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Permanent Magnets

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Permanent Magnet Materials

Permanent magnets are at the core of countless engineered solutions across medical devices, motors, pumps, sensors, and robotics...

Neodymium
Samarium Cobalt
Ferrite
Alnico

Neodymium Magnets

High strength, compact, widely used in advanced applications.

Common Applications:

  • High-efficiency motors
  • Miniaturized sensors and actuators
  • Robotics and automation systems
  • Precision medical devices

Engineering Considerations:

  • High strength-to-size ratio
  • Sensitive to corrosion (coatings available)
  • Temp stability up to ~180°C (higher with special grades)

Available Services:

  • Material selection
  • Magnetic modeling
  • Custom geometries
  • Protective coatings

Magnetic Properties of Sintered
Neodymium Magnets

Grade Remanence Coercivity Max Energy Product Temperaturet
Coefficient		 Max Working
Temperature
Br HCB HCJ (BH)max α(Br) β(HCJ) TWMax
T KGs KA/m KOe KA/m KOe Kl/m3 MGOe %/°C %/°C °C
N35 1.17-1.22 11.7-12.2 ≥867 ≥10.9 ≥955 ≥12 263-287 33-36 -0.12 -0.60 80
N38 1.22-1.25 12.2-12.5 ≥899 ≥11.3 ≥955 ≥12 287-310 36-39 -0.12 -0.60 80
N40 1.25-1.28 12.5-12.8 ≥907 ≥11.4 ≥955 ≥12 302-326 38-41 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
M N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80

Coatings & Environmental Considerations

We engineer for longevity under extreme conditions. From sterilization in medical devices to fluid exposure in pumps, we guide coating selection to protect magnetic properties.Coating Options: NiCuNi, Parylene, Epoxy, Gold, Teflon/PTFE

Magnet Material Comparison Chart

Material
Max Operating Temp (°C)
Strength
Corrosion Resistance
Cost
NdFeB
80–180 (up to 200+)
Highest
Low (needs coating)
$$
SmCo
250–350+
High
Very High
$$$
Ferrite
250+
Medium
Excellent
$
Alnico
500+
Medium
Good
$$

Samarium Cobalt Magnets

Ideal for high-temp and harsh environments.

Common Applications:

  • Aerospace and defense
  • High-temp motors
  • Implantable and biocompatible medical devices

Engineering Considerations:

  • Temp tolerance up to 350°C+
  • High resistance to demagnetization
  • Naturally corrosion-resistant (no coating needed)

Available Services:

  • Material selection
  • Magnetic modeling
  • Custom geometries
  • Protective coatings

Magnetic Properties of Sintered
Neodymium Magnets

Grade Remanence Coercivity Max Energy Product Temperaturet
Coefficient		 Max Working
Temperature
Br HCB HCJ (BH)max α(Br) β(HCJ) TWMax
T KGs KA/m KOe KA/m KOe Kl/m3 MGOe %/°C %/°C °C
N35 1.17-1.22 11.7-12.2 ≥867 ≥10.9 ≥955 ≥12 263-287 33-36 -0.12 -0.60 80
N38 1.22-1.25 12.2-12.5 ≥899 ≥11.3 ≥955 ≥12 287-310 36-39 -0.12 -0.60 80
N40 1.25-1.28 12.5-12.8 ≥907 ≥11.4 ≥955 ≥12 302-326 38-41 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
M N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80

Coatings & Environmental Considerations

We engineer for longevity under extreme conditions. From sterilization in medical devices to fluid exposure in pumps, we guide coating selection to protect magnetic properties.Coating Options: NiCuNi, Parylene, Epoxy, Gold, Teflon/PTFE

Magnet Material Comparison Chart

Material
Max Operating Temp (°C)
Strength
Corrosion Resistance
Cost
NdFeB
80–180 (up to 200+)
Highest
Low (needs coating)
$$
SmCo
250–350+
High
Very High
$$$
Ferrite
250+
Medium
Excellent
$
Alnico
500+
Medium
Good
$$

Ferrite Magnets

Cost-effective and corrosion-resistant.

Overview:

Ferrite magnets, also known as ceramic magnets, offer exceptional intrinsic coercivity and high resistance to demagnetization at a low cost.

Common Applications:

  • Pumps and fluid handling
  • Automotive systems
  • Industrial brackets and sensors

Properties:

  • Excellent corrosion resistance
  • Moderate magnetic strength
  • High temperature stability (up to 250°C)

Magnetic Properties of Sintered
Neodymium Magnets

Grade Remanence Coercivity Max Energy Product Temperaturet
Coefficient		 Max Working
Temperature
Br HCB HCJ (BH)max α(Br) β(HCJ) TWMax
T KGs KA/m KOe KA/m KOe Kl/m3 MGOe %/°C %/°C °C
N35 1.17-1.22 11.7-12.2 ≥867 ≥10.9 ≥955 ≥12 263-287 33-36 -0.12 -0.60 80
N38 1.22-1.25 12.2-12.5 ≥899 ≥11.3 ≥955 ≥12 287-310 36-39 -0.12 -0.60 80
N40 1.25-1.28 12.5-12.8 ≥907 ≥11.4 ≥955 ≥12 302-326 38-41 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
M N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80

Coatings & Environmental Considerations

We engineer for longevity under extreme conditions. From sterilization in medical devices to fluid exposure in pumps, we guide coating selection to protect magnetic properties.Coating Options: NiCuNi, Parylene, Epoxy, Gold, Teflon/PTFE

Magnet Material Comparison Chart

Material
Max Operating Temp (°C)
Strength
Corrosion Resistance
Cost
NdFeB
80–180 (up to 200+)
Highest
Low (needs coating)
$$
SmCo
250–350+
High
Very High
$$$
Ferrite
250+
Medium
Excellent
$
Alnico
500+
Medium
Good
$$

Alnico Magnets

High temperature stability and good corrosion resistance.

Common Applications:

  • Guitar pickups
  • Sensors and relays
  • High-temperature industrial applications

Engineering Considerations:

  • Excellent temperature stability up to 500°C+
  • Moderate magnetic strength
  • Good corrosion resistance

Available Services:

  • Material selection
  • Magnetic modeling
  • Custom geometries
  • Protective coatings

Magnetic Properties of Sintered
Neodymium Magnets

Grade Remanence Coercivity Max Energy Product Temperaturet
Coefficient		 Max Working
Temperature
Br HCB HCJ (BH)max α(Br) β(HCJ) TWMax
T KGs KA/m KOe KA/m KOe Kl/m3 MGOe %/°C %/°C °C
N35 1.17-1.22 11.7-12.2 ≥867 ≥10.9 ≥955 ≥12 263-287 33-36 -0.12 -0.60 80
N38 1.22-1.25 12.2-12.5 ≥899 ≥11.3 ≥955 ≥12 287-310 36-39 -0.12 -0.60 80
N40 1.25-1.28 12.5-12.8 ≥907 ≥11.4 ≥955 ≥12 302-326 38-41 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
M N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80
N42 1.25-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.60 80

Coatings & Environmental Considerations

We engineer for longevity under extreme conditions. From sterilization in medical devices to fluid exposure in pumps, we guide coating selection to protect magnetic properties.Coating Options: NiCuNi, Parylene, Epoxy, Gold, Teflon/PTFE

Magnet Material Comparison Chart

Material
Max Operating Temp (°C)
Strength
Corrosion Resistance
Cost
NdFeB
80–180 (up to 200+)
Highest
Low (needs coating)
$$
SmCo
250–350+
High
Very High
$$$
Ferrite
250+
Medium
Excellent
$
Alnico
500+
Medium
Good
$$
Chart Image

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