Aluminum Ingots 99 Percent Purity
Ultra high purity aluminum ingots are supplied for precision industrial and metallurgical applications.
Aluminum ingots with 99% or higher purity (typically 99.7%–99.99%) are high-grade, silvery-white primary metals used for remelting, casting, and manufacturing, characterized by excellent corrosion resistance, high thermal/electrical conductivity, and malleability. Commonly sold in 20-25kg trapezoidal shapes, they are essential in aerospace, electrical, and structural industries, often featuring low iron and silicon impurities.
Key Characteristics and Specifications
- Purity Levels: Ranges from 99.0% to 99.99%, with 99.7% (often labeled as A7) being common for industrial applications.
- Composition: Primarily Aluminum (Al), with trace elements such as iron (Fe), silicon (Si), copper (Cu), and magnesium (Mg) totaling less than 0.3%.
- Physical Properties: Excellent corrosion resistance, high reflectivity, and high electrical conductivity.
- Appearance: Silvery-white, generally cast in trapezoidal or stacked ingot forms.
Primary Applications
- Remelting: Used as raw material to create aluminum alloys for casting.
- Electrical Industry: Utilized in high-conductivity applications due to high purity levels.
- Manufacturing & Construction: Employed in automotive, aerospace, and general manufacturing components.
Types of High-Purity Ingots
- 99.7% (A7): A standard, high-purity ingot for general casting and fabrication.
- 99.8% (A8): Higher purity for specialized industrial applications.
- 99.99% (4N): Used where exceptional purity and low trace elements are required.
These ingots are vital for industries prioritizing, durable, lightweight, and corrosion-resistant materials, with 1000 series grades offering the highest commercial purity.
