6003 Aluminum alloy,Aluminum 6003 alloy,E FORU

### **Introduction to 6003 Aluminum Alloy** **6003 Aluminum Alloy** is a heat-treatable alloy from the aluminum-magnesium-silicon (Al-Mg-Si) family. It is known for its excellent extrudability, good strength, and high corrosion resistance. Primarily used in architectural and structural applications, 6003 offers a superb combination of mechanical properties, surface finish, and anodizing response, making it a versatile and economical choice for a wide range of extruded products. --- ### **1. International Standards** 6003 Aluminum Alloy is recognized under several key international standards, which define its chemical composition and temper designations. * **AA (Aluminum Association, USA):** AA 6003 * **UNS (Unified Numbering System):** UNS A96003 * **ISO (International Organization for Standardization):** AlMg0.5Si * **EN (European Norm):** EN AW-6003 --- ### **2. Chemical Composition** The typical chemical composition (in weight percentage) as per AA standard is outlined in the table below. | Element | Content (%) | | :--- | :--- | | **Aluminum (Al)** | Balance | | **Silicon (Si)** | 0.35 - 1.0 | | **Magnesium (Mg)** | 0.5 - 1.1 | | **Manganese (Mn)** | ≤ 0.8 | | **Copper (Cu)** | ≤ 0.10 | | **Iron (Fe)** | ≤ 0.35 | | **Chromium (Cr)** | ≤ 0.30 | | **Zinc (Zn)** | ≤ 0.20 | | **Titanium (Ti)** | ≤ 0.10 | | **Others (each)** | ≤ 0.05 | | **Others (total)** | ≤ 0.15 | **Key Takeaway:** The balanced Mg and Si content form Magnesium Silicide (Mg₂Si), which is the basis for its strengthening through heat treatment (precipitation hardening). The low copper content contributes to its excellent corrosion resistance. --- ### **3. Physical Properties** The following table lists the typical physical properties of 6003 aluminum alloy. | Property | Metric Value | Imperial Value | | :--- | :--- | :--- | | **Density** | 2.70 g/cm³ | 0.0975 lb/in³ | | **Melting Range** | ~ 615 - 655 °C | ~ 1140 - 1210 °F | | **Coefficient of Thermal Expansion** | 23.4 x 10⁻⁶/°C (20-100°C) | 13.0 x 10⁻⁶/°F (68-212°F) | | **Thermal Conductivity** | 190 - 210 W/m·K | 1117 - 1239 BTU·in/(hr·ft²·°F) | | **Electrical Conductivity** | ~ 50-55% IACS | ~ 50-55% IACS | | **Modulus of Elasticity** | 69 GPa | 10,000 ksi | --- ### **4. Mechanical Properties** Mechanical properties vary significantly with temper (heat treatment condition). The following are typical minimum values for extruded sections. **Temper: T5** (Cooled from an elevated temperature shaping process and artificially aged) * **Tensile Strength:** 170 MPa (25 ksi) * **Yield Strength (0.2% Offset):** 110 MPa (16 ksi) * **Elongation (% in 50mm):** 10% **Temper: T6** (Solution heat-treated and artificially aged) * **Tensile Strength:** 220 MPa (32 ksi) * **Yield Strength (0.2% Offset):** 190 MPa (28 ksi) * **Elongation (% in 50mm):** 12% --- ### **5. Product Applications** 6003 alloy is predominantly used in the form of extruded profiles, tubes, and rods. Its key applications include: * **Architectural and Construction:** * Window and door frames * Curtain walls and mullions * Roofing and siding systems * Handrails and balustrades * **Transportation:** * Automotive trim and body moldings * Bus and railcar body structures and trim * **General Engineering & Consumer Goods:** * Furniture frames * Ladders and scaffolding components * Various structural components requiring a good strength-to-weight ratio --- ### **6. Key Characteristics & Advantages** * **Excellent Extrudability:** One of its primary advantages is that it can be extruded into very complex and thin-walled shapes at high speeds, reducing manufacturing costs. * **Good Corrosion Resistance:** Performs well in atmospheric environments, making it ideal for outdoor architectural applications. * **Superb Anodizing Response:** It accepts anodizing (both clear and color) exceptionally well, resulting in a high-quality, durable, and aesthetic surface finish. * **Medium Strength:** Offers a good balance of strength and formability, suitable for many structural and semi-structural applications. * **Weldability:** It can be readily welded using common techniques like MIG and TIG. In summary, **AA 6003 Aluminum Alloy** is a highly versatile, cost-effective, and widely adopted material, especially valued in the extrusion industry for its optimal blend of manufacturability, mechanical properties, and surface quality.

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 1942 gallon liquid totes Special package is available on request.