Iron core material 1k201 1k107 Saturation magnetic flux density (t) 0.6161;171;0.8 1.25 Curie temperature (oc) >320 >570 Crystallization temperature (oc) >500 >500 Saturation magnetostriction coefficient (161;¨¢ 10-6) < 1 < 2 Residual magnetic flux density (t) 0.3161;171;0.5 0.5161;171;0.8 Initial permeability >80, 000 >80, 000 Maximum permeability >600, 000 Cap+c/t box