Aluminum Strips With Alloy 1070 1060
Aluminum strips are versatile materials widely used across various industries for their durability, lightweight nature, and excellent corrosion resistance. Among the many aluminum alloys, 1070 and 1060 is know as popular choices for applications requiring superior purity and excellent electrical and thermal conductivity.
Aluminum Alloys 1070 and 1060
Aluminum alloys are classified based on their composition and properties. The 1000 series aluminum alloys like 1070 and 1060 are considered commercially pure aluminum, containing minimum aluminum content of over 99%. The primary difference lies in their purity and trace impurities which slightly influence physical and mechanical properties:
| Alloy | Aluminum (Al) % | Other Elements (max) |
|---|---|---|
| 1070 | 99.70 | Fe 0.20, Si 0.10, Cu 0.05, Mn 0.03, Zn 0.05 |
| 1060 | 99.60 | Fe 0.35, Si 0.10, Cu 0.05, Mn 0.03, Zn 0.05 |
Both contain very low amounts of alloying elements which result in excellent ductility and corrosion resistance but comparatively lower strength than alloys with other alloying constituents.
Physical and Mechanical Parameters
| Property | Alloy 1070 | Alloy 1060 | Unit |
|---|---|---|---|
| Density | 2.70 | 2.70 | g/cm³ |
| Ultimate Tensile Strength | 65 - 125 | 60 - 110 | MPa |
| Yield Strength | 20 - 100 | 20 - 100 | MPa |
| Electrical Conductivity | 61-69 % IACS | 58-63 % IACS | % IACS (International Annealed Copper Standard) |
| Thermal Conductivity | Around 220 | Around 217 | W/m·K |
The parameters, of course, fluctuate with the alloy temper designations like O (annealed), H (strain-hardened), and their subsets (H12, H14, etc.) which control strength and flexibility through mechanical working processes.
Alloy Tempering and Implementation Standards
Rolled aluminum strips of these alloys often use the following tempers to meet demanding specifications for flexibility, surface finish, and strength:
- O Temper: Fully annealed with a soft and ductile structure, suitable for deep drawing, bending, and rolling.
- H12, H14 Transversely Rolled Temper: Provides intermediate strength through cold working with moderate hardness.
Comprehensive implementation standards such as:
- ASTM B209/B209M (Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate)
- EN 573-3 (Aluminum and Aluminum Alloys - Chemical Composition and Forms)
are generally followed, ensuring consistency in material properties and usability.
Functions of Aluminum 1070 & 1060 Strips
The high purity in alloys 1070 and 1060 aluminum strips imparts them with some features:
- Excellent electrical and thermal conductivity: Their purity makes them ideal for electrical capacitors, conductors, and heat exchangers.
- Superior corrosion resistance: Enhances longevity in outdoor and marine applications.
- High ductility and formability: Excellent for products requiring shaping by bending, stamping, and deep drawing.
- Reflective properties: Often used for lighting fixtures and reflecting panels.
Essential Industrial Applications
1. Electrical and Electronic Industry
Alloy 1070/1060 strips are preferred in manufacturing improved capacitor foils, due to their capacity to carry current effectively with minimal loss. They also find use in bus bars, electrical connectors, and heat sinks.
2. Packaging Industry
Due to their lightweight and body malleability, these alloys are crucial in packaging foil applications, ensuring flexibility and surface finish required for food and pharmaceutical wraps.
3. Heat Exchangers and Radiators
High thermal conductivity makes these strips well suited for heat transfer devices such as heat exchangers and evaporators, supporting the demands for efficient energy use.
4. Decorative and Reflective Panels
Their smooth surface finish and resistance to oxidation allow use in decorative architectural panels, reflecting surfaces, trademark nameplates, and internal vehicle linings.
5. Transportation
Used in lightweight structural elements – especially in the railway car industry for thermal insulation and cladding.
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