Alclad 3004-H34 Aluminum alloy,Aluminum 3004-H34 alloy,E FORU

### **Alclad 3004-H34 Aluminum Alloy Product Introduction** **Alclad 3004-H34** is a strain-hardened aluminum composite material consisting of a 3004 alloy core with a metallurgically bonded pure aluminum cladding. The H34 temper indicates the material has been strain hardened to a level between H32 and H36 tempers, providing enhanced strength while maintaining good formability. Combined with the superior corrosion protection of the Alclad layer, this product offers an excellent balance of mechanical properties and environmental durability for demanding applications. --- #### **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:* - High-purity aluminum alloy (AA1050, AA1060, or AA1100 series) - Typically 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 H34 temper provides intermediate strain-hardened characteristics: * **Tensile Ultimate Strength:** 200 - 240 MPa (29 - 35 ksi) * **Tensile Yield Strength (0.2% Offset):** 160 - 200 MPa (23 - 29 ksi) * **Elongation:** 4 - 8% (in 2 inches) * **Shear Strength:** 125 MPa (18 ksi) * **Fatigue Strength:** 85 MPa (12 ksi) * **Brinell Hardness:** 50 - 60 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-H34 is specified for applications requiring higher strength and corrosion resistance: * **Marine Industry:** - Boat hulls and decks - Marine superstructures - Offshore equipment - Harbor structures * **Transportation:** - Heavy-duty truck bodies - Railway freight cars - Container construction - Vehicle structural panels * **Architecture & Construction:** - Structural roofing systems - Building facades - Architectural panels - Industrial flooring * **Industrial Applications:** - Pressure vessels - Chemical processing equipment - Storage tanks - Heat exchanger shells --- #### **6. Key Advantages** * **Enhanced Strength:** Higher mechanical properties than H32 temper * **Superior Corrosion Protection:** Alclad layer provides sacrificial protection * **Good Formability:** Maintains adequate workability for fabrication * **Excellent Weldability:** Compatible with standard welding methods * **Stable Properties:** Consistent performance over time * **Low Maintenance:** Reduced need for protective coatings * **Cost-Effective:** Long service life reduces total cost --- #### **7. Fabrication Characteristics** * **Welding:** Good weldability using GTAW, GMAW, and resistance welding * **Forming:** Suitable for bending, roll forming, and moderate stamping * **Machining:** Fair machinability; requires sharp tools and proper techniques * **Strain Hardening:** Can be further cold worked if required * **Surface Treatment:** Excellent for painting and chemical conversion coatings * **Joining:** Good for mechanical fastening and adhesive bonding --- #### **8. Corrosion Performance** * **Atmospheric Corrosion:** Excellent * **Marine Environment:** Very Good to Excellent * **Stress Corrosion Cracking:** Good Resistance * **Pitting Resistance:** Very Good * **Galvanic Protection:** Sacrificial cladding protects against galvanic corrosion * **Chemical Resistance:** Good resistance to industrial atmospheres --- #### **9. Technical Specifications** * H34 temper provides intermediate strain hardening * Suitable for service temperatures from -70°C to +150°C * Cladding ensures continuous protection * Good stability in various environmental conditions * Maintains strength better than 3003 series alloys --- #### **10. Quality Assurance** * Consistent cladding thickness and bond quality * Uniform mechanical properties * Strict chemical composition control * Full material traceability * Comprehensive certification available **Conclusion** Alclad 3004-H34 offers an excellent balance of enhanced mechanical strength and superior corrosion protection, making it ideal for applications requiring higher load-bearing capability in demanding environments. The intermediate strain hardening of the H34 temper provides substantial strength improvement over lower tempers while maintaining sufficient formability for most fabrication processes. Its combination of reliable performance, durability, and maintenance-free operation makes it a preferred choice for marine, transportation, and industrial applications where both mechanical integrity and long-term corrosion resistance are critical 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 1662 gallon liquid totes Special package is available on request.