4043-H16 Aluminum alloy,Aluminum 4043-H16 alloy,E FORU

### **Product Introduction: Aluminum 4043-H16 Alloy** **Overview** Aluminum 4043-H16 Alloy is a strain-hardened aluminum-silicon alloy in the H16 temper condition, representing a three-quarter hard state achieved through controlled cold working. This temper provides significantly higher strength and stiffness compared to softer tempers, while maintaining the essential welding characteristics of the 4043 alloy. The H16 condition is particularly suitable for automated welding applications requiring improved wire handling and feeding performance. --- ### **1. Chemical Composition (Typical Weight %)** | Element | Content (%) | |---------|-------------| | **Aluminum (Al)** | Balance | | **Silicon (Si)** | 4.5 - 6.0 | | **Iron (Fe)** | ≤ 0.8 | | **Copper (Cu)** | ≤ 0.30 | | **Manganese (Mn)** | ≤ 0.15 | | **Magnesium (Mg)** | ≤ 0.15 | | **Zinc (Zn)** | ≤ 0.20 | | **Titanium (Ti)** | ≤ 0.15 | | **Others (Each)** | ≤ 0.05 | | **Others (Total)** | ≤ 0.15 | --- ### **2. Physical Properties** | Property | Value / Description | |----------|---------------------| | **Density** | 2.69 g/cm³ | | **Melting Range** | 575 - 630 °C | | **Solidus Temperature** | 575 °C | | **Liquidus Temperature** | 630 °C | | **Electrical Conductivity** | 38-43% IACS | | **Thermal Conductivity** | 150-170 W/m·K | | **Coefficient of Thermal Expansion** | 22.5 × 10⁻⁶/°C | | **Modulus of Elasticity** | 71 GPa | --- ### **3. Mechanical Properties (H16 Temper Condition)** | Property | Value Range | |----------|-------------| | **Tensile Strength** | 170-210 MPa | | **Yield Strength (0.2% Offset)** | 150-190 MPa | | **Elongation (in 50mm)** | 4-8% | | **Hardness (Brinell)** | 50-65 HB | | **Shear Strength** | 110-140 MPa | | **Fatigue Strength** | 80-100 MPa | --- ### **4. International Standards** | Standard Body | Designation | |---------------|-------------| | **Aluminum Association (AA)** | AA 4043-H16 | | **European Standard (EN)** | EN AW-4043-H16 | | **ISO** | AlSi5 H16 (ISO 18273) | | **UNS** | A94043 | | **AWS** | A5.10 ER4043 | | **ASTM** | B211 | --- ### **5. Product Applications** **Automated Welding Applications:** - Robotic MIG welding systems - High-speed automated welding - Automotive production lines - Mass manufacturing processes - Pipe mill welding operations **Industrial Welding:** - Structural steel fabrication - Shipbuilding and marine construction - Pressure vessel manufacturing - Heavy equipment fabrication - Structural beam welding **Specialized Applications:** - Long-distance wire feeding systems - High-production welding environments - Outdoor welding in challenging conditions - Critical structural applications - High-quality weld requirement applications --- ### **6. Key Characteristics & Advantages** - **Superior Wire Stiffness**: Excellent feeding characteristics in automated systems - **High Strength**: Enhanced mechanical properties for improved handling - **Excellent Feedability**: Reduced bird-nesting and feeding problems - **Good Arc Performance**: Maintains stable arc characteristics - **Reduced Tangling**: Improved wire straightness and handling - **Consistent Quality**: Uniform mechanical properties throughout - **Weld Integrity**: Produces high-quality welds with good mechanical properties --- ### **7. H16 Temper Specific Features** **Mechanical Performance:** - Three-quarter hard condition with high strength - Improved resistance to bending and deformation - Good spring characteristics - Consistent mechanical properties - Enhanced wire straightness **Welding Performance Advantages:** - Excellent performance in push-pull feeding systems - Reduced feeding force requirements - Stable welding parameters - Good bead appearance and wetting characteristics - Minimal spatter generation --- ### **8. Processing and Handling Guidelines** **Welding Parameters:** - Optimized for MIG welding processes - Suitable for TIG welding in rod form - Recommended shielding gas: Pure Argon or Argon/Helium mixtures - May require parameter optimization for best results **Equipment Requirements:** - Compatible with standard welding equipment - Suitable for long feeding distances - Works well with both push and push-pull systems - Requires proper drive roll selection **Storage and Handling:** - Store in original packaging to maintain condition - Keep in dry, temperature-controlled environment - Protect from mechanical damage during handling - Use within recommended shelf life **Disclaimer:** The information provided is for reference purposes only. The H16 temper offers superior handling characteristics for automated welding applications while maintaining good weld quality. Welding performance may vary depending on specific equipment, parameters, and application requirements. Always conduct appropriate testing for critical applications and follow manufacturer recommendations for welding procedures and equipment setup.

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 1751 gallon liquid totes Special package is available on request.