JFE Steel Corp.

Patent application number	Title	Published
JFE Steel Corp. Patent applications
20090162240	BRAKE DISK HAVING HIGH TEMPER SOFTENING RESISTANCE - A brake disk including, by mass, 0.1% or less of C, 1.0% or less of Si, 2.0% or less of Mn, 10.5% to 15.0% of Cr, 2.0% or less of Ni, greater than 0.5% to 4.0% of Cu, 0.02% to 0.3% of Nb, and 0.1% or less of N and further including N, Nb, Cr. Si, Ni, Mn, Mo, and Cu, the remainder being Fe and unavoidable impurities, such that the following inequalities are satisfied:	06-25-2009