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SKU: NB034-0-SH

High Temp N42SH Neodymium Magnets 1 in x 1/2 in x 1/4 in Rare Earth Block

$ 6.69
$ 6.69

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High Temp N42SH Neodymium Magnets 1" x 1/2" x 1/4" Thick Rare Earth Block Magnet

Quick Facts

Attribute Value
Magnet Type High Temperature Neodymium Rare Earth Block Magnet
Grade N42SH
Shape Block
Length 1" (25.4 mm)
Width 1/2" (12.7 mm)
Height 1/4" (6.35 mm)
Pull Force Over 21 lbs
Material NdFeB (Neodymium-Iron-Boron)
Coating Nickel-Copper-Nickel (Ni-Cu-Ni)
Magnetization Through Thickness
Br Max 14,200 Gauss
Maximum Operating Temperature 300°F (150°C)
Certification ISO Certified

Quick Answers

Question Answer
How strong is this magnet? Over 21 lbs of pull force under ideal conditions.
Is N42SH stronger than N35? Yes. N42SH provides significantly greater magnetic strength than N40, N38, and N35 grades while offering high-temperature performance.
What is this magnet made of? NdFeB (Neodymium-Iron-Boron) rare earth material.
Can this magnet rust? The Nickel-Copper-Nickel coating provides excellent corrosion resistance, but prolonged exposure to moisture or coating damage may eventually lead to corrosion.
What is it commonly used for? High-temperature industrial equipment, motors, sensors, automation systems, engineering projects, and magnetic assemblies.

Product Overview

Neodymium magnets are the world's strongest commercially available permanent magnets. Super Magnet Store offers premium-quality N42SH neodymium magnets manufactured to stringent quality standards using advanced production technology. These magnets provide exceptional magnetic strength while maintaining reliable performance in elevated temperature environments.

This High Temp N42SH neodymium block magnet measures 1" x 1/2" x 1/4" and generates over 21 lbs of pull force under ideal conditions. Manufactured from neodymium, iron, boron, and other minor elements, it delivers stronger magnetic performance than N40, N38, and N35 grades while providing superior heat resistance.

With a maximum operating temperature of 300°F (150°C), this magnet is ideal for applications where standard neodymium magnets may lose performance due to elevated temperatures. The durable Nickel-Copper-Nickel triple-layer coating enhances corrosion resistance and long-term durability.

What Is a High Temperature Neodymium Block Magnet?

A high-temperature neodymium block magnet is a rare earth permanent magnet made from neodymium, iron, and boron (NdFeB) that is specifically engineered to maintain magnetic performance at elevated temperatures. N42SH magnets offer an excellent balance of magnetic strength and thermal stability, making them ideal for industrial, automotive, aerospace, and engineering applications.

How Strong Is This Magnet?

This N42SH neodymium block magnet generates over 21 lbs of pull force under ideal conditions. Actual holding strength depends on factors such as steel thickness, surface finish, air gaps, operating temperature, and mounting configuration. With a Br Max rating of 14,200 Gauss, it delivers powerful magnetic performance while maintaining stability in high-temperature environments.

Technical Specifications

Specification Value
Product Name High Temp N42SH Neodymium Block Magnet
Material Neodymium Iron Boron (NdFeB)
Grade N42SH
Shape Block
Length 1" (25.4 mm)
Width 1/2" (12.7 mm)
Thickness 1/4" (6.35 mm)
Coating Nickel-Copper-Nickel Triple Layer
Magnetization Direction Through Thickness (1/4")
Pole Orientation On the 1" x 1/2" Surfaces
Pull Force Over 21 lbs
Br Max 14,200 Gauss
Maximum Operating Temperature 300°F (150°C)
Certification ISO Certified

Magnet Grade Comparison

Grade Relative Strength Typical Applications
N35 Standard General purpose
N38 Moderate Consumer products
N40 High Industrial
N42 Higher Engineering
N42SH High Temp Elevated temperature applications
N52 Maximum High-performance

Block Magnet Size Comparison

Size Typical Applications
Small Blocks Electronics
Medium Blocks Fixtures & Assemblies
Large Blocks Industrial Equipment

Applications by Industry

Industry Common Uses
Manufacturing Fixtures & tooling
Engineering Product development
Automation Positioning systems
Automotive Sensors & actuators
Electronics Assemblies & sensors
Industrial Equipment High-temperature applications
Research Laboratory projects

Common Questions About This Magnet

How much weight can this magnet hold?

This magnet provides over 21 lbs of pull force under ideal conditions. Actual holding capacity depends on the mounting surface, air gap, temperature, and application design.

What makes N42SH different from standard N42 magnets?

N42SH magnets are engineered for elevated temperature environments and can operate up to 300°F (150°C) while maintaining magnetic performance.

Can this magnet be used outdoors?

The Nickel-Copper-Nickel coating provides good corrosion resistance, but additional protection is recommended for prolonged outdoor exposure.

Can it rust?

The protective nickel coating helps resist corrosion; however, moisture exposure and coating damage can eventually result in 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 1" x 1/2" surfaces.

Do you offer wholesale pricing?

Yes. Contact Super Magnet Store for competitive volume pricing and wholesale discounts on high-temperature neodymium magnets.

Why Buy From Super Magnet Store?

  • Premium NdFeB rare earth magnets

  • High-temperature N42SH performance

  • Up to 300°F (150°C) operating temperature

  • Consistent magnetic performance

  • ISO-certified manufacturing

  • Competitive pricing

  • Wholesale discounts available

  • Superior quality and performance guaranteed

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Total price$ 10.45

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