Patent ID: 8961713
Filing Date: 2015-02-24
Classification: B21B,C21D,C22C,H01L,Y02E,Y10T

Abstract:
1. A ferritic stainless steel foil for flexible display use comprising, in mass %: C≦0.015%, Si≦0.50%, Mn≦0.50%, P≦0.04%, S≦0.03%, Cr: 18.00 to 20.0%, Mo: 1.75 to 2.25%, N≦0.011%, Ti+Nb≧16(C+N), with the balance Fe and unavoidable impurities, having a thickness of 20 μm to 200 μm, a surface roughness Ra of 50 nm or less obtained by superbright finishing without bright annealing, a 0.2% yield strength of at least 600 N/mm a shape recovery distortion angle of 10° or less after being wound around a 30 mm diameter cylinder.