Understanding Magnet Strength Chart and Grades

Do you need a magnet but don't know which strength to choose? This guide will help you make an informed decision. There are different strengths of magnets, each with its own uses, from weak refrigerator magnets to powerful neodymium magnets. Whether you're a DIY enthusiast, a science buff, or just need a magnet for everyday use, understanding the magnet strength chart is important.

We'll go through the strengths, uses, and limitations of each type. By the end of this guide, you'll have all the information you need to choose the right magnet confidently. Let's explore the fascinating world of magnetism together!

What is the Magnet Strength Chart?

The Magnet Strength Chart could help people determine the strength of magnets for different uses. Magnets are graded based on their maximum energy product, which measures the magnetic energy stored in the magnet. This energy product is expressed in units of Mega-Gauss-Oersteds (MGOe) or kilojoules per cubic meter (kJ/m³). The higher the grade, the stronger the magnet.

However, other factors also affect how magnets perform, like their shape, size, and material. But by checking the Magnet Strength Chart, people can have a better idea of the relative strength of different magnets.

Magnet Strength Grades

Magnets come in different grades based on their strength, with the most common grading systems being the N, C, and SmCo series. Here are the details:

1. N Series (Neodymium Magnets):

   These are the strongest magnets available, with a strength ranging from 27 MGOe to 55 MGOe. The N grade is followed by a number, like N35 or N52, which shows the highest energy product. They are used in motors, generators, therapy magnets, and audio equipment.

2. C Series (Ceramic Magnets):

   These magnets are relatively weaker than Neodymium, with a strength ranging from 1 MGOe to 4.5 MGOe. The C grade is accompanied by a number, such as C1 or C8, that shows the maximum energy product. They are commonly used in speakers, magnetic separators, and refrigerator magnets.

3. SmCo Series (Samarium Cobalt Magnets):

   These are high-performance magnets, with a strength ranging from 18 MGOe to 32 MGOe. The SmCo grade comes with a number, like SmCo18 or SmCo32, that shows how much energy it can hold at most. They are used in aerospace and military applications.