Rotelloy 8

Rotelloy 8 is an iron-cobalt-vanadium soft magnetic alloy which exhibits high magnetic saturation (24 kilogauss) and a unique combination of high yield strength and moderate core loss. The alloy contains a Tantalum addition for grain refinement during mill processing and final heat treating to produce higher yield strength than conventional Hiperco® 50.

Type Analysis

  • Carbon (Nominal) 0.01
  • Silicon (Nominal) 0.05
  • Manganese (Nominal) 0.05
  • Cobalt (Nominal) 49
  • Iron (Nominal) Balance
  • Columbium/Niobium 0.3
  • Tantalum 0.3
  • Vanadium (Nominal) 1.15


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