Method of producing alloy steels having an extremely low carbon

Details Method of producing alloy steels having an extremely low carbon Method of producing alloy steels having an extremely low carbon

1978-01-27

1979-05-15

Rosenberg, P. D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 60, C21C 710

Patent

active

041546032

ABSTRACT:
A method of producing alloy steels having an extremely low carbon content of not higher than 30 ppm is disclosed. The alloy steels can be obtained by vacuum treating a preliminarily decarburized molten steel in the presence of a proper amount of a slag containing specifically limited amounts of chromic oxide and silicon oxide under an inert gas atmosphere by means of a commonly used degassing apparatus.

REFERENCES:
patent: 3802865 (1974-04-01), Ohkubo
patent: 3925061 (1975-12-01), Carlsson
patent: 3980469 (1976-09-01), Forster
patent: 4054445 (1977-10-01), Ramacciotti

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