Alclad 3003-H16 Aluminum alloy,Aluminum 3003-H16 alloy,E FORU

### **Alclad 3003-H16 Aluminum Alloy Product Introduction** **Alclad 3003-H16** is an advanced aluminum composite material featuring a **3003 alloy core** in the **H16 temper** (three-quarter hard) with a metallurgically bonded pure aluminum cladding. This combination delivers higher mechanical strength than lower H-series tempers while maintaining the exceptional corrosion resistance of the Alclad coating. The material is specifically engineered for applications requiring enhanced strength, good formability, and superior corrosion protection in demanding environments. --- #### **1. Chemical Composition** * **Core Alloy (3003):** | Element | Content (%) | | :--- | :--- | | **Manganese (Mn)** | 1.0 - 1.5 | | **Copper (Cu)** | 0.05 - 0.20 | | **Iron (Fe)** | 0.7 max | | **Silicon (Si)** | 0.6 max | | **Zinc (Zn)** | 0.10 max | | **Other Elements** | each 0.05 max | | **Aluminum (Al)** | Balance | * **Cladding Layer:** High-purity aluminum alloy (AA1050, AA1060, or AA1100 series) providing sacrificial corrosion protection. --- #### **2. Physical Properties** | Property | Value / Description | | :--- | :--- | | **Density** | 2.73 g/cm³ (0.098 lb/in³) | | **Melting Range** | 643 - 654 °C (1190 - 1210 °F) | | **Modulus of Elasticity** | 69 GPa (10,000 ksi) | | **Thermal Conductivity** | 155 W/m·K (107 BTU·in/hr·ft²·°F) | | **Electrical Conductivity** | 42% IACS | | **Coefficient of Thermal Expansion** | 23.2 × 10⁻⁶/°C (20-100°C) | | **Cladding Thickness** | Typically 2.5-5% per side of total thickness | --- #### **3. Mechanical Properties** The H16 temper provides three-quarter hard strength characteristics: * **Tensile Ultimate Strength:** 170 - 215 MPa (25 - 31 ksi) * **Tensile Yield Strength (0.2% Offset):** 160 - 200 MPa (23 - 29 ksi) * **Elongation:** 1 - 5% (in 2 inches) * **Shear Strength:** 125 MPa (18 ksi) * **Fatigue Strength:** 85 MPa (12 ksi) * **Brinell Hardness:** 45 - 55 HB * **Bending Characteristics:** Moderate bendability with minimum bend radius of 2-3t (t = thickness) --- #### **4. International Standards** * **ASTM:** * **ASTM B209** - Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate * **ASTM B928** - Standard Specification for High Magnesium Aluminum-Alloy Sheet and Plate * **AMS:** **AMS 4003** - Aluminum Alloy 3003, Alclad Sheet and Plate * **ISO:** * **ISO 6361-2** - Wrought Aluminum and Aluminum Alloy Sheets, Strips and Plates * **ISO 209** - Aluminum and Aluminum Alloys - Chemical Composition * **EN:** * **EN 573-3** - Chemical composition and form of products * **EN 485-2** - Mechanical properties --- #### **5. Product Applications** Alclad 3003-H16 is specified for applications requiring higher strength with maintained corrosion resistance: * **Aerospace:** Aircraft structural components, wing panels, and high-stress interior structures * **Marine:** High-performance boat hulls, structural marine components, and offshore equipment * **Transportation:** Heavy-duty truck trailers, railway car bodies, and container construction * **Architecture:** Structural panels, roofing systems, and high-strength architectural elements * **Industrial:** Pressure vessels, chemical processing equipment, and storage tanks * **Heat Exchangers:** High-pressure heat transfer components and fin stock --- #### **6. Key Advantages** * **Enhanced Mechanical Strength:** H16 temper provides approximately 25% higher strength than H14 temper * **Superior Corrosion Resistance:** Alclad layer offers sacrificial protection against corrosive environments * **Optimal Strength-Weight Ratio:** High strength maintained with lightweight aluminum characteristics * **Excellent Surface Durability:** Cladding provides long-term protection against pitting and surface degradation * **Good Weldability:** Compatible with standard aluminum welding techniques (GTAW, GMAW) * **Maintained Formability:** Despite higher strength, retains capability for moderate forming operations * **Low Life-Cycle Cost:** Reduced maintenance and extended service life in corrosive environments --- #### **7. Fabrication Characteristics** * **Welding:** Good weldability using standard aluminum welding procedures * **Forming:** Moderate formability; suitable for bending and light forming operations * **Machining:** Fair machinability; requires sharp tools and appropriate cutting parameters * **Annealing:** 345°C (650°F) for 2-3 hours for complete softening to O temper * **Surface Treatment:** Excellent suitability for chemical conversion coatings and painting --- #### **8. Technical Notes** * The H16 temper represents an optimal balance for applications requiring higher strength than H14 but where the full hardness of H18 would compromise formability * The Alclad layer typically reduces the overall mechanical properties by 3-7% compared to unclad 3003-H16 * Material exhibits good stress corrosion resistance and weathering characteristics * Suitable for service temperatures from -70°C to +150°C (-94°F to +302°F) **Conclusion** Alclad 3003-H16 represents a high-performance material solution that combines the enhanced mechanical properties of three-quarter hard 3003 alloy with the proven corrosion protection of Alclad technology. This material is particularly valuable for applications in aerospace, marine, and industrial sectors where both structural performance and long-term durability in corrosive environments are critical requirements. The H16 temper provides an excellent compromise between strength and formability, making it suitable for components that require higher load-bearing capacity while maintaining some fabrication flexibility.

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 1649 gallon liquid totes Special package is available on request.