A7, A8, A9 aluminum ingots are internationally recognized grades used to differentiate aluminum materials with different purities and compositions. Standard: ASTM, GB, DIN, BS, EN, JIS Type Describe A7 aluminum ingot A7 aluminum ingot is a high-purity aluminum ingot typically with aluminum purity of 99.7% or higher. It has relatively high purity and is commonly used in the production of aluminum alloy materials, aluminum sheets, aluminum profiles, etc. A8 aluminum ingot A8 aluminum ingot is an aluminum alloy ingot typically with aluminum purity of 99.8% or higher, along with a small amount of alloying elements such as copper, manganese, etc. It has higher strength and corrosion resistance and is commonly used in automotive parts, aerospace, construction, etc. A9 aluminum ingot A9 aluminum ingot is an aluminum alloy ingot typically with aluminum purity of 99.9% or higher, along with a certain proportion of alloying elements such as copper, manganese, magnesium, etc. It has higher strength and corrosion resistance and is commonly used in aerospace, automotive parts, construction, electronics, etc. Chemical Analysis Product Specification and Size : Product name Aluminum Ingot Chemical Composition Al Al (Min) 99.5% â?? 99.9% Model Number Aluminum Ingot Shape Ingot Surface Treatment Anodized Regular Size 30*150*700mm Length Base on customersâ?? surface treatment Applications Mainly used for casting and deformation of aluminum alloy Widely used in automobile, textile, electronics and other industries Export to America,� Russia,� Australia, Brazil, Canada, Peru, Iran, Italy, India, United Kingdom, Arab, etc. Chemical� Composition� (%)�  Grade Alâ?¥ Impuritiesâ?¤ Al Si Fe Cu Ga Mg Zn Mn Others Sum Al99.9 99.90 0.50 0.07 0.005 0.02 0.01 0.025 â?? 0.010 0.10 Al99.85 99.85 0.80 0.12 0.005 0.03 0.02 0.030 â?? 0.015 0.15 Al99.7 99.70 0.10 0.20 0.010 0.03 0.02 0.030 â?? 0.030 0.30 Al99.6 99.60 0.16 0.25 0.010 0.03 0.03 0.030 â?? 0.030 0.040 Al99.5 99.50 0.22 0.30 0.020 0.03 0.05 0.050 â?? 0.030 0.50 Al99.00 99.00 0.42 0.50 0.020 0.03 0.05 0.050 â?? 0.050 1.00 Application Ordinary industrial pure aluminum is thought as 1000 series aluminum ingot, aluminum content upto 99.0%. Low strength, heat treatment canâ??t be further strengthened; But it is very malleable. Aluminum products have good corrosion resistance and weldability; After anodic oxidation, thecorrosion resistance of aluminum ingot are often improved, and a more beautiful surface layer can beobtained.