1J79
1J79 is an iron-nickel soft magnetic alloy with high magnetic permeability, low coercivity and good processing properties. 1J79 alloy also has good ductility and toughness, and is easy to cold work and heat treat.
| C % | P % | S % | Cu % | Mn % | Si % | Mo % | Ni % | Fe % |
Min. | - | - | - | - | 0.60 | 0.30 | 3.80 | 78.50 | Bal. |
Max. | 0.03 | 0.020 | 0.020 | 0.20 | 1.10 | 0.50 | 4.10 | 80.00 |
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Mechanical properties
Density (g/cm3) | 8.60 | |
Resistivity (μΩ·m) | 0.55 | |
Curie point (℃) | 450 | |
Saturation magnetostriction coefficient (10-6) | 2 | |
Brinell hardness (HBS) | hard state | 210 |
soft state | 120 | |
Tensile strength (MPa) | hard state | 1030 |
soft state | 560 | |
Yield strength (MPa) | ||
hard state | 980 | |
soft state | 150 | |
Elongation (%) | hard state | 3 |
soft state | 50 | |
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