Alloy 46 / 1.3926 Precision Alloy

Alloy 46 (46N) – Nickel-Iron Soft Magnetic Alloy

Technical Specifications

Chemical Composition:

• Nickel (Ni): 45-47%

• Iron (Fe): 53-55%

• Manganese (Mn): 0.3-0.6%

• Silicon (Si): 0.15-0.3%

• Copper (Cu): 0.2-0.5%

Magnetic Properties:

• Initial permeability (μi): 3,000-5,000

• Maximum permeability (μmax): 30,000-50,000

• Coercive force (Hc): 8-12 A/m

• Saturation induction (Bs): 1.5-1.6 T

Mechanical Properties:

• Tensile strength: 450-550 MPa

• Hardness: 120-150 HB

• Density: 8.25 g/cm³

Key Advantages

✔ High magnetic permeability
✔ Low hysteresis losses
✔ Excellent temperature stability (-60°C to +120°C)
✔ Good workability (rolling, stamping, machining)
✔ Superior corrosion resistance

Typical Applications

• High-frequency transformer cores

• Magnetic amplifiers

• Fluxgate sensors

• Electromagnetic shielding

• Audio frequency components

• Precision current transformers

Delivery Forms Alloy 46