Heat Resistance Alnico 5 Bar Magnets Rare Earth Bar Magnets High Strength
Price:
As negotiation
MOQ:
100pcs
Delivery Time:
20-25days
Brand:
UNMAG
Product Description
Heat Resistance Alnico 5 Bar Magnets - Rare Earth Bar Magnets with High Strength
Key Specifications
| Attribute | Value |
|---|---|
| Magnetization Direction | Axial, Radial, Multi-poles |
| Max Operating Temperature | 550℃ |
| Material | Cast Alnico |
| Hcj | ≥30 KA/m |
| BHmax | 1.13-9 MGOe |
| Grade | Alnico 5,8 Is Normally Used |
| Tolerance | ±0.05mm |
| Application | Generator, Microphone, Measuring Instrument |
Product Overview
Alnico magnets are permanent magnets composed of an aluminum-nickel-cobalt alloy, offering high magnetic properties, temperature stability, and moderate coercive force. Our cast Alnico magnets are formed through melting and molding processes, available in various grades with magnetization directions including axial, radial, and multi-poles.
Technical Features
- Excellent temperature stability for high heat applications (450-550℃)
- High residual induction and energy product compared to ceramic materials
- Low coercive force (more subject to demagnetization than ceramic/rare earth magnets)
- Hard and brittle material - not suitable for conventional machining
- Most common grades: Alnico 5 and 8
- Not recommended for repelling or high friction applications
Physical Properties
| Parameter | Value |
|---|---|
| Curie Temperature | 760 ~ 890℃ |
| Max Operating Temperature | 450 ~ 550℃ |
| Resistivity | 47 ~ 54 μΩ·cm |
| Hardness | 520 ~ 630 HV |
| Density | 6.9 ~ 7.3 g/cm³ |
| Relative Recoil Permeability | 1.7 ~ 4.7 μrec |
| Saturation Field Strength | 2.7 ~ 6.3 kOe / 215~500 kA/m |
| Temperature Coefficient of Br | -0.025 ~ -0.02%/℃ |
| Temperature Coefficient of iHc | +0.01 ~ +0.03 %/℃ |
Applications
Ideal for applications requiring high temperature resistance, strong magnetic performance, and long service life. Commonly used in:
- Generators
- Microphones
- Measuring instruments
Customization & Shipping
Brand: UNMAG
Origin: China
Delivery Time: 25-30 days
Packaging: Wrapped in protective plastic/cloth with clear labeling
Shipping: Available via air freight or ocean freight
Origin: China
Delivery Time: 25-30 days
Packaging: Wrapped in protective plastic/cloth with clear labeling
Shipping: Available via air freight or ocean freight
Our Alnico magnets deliver exceptional performance with maximum operating temperatures up to 550℃ and BHmax values ranging from 1.13 to 9 MGOe. Available in various grades (LNG37, Alnico5, Alnico8, Alnico9) with multiple magnetization direction options.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Xiamen Un Magnet Co.,Ltd.
Location
Room 503,Building C,No.319,Hubin East Road,Xiamen,China
Contact Person
Sales Department