IPC Subgroup
C21C 7/04 Removing impurities by adding a treating agent
Introduced: September 1968
Last revised: January 2006
Full Title
Treating molten ferrous alloys, e.g. steel, not covered by groups > Removing impurities by adding a treating agent
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- METALLURGY OF IRON
- Subclass:
- PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
5 direct subcodes
Child Classifications
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- C21C 7/06 Deoxidising, e.g. killing
- C21C 7/064 Dephosphorising; Desulfurising
- C21C 7/068 Decarburising
- C21C 7/072 Treatment with gases
- C21C 7/076 Use of slags or fluxes as treating agents