3107 Aluminum alloy,Aluminum 3107 alloy,E FORU

### **Product Introduction: Aluminum 3107 Alloy** **Overview** Aluminum 3107 Alloy is a non-heat-treatable aluminum-manganese alloy primarily known for its exceptional corrosion resistance, high formability, and excellent finishing characteristics. It is a commercially pure aluminum with a small addition of manganese, which provides a modest increase in strength while retaining the superior workability and ductility of pure aluminum. This alloy is most commonly supplied in the H1x (strain-hardened) tempers, which offer a good balance of strength and formability for its intended applications. It is a premier choice for automotive parts, especially heat exchangers, and various architectural applications. --- ### **1. Chemical Composition (Typical Weight %)** The composition of 3107 alloy is simple, emphasizing purity and corrosion resistance. | Element | Content (%) | | :--- | :--- | | **Aluminum (Al)** | ≥ 98.8 | | **Manganese (Mn)** | 0.40 - 0.9 | | **Iron (Fe)** | ≤ 0.7 | | **Copper (Cu)** | ≤ 0.10 | | **Zinc (Zn)** | ≤ 0.20 | | **Silicon (Si)** | ≤ 0.6 | | **Magnesium (Mg)** | ≤ 0.30 | | **Others (Each)** | ≤ 0.05 | | **Others (Total)** | ≤ 0.15 | *The low copper and zinc content is key to its outstanding corrosion resistance.* --- ### **2. Physical Properties** 3107 Aluminum exhibits physical properties typical of non-heat-treatable, commercially pure aluminum alloys. | Property | Value / Description | | :--- | :--- | | **Density** | 2.73 g/cm³ (0.0986 lb/in³) | | **Melting Range** | ~ 645 - 655 °C (~ 1190 - 1210 °F) | | **Electrical Conductivity** | ~ 45-50% IACS (International Annealed Copper Standard) | | **Thermal Conductivity** | ~ 190 - 210 W/m·K | | **Coefficient of Thermal Expansion** | ~ 23.4 x 10⁻⁶/°C (at 20-100°C) | | **Modulus of Elasticity** | ~ 70 GPa (10,000 ksi) | --- ### **3. Mechanical Properties (Typical for H14 Temper)** 3107 is most commonly used in strain-hardened tempers like H14, which provides a useful strength for fabrication. | Property | Value (H14 Temper) | | :--- | :--- | | **Tensile Strength** | 120 - 150 MPa (17 - 22 ksi) | | **Yield Strength (0.2% Offset)** | ≥ 110 MPa (≥ 16 ksi) | | **Elongation (in 50mm)** | 5% - 12% | *Note: In the fully annealed (O) condition, its strength would be lower, and ductility would be significantly higher.* --- ### **4. International Standards** 3107 aluminum alloy is standardized across major international organizations. | Standard Body | Alloy Designation | | :--- | :--- | | **Aluminum Association (AA)** | AA 3107 | | **UNS Number** | UNS A93107 | | **European Standard (EN)** | **EN AW-3107** (Chemical Symbol: AlMn0.7Mg) | | **ISO** | AlMn0.7Mg (ISO 209) | | **Japan (JIS)** | A9307 P | | **China (GB/T)** | 3107 (GB/T 3190) | --- ### **5. Product Applications** The combination of corrosion resistance, formability, and brazeability makes 3107 alloy ideal for specific demanding applications. * **Automotive Industry:** * **Heat Exchangers:** The primary application. Used for manufacturing radiator fins, charge air cooler fins, and other components where brazing in a furnace is required. Its stability and resistance to sagging at high brazing temperatures are critical. * **Tank and Header Sheets** * **Building and Architecture:** * Roofing and siding * Wall cladding and panels * Gutters and downpipes * **General Sheet Metal Work:** * Parts requiring excellent corrosion resistance and a good surface for painting or anodizing. --- ### **6. Key Characteristics & Advantages** * **Superior Corrosion Resistance:** Its high aluminum content and low level of impurities (like copper) give it excellent resistance to atmospheric corrosion, comparable to the 1xxx series alloys. * **Excellent Formability:** It can be easily bent, stamped, and formed into complex shapes, especially in softer tempers. * **High Brazeability:** This is a critical property for heat exchanger applications. 3107 maintains its integrity and resists sagging during the high-temperature brazing process. * **Good Thermal and Electrical Conductivity:** Suitable for heat transfer and electrical applications. * **Excellent Finishing Characteristics:** It provides a high-quality, uniform surface that is ideal for anodizing, painting, and other cosmetic finishes. **Disclaimer:** The information provided is for reference purposes. Mechanical properties are highly dependent on temper and product form. For specification and design purposes, always consult certified material data sheets from the manufacturer.

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 1715 gallon liquid totes Special package is available on request.