Patent ID: 8012270

Claim:
A soft magnetic alloy consisting essentially of: an amount of cobalt Co, such that 5 percent by weight≦Co≦30 percent by weight, an amount of chromium Cr, such that 1 percent by weight≦Cr≦20 percent by weight, an amount of aluminum Al, such that 0.1 percent by weight≦Al≦2 percent by weight, optionally, an amount of silicon Si, such that 0 percent by weight≦Si≦1.5 percent by weight, an amount of manganese Mn, such that 0.017 percent by weight≦Mn≦0.2 percent by weight, an amount of sulfur S, such that 0.01 percent by weight≦S≦0.05 percent by weight, and wherein where Mn/S>1.7, optionally, an amount of oxygen O, such that 0 percent by weight≦O≦0.0015 percent by weight, an amount of cerium Ce, such that 0.001 percent by weight≦Ce≦0.05 percent by weight, optionally, an amount of calcium Ca, such that 0 percent by weight≦Ce≦0.005 percent by weight, optionally, amounts of vanadium V, molybdenum Mo, tungsten W, niobium Nb, titanium Ti, and nickel Ni, such that the amounts of Al, Si, and Mn, and any amounts of V, Mo, W, Nb, Ti, and Ni present are such that 0.117 percent by weight≦(Al+Si+Mn+V+Mo+W+Nb+Ti+Ni)≦5 percent by weight, and the remainder iron, wherein the alloy has a coercive field strength H c <5.0 A/cm.