C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
75/15
C22C 38/00 (2006.01) C21D 9/52 (2006.01)
Patent
CA 1045420
SPECIFICATION Robert M. Hudson, Edward J. Oles, Jr. and Clair J. Warning TFS AND QAR PRODUCT WITH IMPROVED SURFACE APPEARANCE ABSTRACT OF THE DISCLOSURE The discoloration or off-luster border area called "annealing border" which frequently forms on low carbon tin-mill gage steel coils during box annealing in commercial HNX atmospheres is prevented from forming by providing the steel with less than 0.25 wt. %, and preferably less than 0.20 wt. % free manganese in solid solution.
266140
Hudson Robert M.
Oles Edward J. (jr.)
Warning Clair J.
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