A-5DG Alnico Magnetic Material,E FORU

### **Product Introduction: A-5DG Alnico Magnetic Material** **A-5DG Alnico** is a specialized isotropic permanent magnet material from the Alnico family, designed to provide excellent magnetic performance with enhanced mechanical properties. The "DG" designation typically indicates a specific grain-oriented or directionally controlled version that offers improved consistency and reliability in magnetic characteristics. This material combines the traditional advantages of Alnico magnets - exceptional thermal stability, high Curie temperature, and good corrosion resistance - with optimized processing to deliver more predictable and uniform magnetic performance across production batches. --- #### **1. Chemical Composition (Weight %)** The typical chemical composition of A-5DG Alnico is as follows: | Element | Content (%) | | | | | **Iron (Fe)** | Balance | | **Aluminum (Al)** | 7.8 - 8.5 | | **Nickel (Ni)** | 13.5 - 15.5 | | **Cobalt (Co)** | 23.5 - 25.0 | | **Copper (Cu)** | 3.0 - 3.8 | | **Titanium (Ti)** | 0.3 - 0.7 | | **Niobium (Nb)** | 0.8 - 1.3 | | **Silicon (Si)** | 0.1 - 0.3 | | **Other Elements** | ≤ 0.2 | The composition is carefully balanced to promote the formation of the characteristic two-phase microstructure that gives Alnico its unique magnetic properties, with particular attention to consistency in grain structure. --- #### **2. Physical & Magnetic Properties** **Magnetic Properties (Typical at 20°C):** | Property | Value (Typical) | Unit | | | | | | **Residual Induction (Bᵣ)** | 12.5 - 13.0 | kG (kiloGauss) | | **Coercivity (Hᶜ)** | 1.45 - 1.65 | kOe (kiloOersteds) | | **Intrinsic Coercivity (Hᶜⱼ)** | 1.55 - 1.75 | kOe (kiloOersteds) | | **Maximum Energy Product ((BH)ₘₐₓ)** | 6.5 - 7.2 | MGOe (Mega-Gauss Oersteds) | **Physical & Mechanical Properties:** | Property | Value | Unit | | | | | | **Density** | 7.25 - 7.35 | g/cm³ | | **Coefficient of Thermal Expansion (20-500°C)** | 11.2 - 12.0 | 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 3142 gallon liquid totes Special package is available on request.