• industrial neodymium magnet china
          Empowering you with magnetic solutions

          For tech companies who use permanent magnets in their innovative products, our know-how in magnet engineering and manufacturing speeds up your project sucess.

          Permanent Magnets

          Find high-performance magnets for diverse applications, supported by our expert knowledge and dedication to quality.

          Magnetic Assemblies

          Discover custom-designed, high-performance assemblies for various applications, backed by our expertise and commitment to precision and reliability.

  • About Tengye
        • Jonah Jin

          As the Managing Director of Tengye, I bring a wealth of knowledge and experience to the table, with expertise spanning sales, technical aspects, purchasing, and more. My all-around proficiency in the world of magnets and magnetic assemblies ensures that I can provide comprehensive solutions to meet our clients’ diverse needs. 

          Through my commitment to sharing industry insights and innovations in our blog, I aim to establish a strong foundation of trust and transparency between our valued customers and myself. Rest assured, at Tengye, your magnetic solutions are in capable and experienced hands.

  • Contact

N42 Magnet | Custom Neodymium Magnets

Get Custom Neodymium Magnets for Your Unique Applications with N42 Magnets - Powerful and Versatile Magnetic Solutions

Detailed information on N42 magnet

N42 neodymium magnet used to be the strongest N grade neodymium magnets. It’s still nowadays one of the commonest neodymium magnet grades. N means Neodymium and 42 means the maximum energy is 42 MGOe. N42 magnet has a residual magnetic flux (Br) of 12.8-13.2 kGs. 

Neodymium magnets are the strongest permanent magnet type commercially available. They are made of iron, boron, and rare earth alloys such as praseodymium-neodymium (PrNd). N42 magnet is widely used in holding applications. More than ten years ago, before the development of higher grades all the way to N55 magnet, N42 is considered the most powerful neodymium magnet grade of the day. For this reason, many applications still use N42 magnet as the component.

special-shaped neodymium magents N42 magnet

The theoretical maximum working temperature of N42 neodymium magnets is 80 degrees. It also depends on L/D ratio of the magnet. If your application is at room temperature, N42 magnet may be a sufficient option. For holding applications, N42 magnet is different from N35 neodymium magnets and N52 magnets in terms of magnetic flux density or holding force. Magnet grade N42 is something in between.

N42 neodymium magnet comes in a variety of shapes and sizes. A lot of rectangular neodymium magnets, neodymium disc magnets and countersink neodymium magnets are N42 grade. They are found in both industrial and consumer goods. Examples are neodymium pot magnets and rubber coated magnets, where N42 neodymium magnets are place within or upon a steel housing/plate.

N42 magnet applications

For application engineers, magnetic flux density can be a requirement when they choose a magnet grade. In layman terms, magnetic flux density is also known as magnetic field strength or surface gauss. You can refer to magnetic field calculator of kjmagnetics. This calculator provides users a reference based on an uncoated and unchamfered magnet. The real value is normally around 10% lower than theoretical one.

Tell us your project by filling out this inquiry form or send us an Email, we will get back to you within 24 hours.

Lu Qinsheng

Every customer deserves to be treated professionally and responsively.

Inquiry Form