A-3 Alnico Magnetic Material,E FORU
Product Code : NI-S1516-CU-CU
A-3 Alnico Magnetic Material, is available in Bar (Round bar, Flat bar), Ribbon, Wire, Rods, Tube, Pipe, Foil, Plate, Sheet, Strip and Forging Stock.
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### **Product Introduction: A-3 Alnico Magnetic Material**
**A-3 Alnico** is an isotropic permanent magnet material from the Alnico family, recognized for its balanced magnetic properties and excellent thermal stability. As an isotropic grade, it can be magnetized in any direction without requiring orientation during manufacturing, making it particularly suitable for producing complex multi-pole magnetized components.
This material maintains the characteristic advantages of Alnico magnets - high Curie temperature, outstanding temperature stability, and good corrosion resistance - while offering a cost-effective solution for applications requiring moderate magnetic performance with excellent structural integrity.
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#### **1. Chemical Composition (Weight %)**
The typical chemical composition of A-3 Alnico is as follows:
| Element | Content (%) |
| :--- | :--- |
| **Iron (Fe)** | Balance |
| **Aluminum (Al)** | 7.5 - 9.5 |
| **Nickel (Ni)** | 13.5 - 17.0 |
| **Cobalt (Co)** | 11.0 - 14.0 |
| **Copper (Cu)** | 2.5 - 4.0 |
| **Titanium (Ti)** | 0.5 - 1.0 |
| **Other Elements** | ≤ 1.0 |
The balanced composition creates the characteristic two-phase microstructure that enables Alnico's unique magnetic properties through shape anisotropy.
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#### **2. Physical & Magnetic Properties**
**Magnetic Properties (Typical at 20°C):**
| Property | Value (Typical) | Unit |
| :--- | :--- | :--- |
| **Residual Induction (Bᵣ)** | 6.8 - 7.2 | kG (kiloGauss) |
| **Coercivity (Hᶜ)** | 1.3 - 1.5 | kOe (kiloOersteds) |
| **Intrinsic Coercivity (Hᶜⱼ)** | 1.4 - 1.6 | kOe (kiloOersteds) |
| **Maximum Energy Product ((BH)ₘₐₓ)** | 1.3 - 1.6 | MGOe (Mega-Gauss Oersteds) |
**Physical & Mechanical Properties:**
| Property | Value | Unit |
| :--- | :--- | :--- |
| **Density** | 6.9 - 7.1 | g/cm³ |
| **Coefficient of Thermal Expansion (20-500°C)** | ~11.2 | μm/m·°C |
| **Curie Temperature (T
Packing of
Standard Packing:
Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 3139 gallon liquid totes Special package is available on request.
