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Class Information
Number: 420/116
Name: Alloys or metallic compositions > Ferrous (i.e., iron base) > Chromium containing, but less than 9 percent > Processes > Including reducing a chromium compound
Description: Process wherein metallic chromium is introduced into the product by reducing a chromium compound.

Patents under this class:

Patent Number Title Of Patent Date Issued
5702502 Method for direct use of chromite ore in the production of stainless steel Dec. 30, 1997
5609669 Method of manufacturing stainless steel Mar. 11, 1997
5395420 Process for using foamed slag in stainless steel production Mar. 7, 1995
5011798 Chromium additive and method for producing chromium alloy using the same Apr. 30, 1991
3947267 Process for making stainless steel Mar. 30, 1976

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