a lightweight characteristic. This is important in shipbuilding and vehicle manufacturing, reducing structural weight and improving fuel efficiency.
Mechanical Properties: Typical mechanical properties of 5083 aluminum square bar include tensile strength ≥270 MPa, yield strength ≥110 MPa, and elongation ≥20%. These properties make it suitable for medium-strength and good-toughness applications.
Corrosion Resistance: The 5083 alloy exhibits excellent corrosion resistance, particularly against atmospheric, freshwater, seawater, alcohol, gasoline, organic acids, and concentrated nitric acid. This makes it especially suitable for marine environments.
Low Temperature Performance: As the temperature decreases, the tensile strength, yield strength, and elongation of 5083 increase, providing good low-temperature toughness. This makes it suitable for low-temperature environments.
Material Characteristics of 5383 Aluminum Square Bar
The 5383 aluminum square bar is an upgraded version of 5083 with the following features:
Chemical Composition: The main alloying elements are magnesium (4.0-4.9%), manganese (0.40-1.0%), and a small amount of zirconium, with the remainder being aluminum. This improves strength and hardness compared to 5083.
Mechanical Properties: Typical mechanical properties of 5383 aluminum square bar include tensile strength ≥275 MPa, yield strength ≥125 MPa, and elongation ≥16%. In H116 temper, tensile strength can reach ≥305 MPa, and yield strength ≥215 MPa.
Corrosion Resistance: The 5383 alloy further improves corrosion resistance, especially in saltwater environments, while maintaining the excellent corrosion resistance of 5083. This makes it ideal for marine applications.
Low-Temperature Performance: The 5383 alloy maintains its strength even in extreme low-temperature environments, making it suitable for manufacturing low-temperature pressure vessels and storage tanks.
