High Temperature N42SH Rare Earth Magnet 1" x 1/2" x 1/2" Thick Neodymium NdFeB 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 |
1/2" (12.7 mm) |
| Pull Force |
Approx. 37 lbs |
| Material |
NdFeB (Neodymium-Iron-Boron) |
| Coating |
Nickel-Copper-Nickel (Ni-Cu-Ni) |
| Magnetization |
Through Thickness |
| Br Max |
13,200 Gauss |
| Maximum Operating Temperature |
300°F (150°C) |
| Certification |
ISO Certified, RoHS Certified, NdFeB Patent Licensed |
Quick Answers
| Question |
Answer |
| How strong is this magnet? |
Approximately 37 lbs of pull force under ideal conditions. |
| Is N42SH stronger than N35SH? |
Yes. N42SH is stronger than N40, N40H, N40SH, N38, N38H, N38SH, N35, N35H, and N35SH grades. |
| 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 moisture exposure or coating damage may eventually lead to corrosion. |
| What is it commonly used for? |
High-temperature motors, industrial automation, aerospace systems, automotive applications, manufacturing equipment, and engineering assemblies. |
Product Overview
High-temperature rare earth magnets provide exceptional magnetic performance while maintaining strength in elevated temperature environments. Super Magnet Store offers premium-quality N42SH neodymium magnets manufactured to stringent quality standards using advanced production technology. These magnets deliver powerful holding force and superior thermal stability for demanding industrial applications.
This N42SH neodymium block magnet measures 1" x 1/2" x 1/2" and generates approximately 37 lbs of pull force under ideal conditions. Manufactured from neodymium, iron, boron, and other minor elements, it delivers stronger magnetic performance than N40, N40H, N40SH, N38, N38H, N38SH, N35, N35H, and N35SH grades.
Designed specifically for elevated-temperature environments, this magnet offers a maximum operating temperature of 300°F (150°C). It is significantly stronger and often more cost-effective than other high-temperature magnet materials such as samarium cobalt (SmCo), Alnico, and ceramic magnets. 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 has been engineered to retain magnetic performance at elevated temperatures. N42SH magnets provide an excellent balance of magnetic strength, temperature resistance, and cost-effectiveness for industrial and engineering applications.
How Strong Is This Magnet?
This N42SH neodymium block magnet generates approximately 37 lbs of pull force under ideal conditions. Actual holding strength depends on steel thickness, surface finish, air gaps, operating temperature, and mounting configuration. With a Br Max rating of 13,200 Gauss, it delivers exceptional magnetic performance while maintaining stability at temperatures up to 300°F (150°C).
Technical Specifications
| Specification |
Value |
| Product Name |
High Temperature 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 |
1/2" (12.7 mm) |
| Coating |
Nickel-Copper-Nickel Triple Layer |
| Magnetization Direction |
Through Thickness (1/2") |
| Pull Force |
Approx. 37 lbs |
| Br Max |
13,200 Gauss |
| Maximum Operating Temperature |
300°F (150°C) |
| Certification |
ISO Certified, RoHS Certified |
| Patent Status |
NdFeB Patent Licensed |
Note: Pull force is an estimate only and should be tested for your specific application.
Magnet Grade Comparison
| Grade |
Relative Strength |
Typical Applications |
| N35SH |
Standard High Temp |
General industrial |
| N38SH |
Moderate High Temp |
Industrial equipment |
| N40SH |
High Temp |
Motors & sensors |
| N42SH |
Higher High Temp |
Elevated temperature engineering |
| N52 |
Maximum Strength |
Standard temperature applications |
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 |
| Automotive |
Motors & sensors |
| Aerospace |
High-temp assemblies |
| Industrial Automation |
Positioning systems |
| Engineering |
Product development |
| Energy |
Generators & turbines |
| Research |
Laboratory applications |
Common Questions About This Magnet
How much weight can this magnet hold?
This magnet provides approximately 37 lbs of pull force under ideal conditions. Actual holding capacity depends on surface material, temperature, air gaps, and application design.
What makes N42SH different from standard N42 magnets?
N42SH magnets are designed for elevated-temperature environments and can operate continuously up to 300°F (150°C) while maintaining magnetic performance.
Is N42SH stronger than N35SH?
Yes. N42SH provides significantly greater magnetic energy and holding force than N35SH, N38SH, and N40SH grades.
Can this magnet be used outdoors?
The Nickel-Copper-Nickel coating provides 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 1/2-inch thickness, with the north and south poles located on the 1" x 1/2" faces.
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
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Operates up to 300°F (150°C)
-
ISO & RoHS certified quality
-
NdFeB patent licensed
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Competitive pricing
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Wholesale discounts available
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Superior quality and performance guaranteed
