| 摘要 |
This invention provides a nickel-iron base magnetic alloy having high magnetic and shielding properties including permeability, composed of 77.5 to 79.5 wt.% of nickel, 3.8 to 4.6 wt.% of molybdenum, 1.8 to 2.5 wt.% of copper, 0.1 to 1.10 wt.% of manganese, at most 0.010 wt.% of phosphorus, at most 0.0020 wt. % of sulfur, at most 0.0030 wt.% of oxygen, at most 0.0010 wt.% of nitrogen, at most 0.020 wt.% of carbon, and boron in an amount satisfying the relation: 0.0005 wt.% </= [B] - 10.8/14 [N] </= 0.0070 wt.%, with the balance being essentially iron, wherein the content of each of nickel, molybdenum, copper, manganese, and iron satisfies the relation: 3.3 </= 2.02x[Ni]-11.13x[Mo]-1.25x[Cu]-5.03x[Mn]/2.13x[Fe] </= 3.8. |
