5251
UNS A95251
Description
Aluminum alloy 5251 is non-heat treatable alloy with medium strength. It is readily weldable and offers higher mechanical properties together with a good cold formability. Thus, it is generally designed for general sheet metal work where higher mechanical properties are required together with a degree of formability. And the alloy offers a high corrosion resistance in marine, offshore and industrial environments. It should be noted that aluminum alloy 5251 is known for work hardening rapidly so care needs to be taken during the forming process.
Chemical Component
| Al | Si | Fe | Cu | Mg | Zn | Cr | Mn | Ti | Others |
|---|---|---|---|---|---|---|---|---|---|
| Balance | 0.4% max | 0.5% max | 0.15% max | 1.7-2.4% | 0.15% max | 0.15% max | 0.1-0.5% | 0.15% max | 0.15% max (total) |
Basic Information
| Items | 5251 |
|---|---|
| Catalog | ACAM-Al-A013 |
| Density | 2.69 g/cm3 |
| Thermal Expansion Coefficient | 24 x 10-6 |
| Electrical Conductivity | 36.7 IACS |
| Electrical Resistivity | 0.047 microhm m |
| Modulus of Elasticity | 70 GPa |
| Thermal Conductivity | 155 W/m.°K |
| Melting Range | 595-650 °C |
Material Forms
Alfa Chemistry offers aluminum alloy 5251 in a variety of forms, including Round Bar, Angle, Flat, Tube, Sheet & Plate and Hexagon Bar.
Fabrication Properties
| Cold Formability | Machinability | Brazing and Soldering | Inert Gas Welding | Resistance Welding |
|---|---|---|---|---|
| Very good | Average | Poor | Very good | Very good |
Features
- Very good cold formability
- Readily weldable
- High marine corrosion resistance
- Good aesthetic properties
- Very good anodising properties
Applications
Aluminum alloy 5251 can be used in a variety of applications, including:
- Boats
- Panelling and pressings
- Offshore marine structures
- Aircraft parts
- Vehicle panels
- Furniture tubing
- Silos
- Containers
* Technical data included herein should be used as a guideline only, and should not be construed as maximum or minimum values for specification or for final design, or for a particular use or application. The data may be revised anytime without notice.
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Alfa Chemistry is a manufacturer of standard & custom specialty metals & alloys. We stock a wide variety of alloys in different shapes and specifications. If you can't find the product or specification you need, please contact us directly.
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