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neodymium magnets

We offer yellow color magnets Nd2Fe14B - our store's offer. All "neodymium magnets" in our store are in stock for immediate delivery (see the list). See the magnet pricing for more details check the magnet price list

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UMT 11x17 colorless / N38 - board holder

board holder

Catalog no 230266

GTIN: 5906301814290

5

Diameter Ø [±0,1 mm]

11 mm

Height [±0,1 mm]

17 mm

Weight

3 g

Coating

[NiCuNi] nickel

1.54 with VAT / pcs + price for transport

1.25 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
1.25 ZŁ
1.54 ZŁ
price from 280 pcs
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1.45 ZŁ
price from 640 pcs
1.10 ZŁ
1.35 ZŁ

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Call us now +48 888 99 98 98 alternatively contact us by means of our online form our website.
Strength as well as structure of a neodymium magnet can be estimated with our our magnetic calculator.

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UMT 11x17 colorless / N38 - board holder

Specification/characteristics UMT 11x17 colorless / N38 - board holder
properties
values
Cat. no.
230266
GTIN
5906301814290
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Diameter Ø
11 mm [±0,1 mm]
Height
17 mm [±0,1 mm]
Weight
3 g [±0,1 mm]
Coating
[NiCuNi] nickel
Manufacturing Tolerance
± 0.1 mm

Magnetic properties of material N38

properties
values
units
coercivity bHc ?
860-915
kA/m
coercivity bHc ?
10.8-11.5
kOe
energy density [Min. - Max.] ?
287-303
BH max KJ/m
energy density [Min. - Max.] ?
36-38
BH max MGOe
remenance Br [Min. - Max.] ?
12.2-12.6
kGs
remenance Br [Min. - Max.] ?
1220-1260
T
actual internal force iHc
≥ 955
kA/m
actual internal force iHc
≥ 12
kOe
max. temperature ?
≤ 80
°C

Physical properties of NdFeB

properties
values
units
Vickers hardness
≥550
Hv
Density
≥7.4
g/cm3
Curie Temperature TC
312 - 380
°C
Curie Temperature TF
593 - 716
°F
Specific resistance
150
μΩ⋅Cm
Bending strength
250
Mpa
Compressive strength
1000~1100
Mpa
Thermal expansion parallel (∥) to orientation (M)
(3-4) x 106
°C-1
Thermal expansion perpendicular (⊥) to orientation (M)
-(1-3) x 10-6
°C-1
Young's modulus
1.7 x 104
kg/mm²

Shopping tips

The ideal choice would be neodymium magnets pin for magnetic boards, which are characterized by outstanding power of [N38] material when used on a magnetic board, and they stand out in terms of both numerous shades such as black, white, blue, green, orange, purple, red, and different sizes. Our magnetic pieces feature magnets of the largest available dimensions in relation to their plastic components, ensuring excellent adhesion. The dimensions of the magnets range from smaller ones with an 11 mm diameter to larger ones reaching 29 mm, with heights ranging from 17 mm to 38 mm. Additionally, our pricing policy is flexible depending on the quantity of units ordered, allowing for cost-effective acquisition of larger quantities.

Advantages and disadvantages of neodymium magnets NdFeB.

Besides their stability, neodymium magnets are valued for these benefits:

  • Their power remains stable, and after around ten years, it drops only by ~1% (theoretically),
  • They remain magnetized despite exposure to magnetic surroundings,
  • In other words, due to the shiny gold coating, the magnet obtains an stylish appearance,
  • The outer field strength of the magnet shows remarkable magnetic properties,
  • These magnets tolerate elevated temperatures, often exceeding 230°C, when properly designed (in relation to form),
  • The ability for precise shaping and adjustment to individual needs – neodymium magnets can be manufactured in a wide range of shapes and sizes, which amplifies their functionality across industries,
  • Wide application in advanced technical fields – they are utilized in hard drives, electromechanical systems, diagnostic apparatus along with high-tech tools,
  • Relatively small size with high magnetic force – neodymium magnets offer impressive pulling strength in tiny dimensions, which allows for use in compact constructions

Disadvantages of magnetic elements:

  • They are prone to breaking when subjected to a powerful impact. If the magnets are exposed to shocks, they should be placed in a protective case. The steel housing, in the form of a holder, protects the magnet from breakage , and at the same time enhances its overall durability,
  • High temperatures may significantly reduce the magnetic power of neodymium magnets. Typically, above 80°C, they experience permanent loss in performance (depending on height). To prevent this, we offer heat-resistant magnets marked [AH], capable of working up to 230°C, which makes them perfect for high-temperature use,
  • Due to corrosion risk in humid conditions, it is recommended to use sealed magnets made of synthetic coating for outdoor use,
  • The use of a protective casing or external holder is recommended, since machining threads in neodymium magnets is not feasible,
  • Health risk related to magnet particles may arise, in case of ingestion, which is significant in the family environments. Furthermore, small elements from these magnets have the potential to hinder health screening once in the system,
  • High unit cost – neodymium magnets are pricier than other types of magnets (e.g., ferrite), which can restrict large-scale applications

Caution with Neodymium Magnets

Never bring neodymium magnets close to a phone and GPS.

Neodymium magnets produce strong magnetic fields that interfere with magnetometers and compasses used in navigation, as well as internal compasses of smartphones and GPS devices.

The magnet coating is made of nickel, so be cautious if you have an allergy.

Studies clearly indicate a small percentage of people who suffer from metal allergies such as nickel. An allergic reaction often manifests as skin redness and rash. If you have a nickel allergy, try wearing gloves or avoid direct contact with nickel-plated neodymium magnets.

Keep neodymium magnets away from the wallet, computer, and TV.

Neodymium magnets generate intense magnetic fields that can destroy magnetic media such as floppy disks, video tapes, HDDs, credit cards, magnetic ID cards, cassette tapes, etc. devices. They can also damage videos, televisions, CRT computer monitors. Do not forget to keep neodymium magnets away from these electronic devices.

Neodymium magnets can become demagnetized at high temperatures.

Under specific conditions, Neodymium magnets may experience demagnetization when subjected to high temperatures.

Dust and powder from neodymium magnets are flammable.

Avoid drilling or mechanical processing of neodymium magnets. If the magnet is crushed into fine powder or dust, it becomes highly flammable.

Neodymium magnets are over 10 times more powerful than ferrite magnets (the ones in speakers), and their power can shock you.

On our website, you can find information on how to use neodymium magnets. This will help you avoid injuries and prevent damage to the magnets.

  Do not give neodymium magnets to youngest children.

Not all neodymium magnets are toys, so do not let children play with them. In the case of small magnets, they can be swallowed and cause choking. In such cases, the only solution is to undergo surgery to remove the magnets, and otherwise, it can even lead to death.

Neodymium magnets should not be near people with pacemakers.

In the case of neodymium magnets, there is a strong magnetic field. As a result, it interferes with the operation of a heart pacemaker. Even if the magnetic field does not affect the device, it can damage its components or deactivate the entire device.

It is crucial not to allow the magnets to pinch together uncontrollably or place your fingers in their path as they attract to each other.

Magnets may crack or crumble with careless joining to each other. Remember not to approach them to each other or have them firmly in hands at a distance less than 10 cm.

Neodymium magnetic are particularly delicate, which leads to damage.

In the event of a collision between two neodymium magnets, it can result in them getting chipped. They are coated with a shiny nickel plating similar to steel, but they are not as hard. In the case of a collision between two magnets, there can be a scattering of small sharp metal fragments in different directions. Protecting your eyes is essential.

Safety rules!

In order to illustrate why neodymium magnets are so dangerous, read the article - How very dangerous are strong neodymium magnets?.

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e-mail: bok@dhit.pl

tel: +48 888 99 98 98