China Neodymium And Ferrite Magnets Manufacturer & Supplier 
N38 grade is a performance grade of neodymium strong magnets, more commonly used, the following is about the meaning of N38 grade of neodymium magnets, magnetic performance data, Gaussian strength and tensile strength related introduction.
What is N38 magnet grade?
"N" is actually the first letter of neodymium magnets, the grades of sintered neodymium magnets begin with "N", so N38 is just a grade of neodymium magnets. The level of sintered neodymium magnets mainly are N35 / N38 / N40 / N42 / N45 / N48 N50 / N52 .There will be M H SH DH EH AH after the number of some grades. The difference between them is only the difference in the maximum temperature of the working temperature, such as the maximum temperature of N38 is 80 ° C, and the maximum temperature of N38M is 100 ° C.
The performances of N38 magnet grade:
Density: ≥7.5 (g/cm3)
Residual Induction (Br): 12.1-12.7KGs
Coercive Force (Hcb): 876-923KA/m 11.0-11.6KOe
Intrinsic Coercive Force (Hcj): ≥955KA/m ≥12KOe
Maximum Energy Product (BH): 287-310KJ/m³ 36-39MGOe
Max Working Temperature: 80℃
Is it be same pulling force and gauss strength of different specification and shape of N38 magnet?
No,If you only know the grade of magnet, it is not possible to determine the specific guass strength and pull force of the magnet. The grade only can decide the level of Guass strength, can not decide the specific data. And the pull force of the magnet is determined by Gauss strength and parameters of magnets, the higher the gauss, the greater the pull force of the magnet at the same specification and shape. Therefore, it can not think that the magnet of the surface strength of magnet is high so the pull force must be large! For example, the pull force of N50 D3 x 10mm ＜ the pull force of N33 10 x 5mm (but the surface strength is opposite).
For example, the larger the number after the letter N (the larger the number after the letter N, the higher the performance), the higher the Gauss level. So N48 has a higher Gauss than N38, and so does the pull force at the same specification and shape.
It should be noted that the magnetic strength is also affected by other factors, including the size, shape and magnetization of the magnet. Therefore, the specific magnetic strength may vary depending on the application and specific design.
The following is a list of Gauss strength data of different specifications and shapes：
Circular round neodymium magnet N38 grade surface magnetic strength reference;
N38 grade diameter 5mm, thickness 2mm round magnet surface magnetic strength of about 3040 Gauss
N38 grade circular magnet 6mmx4mm, surface magnetic field strength of about 4010 Gauss.
N38 Grade 6mm diameter x 3mm thickness: surface magnetic strength is 3800 gauss
N38 grade 3mmx4mm cylindrical magnetic field strength of about 2620 Gauss.
N38 ring neodymium magnet surface magnetic strength reference;
N38 Grade 4mm outer diameter x 2mm inner dia x 5.5mm thickness: surface magnetic strength is 1740 gauss (radial)
N38 Grade 4.8mm outer diameter x 2mm inner dia x 3mm thickness: surface magnetic strength is 2160 gauss (axial)
N38 Grade 10mm outer diameter x 5mm inner dia x 2.5mm thickness: surface magnetic strength is 3210 gauss (radial)
N38 Grade 10mm outer diameter x 6mm inner dia x 2.5mm thickness: surface magnetic strength is 1660 gauss(radial)
N38 Grade 10mm outer diameter x 6mm inner dia x 3mm thickness: surface magnetic strength is 1610 gauss (radial)
Rectangle shaped:
N38 Grade F3mm thickness x 4mm width x 10.6mm length(magnetizing direction): surface magnetic strength is 3180 gauss
N38 Grade F14mm length x 4mm width x 2mm thickness(magnetizing direction): surface magnetic strength is 2940 gauss
N38 Grade F30mm length x 10mm width x 3mm thickness(magnetizing direction): surface magnetic strength is 2050 gauss
N38 grade 20x5x2mm rectangular magnet has a magnetic field strength of about 2500 Gauss.
Square shaped:
N38 Grade F15mm length x 15mm width x 5mm thickness(magnetizing direction): surface magnetic strength is 2630 gauss
N38 Grade F30mm length x 30mm width x 6mm thickness(magnetizing direction): surface magnetic strength is 1660 gauss
N38 Grade F100mm length x 100mm width x 30mm thickness(magnetizing direction): surface magnetic strength is 2410 gauss
Cube shaped:
N38 Grade F12.7mm length and width and thickness: surface magnetic strength is 4430 gauss
N38 Grade F10mm length and width and thickness: surface magnetic strength is 4420 gauss
Application of N38 Grade magnets:
N38 magnets are widely used in various fields, such as electronic equipment, automotive industry, electric motors, medical equipment, acoustic equipment, magnetic sensors, magnetic clamping devices, etc.
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