6008 Aluminum alloy,Aluminum 6008 alloy,E FORU

### **Product Introduction: 6008 Aluminum Alloy** **6008 Aluminum Alloy** is a heat-treatable aluminum-magnesium-silicon (Al-Mg-Si) alloy specifically developed for automotive applications, particularly for body panels and structural components. This alloy offers an excellent combination of formability, strength after paint-bake hardening, and corrosion resistance, making it particularly suitable for modern automotive manufacturing processes where complex shapes and enhanced safety performance are required. --- ### **1. International Standards** 6008 Aluminum Alloy is recognized under the following international standards: - **AA (Aluminum Association, USA):** AA 6008 - **UNS (Unified Numbering System):** UNS A96008 - **ISO (International Organization for Standardization):** AlMg0.6Si - **EN (European Norm):** EN AW-6008 - **ASTM:** ASTM B221 --- ### **2. Chemical Composition** The chemical composition limits (in weight percentage) are specified as follows: | Element | Content (%) | |:---------|:------------| | **Aluminum (Al)** | Balance | | **Silicon (Si)** | 0.70 - 1.1 | | **Magnesium (Mg)** | 0.40 - 0.8 | | **Manganese (Mn)** | 0.20 - 0.6 | | **Iron (Fe)** | ≤ 0.35 | | **Chromium (Cr)** | ≤ 0.20 | | **Copper (Cu)** | ≤ 0.25 | | **Zinc (Zn)** | ≤ 0.20 | | **Titanium (Ti)** | ≤ 0.10 | | **Others (each)** | ≤ 0.05 | | **Others (total)** | ≤ 0.15 | **Key Takeaway:** The optimized silicon and magnesium ratio ensures excellent age-hardening response during paint-bake cycles. The manganese content enhances strength and formability, while controlled copper content maintains good corrosion resistance. --- ### **3. Physical Properties** The typical physical properties of 6008 aluminum alloy are: | 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 × 10⁻⁶/°C (20-100°C) | 13.0 × 10⁻⁶/°F (68-212°F) | | **Thermal Conductivity** | 175 - 195 W/m·K | 1010 - 1130 BTU·in/(hr·ft²·°F) | | **Electrical Conductivity** | 46-50% IACS | 46-50% IACS | | **Modulus of Elasticity** | 69 GPa | 10,000 ksi | --- ### **4. Mechanical Properties** Mechanical properties vary significantly with temper and paint-bake cycle: **Temper: T4** (Solution heat-treated and naturally aged) - **Tensile Strength:** 190 - 230 MPa (28 - 33 ksi) - **Yield Strength (0.2% Offset):** 100 - 140 MPa (15 - 20 ksi) - **Elongation (% in 50mm):** 18-22% **After Paint-Bake Cycle** (typical 185°C for 20-30 minutes) - **Tensile Strength:** 260 - 300 MPa (38 - 44 ksi) - **Yield Strength (0.2% Offset):** 240 - 280 MPa (35 - 41 ksi) - **Elongation (% in 50mm):** 10-14% --- ### **5. Product Applications** 6008 Aluminum Alloy is primarily used in automotive applications: - **Automotive Body Panels:** - Door outer panels - Hoods and trunk lids - Fenders and quarter panels - Roof panels - **Automotive Structural Components:** - Body-in-white components - Crash management systems - Bumper reinforcements - Seat frames - **Transportation Applications:** - Bus body panels - Rail vehicle components - Truck cab components - **General Applications:** - Requiring complex forming and paint-bake hardening response --- ### **6. Key Characteristics & Advantages** - **Excellent Bake Hardening Response:** Demonstrates significant strength increase during automotive paint-bake cycles (typically 170-185°C), achieving yield strength improvements of 80-100 MPa. - **Superior Formability:** Offers outstanding deep-drawing and stretch-forming capabilities in T4 temper, allowing for manufacturing of complex automotive panels. - **Good Hemming Performance:** Exhibits excellent edge-hemming characteristics without cracking, crucial for automotive door and hood assemblies. - **Enhanced Surface Quality:** Provides superior surface finish for automotive painting and coating processes. - **Good Corrosion Resistance:** Maintains adequate corrosion resistance for automotive applications, particularly when coated. - **Energy Absorption Capability:** Demonstrates excellent crash energy absorption characteristics, important for automotive safety components. - **Weldability:** Can be readily spot-welded and MIG welded using standard automotive welding parameters. --- ### **7. Processing Characteristics** **Heat Treatment Cycle:** - Solution Heat Treatment: 530-550°C (985-1020°F) - Quenching: Rapid cooling to room temperature - Natural Aging: Several days at room temperature (T4 temper) - Paint-Bake Aging: 170-185°C (340-365°F) for 20-30 minutes **Forming Recommendations:** - Best formability achieved in T4 temper - Complex deep-drawing operations should be performed within 24 hours of solution heat treatment - Adequate lubrication required for severe forming operations In summary, **6008 Aluminum Alloy** represents a specialized automotive-grade material engineered specifically for body panel applications. Its unique combination of high formability in T4 temper and exceptional strengthening during paint-bake cycles makes it an ideal choice for modern automotive lightweighting strategies, providing an optimal balance between manufacturing feasibility, structural performance, and weight reduction requirements.

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 1951 gallon liquid totes Special package is available on request.