1070 aluminum sheet is a high-purity industrial aluminum alloy in the 1xxx series, with an aluminum content of 99.7% or higher, making it one of the purest alloys in this series. This alloy cannot be strengthened by heat treatment but can be hardened through cold working (such as rolling or drawing), offering excellent ductility, electrical conductivity, and corrosion resistance. It is commonly used in applications requiring high conductivity and reflectivity, while being cost-effective for large-scale industrial use.
Chemical Composition
The chemical composition of 1070 aluminum sheet is primarily pure aluminum, with impurities strictly controlled to ensure high purity and performance stability. Typical composition (by weight percentage) is as follows:
| Element | Content Range |
|---|---|
| Aluminum (Al) | ≥99.7% |
| Iron (Fe) | ≤0.25% |
| Silicon (Si) | ≤0.20% |
| Zinc (Zn) | ≤0.04% |
| Magnesium (Mg) | ≤0.03% |
| Copper (Cu) | ≤0.04% |
| Titanium (Ti) | ≤0.03% |
| Manganese (Mn) | ≤0.03% |
| Other individual impurities | ≤0.03% |
| Total other impurities | ≤0.15% |
These elements maintain the alloy’s purity, avoiding excessive impurities that could affect conductivity and corrosion resistance.
Physical Properties
1070 aluminum sheet is renowned for its superior physical characteristics, particularly in conductivity and thermal performance:
- Density: Approximately 2.70 g/cm³, lightweight and easy to process.
- Electrical Conductivity: About 61-62% IACS (International Annealed Copper Standard) at 20°C, second only to copper, silver, and gold, making it an excellent conductor.
- Thermal Conductivity: High thermal conductivity, suitable for heat exchangers.
- Melting Point: Around 660°C.
- Corrosion Resistance: Excellent resistance to atmosphere, water, and most acids and organic compounds, but sensitive to strong alkalis.
- Reflectivity: High reflectivity when the surface is smooth, often used in reflectors.
Mechanical Properties
As a non-heat-treatable alloy, 1070 aluminum sheet has relatively low mechanical strength, relying mainly on cold working for enhancement. Typical mechanical properties (depending on temper, such as O for annealed or H18 for hard):
| Property | Value (Example, O Temper) | Value (Example, H18 Temper) |
|---|---|---|
| Tensile Strength (MPa) | ~95 | ~165 |
| Yield Strength (MPa) | ~35 | ~150 |
| Elongation (%) | ≥35 | ≥2 |
| Hardness (Brinell) | ~20-25 | ~45 |
These properties make it ideal for applications requiring high formability and ductility, but not for high-strength structural components.
Common Tempers and Specifications
- Tempers: O (annealed), H12, H14, H16, H18, H19, H22, H24, H26, H28, H112, etc.
- Thickness: Typically 0.1-500 mm, customizable based on needs.
- Standards: Compliant with ASTM B209, EN AW-1070, UNS A91070, and other international standards.
| 20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High) | |||
| 40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High) | |||
| 40ft HC:12032mm(Length)x2352mm(Width)x2698mm(High) | |||
Aluminum Production Process
Applications of 1070 Aluminum Sheet
1070 Aluminum Sheet
1070 aluminum sheet offers extremely high purity and excellent electrical and thermal conductivity. It is widely used in electrical components, transformer windings, heat exchangers, insulation panels, and chemical equipment where superior conductivity and corrosion resistance are required. Its excellent formability also makes it suitable for stamping and deep-drawing applications.
Warehouse Storage
As a core component of RSC Aluminiumsc business operations, the company not only focuses on the production and processing of high-quality aluminum materials but has also established a comprehensive warehouse storage system. This ensures the secure custody and efficient dispatch of aluminum plates, foils, tubes, rods, and other product series. We employ modern warehouse management practices to achieve scientific classification of raw material and finished goods inventory, dynamic monitoring, and timely shipping and distribution. This effectively enhances supply chain responsiveness, reduces logistics costs, and provides stable, reliable product supply assurance for global customers. Aluminiumsc’s diversified inventory strategy not only supports timely delivery of large-volume orders but also empowers customers to flexibly respond to market demand fluctuations.
Packaging and Transportation
RSC provides professional aluminum packaging and transportation services, utilizing customized moisture-proof and shock-resistant packaging to ensure products arrive safe and intact. Our multi-channel transportation system supports land, sea, and air freight, enabling efficient and timely global distribution to maintain a seamless supply chain.
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