Alclad 3004-H112 Aluminum alloy,Aluminum 3004-H112 alloy,E FORU

### **Alclad 3004-H112 Aluminum Alloy Product Introduction** **Alclad 3004-H112** is a composite aluminum product featuring a 3004 alloy core in the H112 temper with a metallurgically bonded pure aluminum or aluminum alloy cladding. This combination provides the enhanced strength of the 3004-H112 base material with superior corrosion resistance through the sacrificial Alclad layer, making it ideal for applications requiring both mechanical performance and long-term durability in corrosive environments. --- #### **1. Chemical Composition** *Core Alloy (3004):* | Element | Content (%) | | :--- | :--- | | **Manganese (Mn)** | 1.0 - 1.5 | | **Magnesium (Mg)** | 0.8 - 1.3 | | **Iron (Fe)** | 0.7 max | | **Silicon (Si)** | 0.30 max | | **Copper (Cu)** | 0.25 max | | **Zinc (Zn)** | 0.25 max | | **Other Elements** | each 0.05 max, total 0.15 max | | **Aluminum (Al)** | Balance | *Cladding Layer:* - Typically AA1050, AA1060, or AA1100 alloy - Comprises approximately 2.5-5% of total thickness per side - Provides sacrificial corrosion protection --- #### **2. Physical Properties** | Property | Value / Description | | :--- | :--- | | **Density** | 2.72 g/cm³ (0.098 lb/in³) | | **Melting Range** | 630 - 650 °C (1166 - 1202 °F) | | **Modulus of Elasticity** | 70 GPa (10,150 ksi) | | **Thermal Conductivity** | 125 W/m·K (87 BTU·in/hr·ft²·°F) | | **Electrical Conductivity** | 35% IACS | | **Coefficient of Thermal Expansion** | 23.5 × 10⁻⁶/°C (20-100°C) | | **Cladding Thickness** | 2.5-5% per side of total thickness | --- #### **3. Mechanical Properties** The H112 temper provides basic mechanical properties with slight strain hardening: * **Tensile Ultimate Strength:** 160 - 200 MPa (23 - 29 ksi) * **Tensile Yield Strength (0.2% Offset):** 70 - 110 MPa (10 - 16 ksi) * **Elongation:** 8 - 15% (in 2 inches) * **Shear Strength:** 105 MPa (15 ksi) * **Fatigue Strength:** 70 MPa (10 ksi) * **Brinell Hardness:** 40 - 50 HB * **Bending Characteristics:** Good bendability with minimum bend radius of 1-2t --- #### **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 4084** - Aluminum Alloy 3004, Alclad Sheet and Plate * **EN:** * **EN 573-3** - Chemical composition and form of products * **EN 485-2** - Mechanical properties * **ISO:** * **ISO 6361-2** - Wrought Aluminum and Aluminum Alloy Sheets, Strips and Plates --- #### **5. Product Applications** Alclad 3004-H112 is specified for applications requiring corrosion resistance and moderate strength: * **Marine Industry:** - Boat hulls and superstructures - Marine hardware and components - Offshore platform components * **Transportation:** - Truck and trailer bodies - Railway freight cars - Container flooring and panels * **Architecture & Construction:** - Roofing and siding systems - Architectural panels - Structural components in corrosive environments * **Industrial Applications:** - Chemical processing equipment - Storage tanks and pressure vessels - Heat exchanger components --- #### **6. Key Advantages** * **Superior Corrosion Resistance:** Alclad layer provides sacrificial protection * **Good Mechanical Strength:** Higher strength than 3003 series alloys * **Excellent Formability:** Suitable for bending and moderate forming operations * **Good Weldability:** Compatible with standard aluminum welding methods * **Long Service Life:** Extended durability in corrosive environments * **Low Maintenance:** Reduced need for protective coatings and maintenance * **Cost-Effective Protection:** Economical corrosion protection solution --- #### **7. Fabrication Characteristics** * **Welding:** Good weldability using GTAW and GMAW processes * **Forming:** Suitable for bending, roll forming, and moderate drawing * **Machining:** Fair machinability; requires sharp tools and proper techniques * **Strain Hardening:** Can be further cold worked to achieve higher strength tempers * **Surface Treatment:** Excellent for painting and chemical conversion coatings --- #### **8. Corrosion Performance** * **Atmospheric Corrosion:** Excellent * **Marine Environment:** Very Good to Excellent * **Stress Corrosion Cracking:** Good Resistance * **Pitting Resistance:** Very Good * **Galvanic Corrosion:** Protected by sacrificial cladding --- #### **9. Technical Specifications** * H112 temper indicates slight strain hardening during hot working * Suitable for service temperatures from -70°C to +150°C * Cladding provides continuous protection even when scratched * Maintains strength at elevated temperatures better than 3003 alloy * Good resistance to industrial and marine atmospheres --- #### **10. Quality Assurance** * Consistent cladding thickness and bond quality * Uniform mechanical properties * Strict adherence to international standards * Full material traceability * Comprehensive certification available **Conclusion** Alclad 3004-H112 offers an optimal balance of moderate strength, good formability, and superior corrosion protection, making it an excellent choice for applications in marine, transportation, and industrial sectors. The combination of the stronger 3004 alloy core with the protective Alclad cladding provides a cost-effective solution for components requiring both mechanical performance and long-term durability in corrosive environments. Its versatility and reliable performance make it a preferred material for manufacturers seeking to extend product life while minimizing maintenance requirements in challenging service conditions.

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 1660 gallon liquid totes Special package is available on request.