IPC Main Group
C22C 21/00 Alloys based on aluminium
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- Subclass:
- ALLOYS
4 direct subcodes
Child Classifications
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- C22C 21/02 with silicon as the next major constituent
- C22C 21/06 with magnesium as the next major constituent
- C22C 21/1 with zinc as the next major constituent
- C22C 21/12 with copper as the next major constituent