•

SKU: NB020

Rare Earth Magnets 1/2 in x 1/2 in X 1/4 in Neodymium Block N42

$ 4.00
$ 1.56
$ 4.00
$ 1.56

∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors

Rare Earth Magnets N42 Grade 1/2" x 1/2" x 1/4" Thick Neodymium Iron Boron NdFeB Block Magnet

Quick Facts

Attribute Value
Magnet Type Neodymium Rare Earth Block Magnet
Grade N42
Shape Block
Length 1/2" (12.7 mm)
Width 1/2" (12.7 mm)
Height 1/4" (6.35 mm)
Pull Force Approx. 15 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? Approximately 15 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 (Neodymium-Iron-Boron) rare earth material.
Can this magnet rust? The triple-layer nickel coating helps protect against corrosion, but damaged coatings or prolonged moisture exposure can eventually lead to rust.
What is it commonly used for? Manufacturing fixtures, engineering projects, magnetic assemblies, robotics, electronics, product development, and DIY applications.

Product Overview

Rare earth neodymium NdFeB magnets are the world's strongest commercially available permanent magnets. Applied Magnets offers premium-quality magnets manufactured to strict quality standards using advanced production technology. Our magnets provide exceptional strength, reliable performance, and outstanding value for industrial, commercial, and personal applications.

This N42 neodymium block magnet measures 1/2" x 1/2" x 1/4" and delivers approximately 15 pounds of pull force under ideal conditions. Manufactured from neodymium, iron, boron, and other minor elements, it provides superior magnetic performance compared to lower grades such as N35, N38, and N40.

Each magnet is protected by a durable Nickel-Copper-Nickel triple-layer coating that helps resist corrosion while maintaining a professional appearance. Manufactured under ISO-certified quality standards, these magnets deliver consistent magnetic performance and dependable reliability for demanding applications.

What Is a Neodymium Block Magnet?

A neodymium block magnet is a rectangular or square-shaped rare earth permanent magnet made from neodymium, iron, and boron (NdFeB). Block magnets provide exceptional holding force and a large contact surface, making them ideal for industrial equipment, manufacturing fixtures, engineering projects, robotics, electronics, and custom magnetic assemblies.

How Strong Is This Magnet?

This N42 neodymium block magnet generates approximately 15 pounds of pull force under ideal conditions. Actual holding strength depends on the thickness and composition of the steel surface, air gaps, alignment, temperature, and mounting conditions. With a BrMax rating of 13,200 Gauss, this magnet delivers powerful magnetic performance in a compact form factor.

Technical Specifications

Specification Value
Product Name N42 Neodymium Block Magnet
Material Neodymium Iron Boron (NdFeB)
Grade N42
Shape Block
Length 1/2" (12.7 mm)
Width 1/2" (12.7 mm)
Thickness 1/4" (6.35 mm)
Coating Nickel-Copper-Nickel Triple Layer
Magnetization Direction Through Thickness
Pull Force Approx. 15 lbs
Br Max 13,200 Gauss
Certification ISO Certified
Operating Temperature Up to 176°F (80°C)

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 Assemblies & sensors
Education STEM projects
DIY Custom builds

Common Questions About This Magnet

How much weight can this magnet hold?

This magnet provides approximately 15 lbs of pull force under ideal conditions. Actual holding capacity depends on the application, mounting surface, and environmental conditions.

Is N42 stronger than N35?

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

Can this magnet be used outdoors?

The nickel coating offers good corrosion resistance, but additional protection is recommended for long-term outdoor use.

Can it rust?

The Nickel-Copper-Nickel coating helps protect against corrosion. However, prolonged exposure to moisture or damage to the coating may eventually cause rust.

What direction is it magnetized?

This magnet is magnetized through the 1/4-inch thickness, with the north and south poles located on the two 1/2" x 1/2" faces.

Do you offer wholesale pricing?

Yes. Contact Applied Magnets for competitive volume pricing and wholesale discounts on rare earth magnets.

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

Frequently Bought Together

Total price$ 5.32

Complementary products

    • Free Shipping To US

      Free For All Orders. Minimum Required.

    • 30 - Day Return Policy

      Order Wthout Worry

    • Fast Delivery Time

      3-5 Days Shipping Time