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5086

ASTM B209 / AlMg4 / 5086 / H321

Chemical Properties % Value
Silicon (Si)0,00 - 0,40
Chromium (Cr)0,05 - 0,25
Magnesium (Mg)3,50 - 4,50
Manganese (Mn)0,20 - 0,70
Titanium (Ti)0,00 - 0,15 / -
Iron (Fe)0,00 - 0,50
Zinc (Zn)0,00 - 0,25
Aluminium (Al)Balance
Physical Properties Value
Density2,66 g/cm³
Melting Point585 °C
Thermal Expansion23.8 µm/m.°C
Modulus of Elasticity68 GPa
Thermal Conductivity130 W/m.K
Electrical Resistivity31% IACS
Mechanical Properties Value
Proof Strength220 MPa
Yield Strength310 MPa
Shear Strength190 MPa
Elongation A50 mm16%
Hardness85 HB

The 5086 H321 aluminum alloy is known for its excellent corrosion resistance, high strength, and machinability. As part of the aluminum-magnesium alloy class, this material is commonly used in industries such as maritime, automotive, construction, and other applications exposed to harsh environmental conditions. The H321 temper provides medium hardness to the alloy, enhancing both flexibility and durability. Its lightweight and strong structure make it an ideal material for use in the maritime industry and other outdoor applications.

The 5086 H321 aluminum alloy is highly suitable for anodizing. Anodizing forms a protective oxide layer on the alloy's surface, which enhances its corrosion resistance and provides an aesthetically pleasing finish. This feature makes the 5086 H321 alloy an excellent choice for maritime, outdoor, and decorative applications. In terms of weldability, the 5086 H321 alloy performs well. As an aluminum-magnesium alloy, it can be welded using proper techniques to create strong and reliable welds.

In terms of bending and forming, the 5086 H321 aluminum alloy is highly flexible and machinable despite its high strength. It can be easily shaped and bent with the right processing techniques, making it suitable for the production of complex shapes in industries such as automotive, construction, and maritime. Additionally, the 5086 H321 alloy is suitable for use in high-vibration environments. Its high durability and elastic modulus make it ideal for vibration-resistant components such as engine parts and transport equipment.

Regarding corrosion resistance, the 5086 H321 aluminum alloy is highly resistant to seawater, moisture, and atmospheric exposure. This makes it an ideal material for use in maritime applications and equipment exposed to moisture. The advantages of the 5086 H321 alloy include high corrosion resistance, good machinability, and lightweight properties, while its disadvantages include limited performance under high temperatures and certain strength applications.

ALLOY DESIGNATIONS
 
5086 H321 has the following standard designations and specifications.

As Plate/Sheet; 5086 H321, AMS QQ-A-250/7, ASTM B209ISO AlMg4, DIN AlMg4Mn UNS A95086, ASTM B632, ASTM B928, AMS QQ-A-250/19, WNR 3.3545

 

Choosing Factors for 5086 H321

  • Strength: Good
  • Machining: Fairly good
  • Weldability: Okay
  • Formability: Very Good
  • Corrosion Resistance: Excellent
  • Heat Treating: Yes
 

Some Well-Known Applications for 5086 H321

Especially in maritime and marine and boat materials.
As a structural component of missiles,
It is also preferred in radio towers, armor plating and tank components.

 

SUPPLIED FORMS
 
5086 H321 is produced/supplied in plate/sheet forms.
  • Plate
  • Sheet
DELIVERY: