Refining of pig-iron; Cast iron

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

Related Keywords

Child Classifications

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• C21C 1/02 Dephosphorising or desulfurising
• C21C 1/04 Removing impurities other than carbon, phosphorus, or sulfur
• C21C 1/06 Constructional features of mixers for pig-iron
• C21C 1/08 Manufacture of cast-iron
• C21C 1/1 Making spheroidal graphite cast-iron