HB/Z 118-1987
Aluminum and aluminum alloy chromic acid anodizing process (English Version)
- Standard No.
- HB/Z 118-1987
- Language
- Chinese, Available in English version
- Release Date
- 1987
- Published By
- Professional Standard - Aviation
- Latest
- HB/Z 118-1987
- Scope
- This guiding technical document formulates a general process method for chromic acid anodization of aluminum and aluminum alloys. Chromic acid anodizing is suitable for aluminum alloys with a copper content of no more than five percent or a silicon content of no more than seven percent. However, when the total alloying element content exceeds 7.5%, chromic acid anodization is likely to cause corrosion. Therefore, aluminum alloys with a total alloying element content greater than 7.5% are not suitable for chromic acid anodization.
HB/Z 118-1987 history
- 1987 HB/Z 118-1987 Aluminum and aluminum alloy chromic acid anodizing process
