It was shown that the deformation-induced redistribution of elements in the X11H30 steel decreased down to zero as the deformation temperature increased from 0 to 300°C. The maximum Curie temperature of ferromagnetic clusters of the deformation origin was the same and equal to about 160°C in the X11H30, X12H30 and X15H38 steels. The field-ion microscopy examination revealed particles of an ordered phase of the Llo- or Lb-type 3 to 5 nm in size whose concentration accounted for 5-10% of the volume.