3003-H19 Aluminum alloy,Aluminum 3003-H19 alloy,E FORU

### **Aluminum 3003-H19 Alloy Product Introduction** **Aluminum 3003-H19** is an extra-hard temper variant of the aluminum-manganese 3003 alloy, representing the ultimate level of strain hardening achievable through cold working processes. The H19 designation indicates a temper condition that exceeds the conventional full-hard H18 state, providing the highest possible strength and hardness in the 3003 alloy series while maintaining essential aluminum characteristics. --- #### **1. Chemical Composition** | 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, total 0.15 max | | **Aluminum (Al)** | Balance | *Alloy Characteristics:* - **Manganese** provides solid solution strengthening as the primary alloying element - Precise chemical control enables maximum strain hardening capability - Optimized for ultra-high strength applications while maintaining base corrosion resistance --- #### **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** | 150 W/m·K (104 BTU·in/hr·ft²·°F) | | **Electrical Conductivity** | 40% IACS | | **Coefficient of Thermal Expansion** | 23.2 × 10⁻⁶/°C (20-100°C) | | **Specific Heat Capacity** | 900 J/kg·K | --- #### **3. Mechanical Properties** The H19 temper provides extra-hard characteristics with ultimate strength: * **Tensile Ultimate Strength:** 200 - 250 MPa (29 - 36 ksi) * **Tensile Yield Strength (0.2% Offset):** 185 - 235 MPa (27 - 34 ksi) * **Elongation:** 1 - 3% (in 2 inches) * **Shear Strength:** 150 MPa (22 ksi) * **Fatigue Strength:** 95 MPa (14 ksi) * **Brinell Hardness:** 55 - 65 HB * **Bending Characteristics:** Very limited formability with minimum bend radius of 4-5t --- #### **4. International Standards** * **ASTM:** * **ASTM B209** - Aluminum and Aluminum-Alloy Sheet and Plate * **ASTM B210** - Aluminum and Aluminum-Alloy Drawn Seamless Tubes * **ISO:** * **ISO 6361-2** - Wrought Aluminum and Aluminum Alloy Sheets, Strips and Plates * **EN:** * **EN 573-3** - Chemical composition and form of products * **EN 485-2** - Mechanical properties * **JIS:** **JIS H 4000** - Aluminum and Aluminum Alloy Sheets and Plates --- #### **5. Product Applications** 3003-H19 is specified for specialized applications requiring ultimate strength: * **Aerospace:** Non-structural components, stiffeners, and high-strength brackets * **Transportation:** Ultra-heavy-duty vehicle components, structural reinforcements * **Industrial:** Specialized machinery parts, high-wear components, tooling applications * **Electronics:** High-strength heat sink applications, rigid electronic enclosures * **Construction:** Special architectural elements requiring maximum stiffness * **Consumer Goods:** High-strength appliance components, industrial hardware --- #### **6. Key Advantages** * **Ultimate Strength:** Highest mechanical properties achievable in 3003 series * **Superior Hardness:** Exceptional surface durability and wear resistance * **Maximum Stiffness:** Excellent dimensional stability under heavy loads * **Maintained Corrosion Resistance:** Good performance in various environments * **Good Thermal Properties:** Suitable for heat transfer applications * **Weight Efficiency:** Excellent strength-to-weight ratio * **Cost Alternative:** Economical substitute for more expensive high-strength alloys --- #### **7. Fabrication Characteristics** * **Welding:** Limited weldability; requires specialized techniques and may need annealing * **Forming:** Very limited formability; suitable only for minimal bending operations * **Machining:** Challenging machinability; requires specialized tools and techniques * **Strain Hardening:** Represents maximum practical cold working limit * **Annealing:** 345°C (650°F) for 2-3 hours for complete stress relief and softening * **Springback:** Substantial springback requires sophisticated tooling design --- #### **8. Technical Specifications** * H19 temper indicates strain hardening beyond conventional full-hard condition * Suitable for service temperatures from -70°C to +125°C * Good resistance to atmospheric corrosion * Limited formability requires careful manufacturing planning * Special handling required to prevent cracking during fabrication --- #### **9. Corrosion Performance** * **Atmospheric Corrosion:** Good to Excellent * **Marine Environment:** Fair to Good * **Stress Corrosion Cracking:** Good Resistance * **Pitting Resistance:** Fair * **General Corrosion:** Good --- #### **10. Special Considerations** * **Material Handling:** Requires careful handling to prevent edge cracking * **Fabrication Planning:** Manufacturing processes must account for limited ductility * **Quality Control:** Enhanced inspection recommended for critical applications * **Application Specific:** Recommended for applications where minimal forming is required --- #### **11. Comparison with Other Tempers** * Approximately 8-12% stronger than H18 temper * Significant reduction in elongation compared to H18 * Maintains same corrosion resistance as other 3003 tempers * Higher residual stresses may require stress relief for some applications **Conclusion** Aluminum 3003-H19 represents the pinnacle of strain hardening achievement in the 3003 alloy system, delivering the highest possible strength and hardness characteristics. While its applications are specialized due to limited formability, it provides an economical solution for situations demanding maximum mechanical properties from a non-heat-treatable aluminum alloy. The material is particularly valuable in applications where ultra-high strength and stiffness are required, and where subsequent forming operations are minimal. 3003-H19 serves as a cost-effective alternative to more expensive high-strength aluminum alloys while maintaining the favorable corrosion resistance and manufacturing characteristics of the 3000 series aluminum alloys.

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 1657 gallon liquid totes Special package is available on request.