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Anodizing Spec Table
Anodizing KS Specifications — 3 sizes
ISO 7599ISO 10074
ISOAnodizing
3 sizes| Grade | Thickness (μm) | Hardness (HV) | Corrosion (SST h) | Color | Note |
|---|---|---|---|---|---|
| I () | 1~5 | 200 | 300 | Aerospace·Ultra | |
| II () | 5~25 | 250 | 500 | General · | |
| III ( ) | 25~100 | 500 | 800 | ~ | UltraPrecision Parts |
This specification follows ISO (International Organization for Standardization) standards. ISO ensures cross-border compatibility, making it ideal for multinational projects, export equipment design, and global parts procurement.
Anodizing grows an electrochemical oxide (Al₂O₃) layer on aluminum surfaces. Type I (chromic acid) is ultra-thin and aerospace-focused; Type II (sulfuric acid) is for general coloring and decoration; Type III (hard anodizing) deposits 25–100 μm layers with HV 500+ hardness for wear-resistant parts. Dye absorption enables a wide range of colors, and the oxide itself is an electrical insulator.