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SKU: NB016A

N42 Neodymium Bar Magnets 1/2 x 1/4 x 1/8 inch Rare Earth

$ 0.54
$ 0.54

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Neodymium Bar Magnets N42 1/2" x 1/4" x 1/8" Thick Rare Earth Magnets

Quick Facts

Attribute Value
Magnet Type Neodymium Rare Earth Block Magnet
Grade N42
Shape Block / Bar
Length 1/2" (12.7 mm)
Width 1/4" (6.35 mm)
Height 1/8" (3.18 mm)
Pull Force Over 6.5 lbs
Material NdFeB (Neodymium-Iron-Boron)
Coating Nickel-Copper-Nickel (Ni-Cu-Ni)
Magnetization Through Thickness
Br Max 13,200 Gauss
Certification ISO Certified

Quick Answers

Question Answer
How strong is this magnet? Over 6.5 lbs of pull force under ideal conditions.
Is N42 stronger than N35? Yes. N42 magnets provide significantly greater magnetic strength than N35, N38, and N40 grades.
What is this magnet made of? NdFeB rare earth material.
Can this magnet rust? The nickel coating provides excellent corrosion resistance, but prolonged exposure to moisture may eventually cause corrosion if the coating is damaged.
What is it commonly used for? Manufacturing fixtures, electronics, engineering prototypes, robotics, magnetic assemblies, hobby projects, and industrial applications.

Product Overview

Neodymium bar magnets are the world's strongest commercially available bar magnets. Applied Magnets offers premium-quality neodymium bar magnets manufactured to stringent quality standards using advanced production technology. Our magnets deliver exceptional strength, consistent performance, and outstanding value for industrial, commercial, and personal applications.

This N42 neodymium bar magnet measures 1/2" x 1/4" x 1/8" and provides over 6.5 pounds of pull force despite its compact size. Manufactured from neodymium, iron, boron, and other minor rare earth elements, it delivers superior magnetic performance compared to lower grades such as N35, N38, and N40.

The magnet features a durable Nickel-Copper-Nickel triple-layer coating that helps protect against corrosion while maintaining an attractive finish. Manufactured under ISO-certified quality standards, these magnets provide reliable performance for demanding applications where strength and consistency matter.

What Is a Neodymium Block Magnet?

A neodymium block magnet is a rectangular or cube-shaped rare earth permanent magnet made from neodymium, iron, and boron (NdFeB). Block magnets provide strong holding force and a large contact surface, making them ideal for industrial, engineering, manufacturing, and DIY applications.

How Strong Is This Magnet?

This N42 neodymium bar magnet generates over 6.5 pounds of pull force under ideal conditions. Actual holding strength depends on the thickness and composition of the steel surface, air gaps, mounting method, and application environment. With a BrMax of 13,200 Gauss, this magnet delivers excellent magnetic performance and is considerably stronger than N35, N38, and N40 magnets of comparable size.

Technical Specifications

Specification Value
Product Name N42 Neodymium Bar Magnet
Material Neodymium Iron Boron (NdFeB)
Grade N42
Shape Block / Bar
Length 1/2" (12.7 mm)
Width 1/4" (6.35 mm)
Thickness 1/8" (3.18 mm)
Coating Nickel-Copper-Nickel Triple Layer
Magnetization Direction Through Thickness (1/8")
Pull Force Over 6.5 lbs
Br Max 13,200 Gauss
Certification ISO Certified
Operating Temperature Up to 176°F (80°C)

Note: Pull force is an estimate only. Actual performance varies by application and should be tested under real-world conditions.

Magnet Grade Comparison

Grade Relative Strength Typical Applications
N35 Standard General purpose
N38 Moderate Consumer products
N40 High Industrial
N42 Higher Engineering
N52 Maximum High-performance

Block Magnet Size Comparison

Size Typical Applications
Small Blocks Electronics
Medium Blocks Fixtures
Large Blocks Industrial assemblies

Applications by Industry

Industry Common Uses
Manufacturing Fixtures & tooling
Engineering Product development
Robotics Motion systems
Electronics Sensors & assemblies
Education STEM projects
DIY Custom builds

Common Questions About This Magnet

How much weight can this magnet hold?

This magnet provides over 6.5 lbs of pull force under ideal conditions. Actual holding capacity depends on surface material, thickness, and application setup.

Is N42 stronger than N35?

Yes. N42 magnets offer significantly more magnetic energy and holding power than N35 magnets of the same dimensions.

Can this magnet be used outdoors?

The nickel coating provides corrosion resistance, but prolonged exposure to harsh outdoor environments is not recommended without additional protection.

Can it rust?

While the Nickel-Copper-Nickel coating helps prevent corrosion, damaged coatings or long-term exposure to moisture can eventually lead to rust.

What direction is it magnetized?

This magnet is magnetized through the thickness (1/8"), with the north and south poles located on the large flat faces.

Do you offer wholesale pricing?

Yes. Applied Magnets offers volume discounts and wholesale pricing for manufacturers, distributors, educational institutions, and commercial buyers.

Why Buy From Applied Magnets?

  • Premium NdFeB rare earth magnets

  • Consistent magnetic performance

  • ISO-certified manufacturing

  • Competitive pricing

  • Wholesale discounts available

  • Superior quality and performance guaranteed

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Total price$ 4.30

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