A-5 Alnico Magnetic Material,E FORU

### **Product Introduction: A-5 Alnico Magnetic Material** **A-5 Alnico** is a high-performance isotropic permanent magnet material from the Alnico family, offering enhanced magnetic properties while maintaining the characteristic advantages of Alnico materials. As an isotropic grade, it provides design flexibility by allowing magnetization in any direction without orientation constraints during manufacturing. This material represents an optimal balance between magnetic performance and manufacturing versatility, making it suitable for applications requiring higher energy product than standard isotropic grades while maintaining the excellent thermal stability and corrosion resistance inherent to Alnico materials. --- #### **1. Chemical Composition (Weight %)** The typical chemical composition of A-5 Alnico is as follows: | Element | Content (%) | | :--- | :--- | | **Iron (Fe)** | Balance | | **Aluminum (Al)** | 8.0 - 9.0 | | **Nickel (Ni)** | 14.0 - 15.0 | | **Cobalt (Co)** | 24.0 - 25.0 | | **Copper (Cu)** | 3.0 - 3.5 | | **Titanium (Ti)** | 0.5 - 1.0 | | **Niobium (Nb)** | 0.5 - 1.0 | | **Other Elements** | ≤ 0.5 | The optimized composition, particularly the higher cobalt content compared to lower-grade isotropic Alnicos, contributes to improved magnetic performance while maintaining isotropic characteristics. --- #### **2. Physical & Magnetic Properties** **Magnetic Properties (Typical at 20°C):** | Property | Value (Typical) | Unit | | :--- | :--- | :--- | | **Residual Induction (Bᵣ)** | 10.5 - 11.5 | kG (kiloGauss) | | **Coercivity (Hᶜ)** | 1.4 - 1.6 | kOe (kiloOersteds) | | **Intrinsic Coercivity (Hᶜⱼ)** | 1.5 - 1.7 | kOe (kiloOersteds) | | **Maximum Energy Product ((BH)ₘₐₓ)** | 5.0 - 5.5 | MGOe (Mega-Gauss Oersteds) | **Physical & Mechanical Properties:** | Property | Value | Unit | | :--- | :--- | :--- | | **Density** | 7.2 - 7.3 | g/cm³ | | **Coefficient of Thermal Expansion (20-500°C)** | ~11.5 | 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 3140 gallon liquid totes Special package is available on request.