It is very important to understand the end use of the material as the properties are developed during a proprietary final annealing cycle which is performed after forming.
To best understand which MuMetal is the most appropriate for your project, we’ve included its properties below!
| Co-NETIC® AA PERFECTION ANNEALED | Co-NETIC® STRESS ANNEALED* | Co-NETIC® B STRESS ANNEALED* | NETIC® S3-6 STRESS ANNEALED* | |
|---|---|---|---|---|
| Specific Gravity | 8.74 | 8.74 | 8.18 | 7.86 |
| Coefficient of Expansion, per °C x 10-6 | 12.6 | 12.6 | 8.3 | 13.7 |
| Tensile Strength, PSI x 10 | 64 | 85 | 80 | 42 |
| Yield Strength, PSI x 10 | 18.5 | 33 | 27 | 27 |
| Modulus of Elasticity, PSI x 10 | 25 | 30 | 24 | 30 |
| Hardness, Rockwell B | 50 Ref. | 70 Ref. | 68 Ref. | 50 Ref. |
| Elongation in 2 inches | 27% | 32% | 32% | 38% |
| Melting Point | 2650°F/1454°C | 2650°F/1454°C | 2600°F/1427°C | 2790°F/1532°C |
| Thermal Conductivity (cal/sec/cm2/cm/°c) at 20° | .138 | .138 | .037 | .118 |
| Electrical Resistivity Micro-ohm-centimeters | 55 | 55 | 48 | 11 |
| Saturation Induction (Gauss) | 8,000 | 15,000 | 21,400 | |
| Initial Permeability | 30,000 | 8,000 | 200 | |
| Permeability at 40 B | 75,000 | 12,000 | 300 | |
| Peremeability at 200 B | 135,000 |  | 30,000 | 500 |
| Maximum Peremability | 450,000 | 150,000 | 4,000 | |
| Induction at µ max. | 3,000 | 7,000 | 8,000 | |
| Coercive Force Hc, Oersteds | .015 | 0 | 1 | |
| Curie Temprature | 850°F/454°C | 850°F/454°C | 840°F/449°C | 1420°F/770°C |
| Minimum Operating Temprature | 4°K | 4°K | 4°K | 4°K |
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