Production of ultra-low phosphorus steel

Details Production of ultra-low phosphorus steel Production of ultra-low phosphorus steel

1983-05-27

1984-06-26

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 52, 75 59, 75 60, C21C 532, C21C 534

Patent

active

044564775

ABSTRACT:
A process for producing an ultra-low phosphorus steel containing 0.010% or less of phosphorus is disclosed, which comprises charging a desiliconized pig iron into a top- and bottom-blowing oxygen converter, introducing a slag-forming agent in a powdered form onto the molten iron together with the top-blowing oxygen and introducing a bottom-blowing gas selected from the group consisting of an inert gas, nitrogen gas, oxygen gas, carbon monoxide gas, carbon dioxide gas and mixtures thereof during the oxygen top-blowing or during both the oxygen top-blowing and the subsequent tapping.

REFERENCES:
patent: 4358314 (1982-11-01), Normanton

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