Process for refining high-chromium steels

Details Process for refining high-chromium steels Process for refining high-chromium steels

1982-02-03

1984-10-02

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 59, 751305, C21C 700

Patent

active

044746059

ABSTRACT:
A process for refining high-Cr steel, e.g. 13% Cr steel and 18% Cr steel, is disclosed. The process comprises preparing molten iron in a top-and-bottom blowing converter, heating the molten iron to a predetermined temperature, effecting the decarburization of the thus prepared molten iron by blowing oxygen gas through a top lance against the surface of the molten iron to provide a molten steel while, as bottom-blown gas, initially introducing an oxygen-containing gas into the molten steel then changing to an inert gas when the carbon content of said molten steel is reduced to a predetermined level so as to suppress the oxidation of chromium, and tapping the resulting molten steel out of the converter after adjusting the steel composition.

REFERENCES:
patent: 3046107 (1962-07-01), Nelson
patent: 3850617 (1974-11-01), Umowski
patent: 3854932 (1974-12-01), Bishop
patent: 3953199 (1976-04-01), Michaelis

Affiliated with

Also associated with

Rating

Process for refining high-chromium steels does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for refining high-chromium steels, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for refining high-chromium steels will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-525439