4045 Aluminum alloy,Aluminum 4045 alloy,E FORU

### **Product Introduction: Aluminum 4045 Alloy** **Overview** Aluminum 4045 Alloy is a versatile aluminum-silicon alloy widely used as both a brazing filler metal and a casting alloy. With its balanced silicon content, it offers excellent fluidity, good corrosion resistance, and reliable performance in various joining and casting applications. The alloy is particularly valued in automotive, HVAC, and general manufacturing industries for its consistent performance and ease of processing. --- ### **1. Chemical Composition (Typical Weight %)** | Element | Content (%) | |---------|-------------| | **Aluminum (Al)** | Balance | | **Silicon (Si)** | 9.0 - 11.0 | | **Iron (Fe)** | ≤ 0.8 | | **Copper (Cu)** | ≤ 0.30 | | **Manganese (Mn)** | ≤ 0.05 | | **Magnesium (Mg)** | ≤ 0.05 | | **Zinc (Zn)** | ≤ 0.10 | | **Titanium (Ti)** | ≤ 0.20 | | **Others (Each)** | ≤ 0.05 | | **Others (Total)** | ≤ 0.15 | --- ### **2. Physical Properties** | Property | Value / Description | |----------|---------------------| | **Density** | 2.66 g/cm³ | | **Melting Range** | 575 - 590 °C | | **Solidus Temperature** | 575 °C | | **Liquidus Temperature** | 590 °C | | **Electrical Conductivity** | 35-40% IACS | | **Thermal Conductivity** | 140-160 W/m·K | | **Coefficient of Thermal Expansion** | 21.0 × 10⁻⁶/°C | | **Modulus of Elasticity** | 73 GPa | --- ### **3. Mechanical Properties (As-cast Condition)** | Property | Value Range | |----------|-------------| | **Tensile Strength** | 150-190 MPa | | **Yield Strength (0.2% Offset)** | 70-110 MPa | | **Elongation (in 50mm)** | 8-15% | | **Hardness (Brinell)** | 50-65 HB | | **Shear Strength** | 130-170 MPa | --- ### **4. International Standards** | Standard Body | Designation | |---------------|-------------| | **Aluminum Association (AA)** | AA 4045 | | **European Standard (EN)** | EN AW-4045 | | **ISO** | AlSi10 (ISO 18273) | | **UNS** | A94045 | | **AWS** | A5.8 BAlSi-4 | | **ASTM** | B26, B108 | --- ### **5. Product Applications** **Brazing Applications:** - Heat exchanger components - Automotive radiators - Air conditioning systems - Evaporators and condensers - Electrical equipment joining **Casting Applications:** - Die cast components - Sand cast parts - Permanent mold castings - Investment castings - General engineering castings **Industry Applications:** - Automotive industry (pistons, cylinder heads) - HVAC and refrigeration systems - Electrical industry components - Pump and valve bodies - Architectural castings --- ### **6. Key Characteristics & Advantages** - **Excellent Fluidity**: Superior flow characteristics for casting and brazing - **Good Corrosion Resistance**: Performs well in various environmental conditions - **Low Melting Point**: Ideal for brazing and casting applications - **Minimal Shrinkage**: Reduced porosity in cast components - **Good Machinability**: Can be easily machined after casting - **Weldability**: Suitable for various welding processes - **Thermal Stability**: Maintains properties at elevated temperatures --- ### **7. Special Features** **Brazing Performance:** - Controlled melting characteristics - Good wetting and spreading action - Compatible with various base metals - Works with standard brazing fluxes - Suitable for automated brazing processes **Casting Characteristics:** - Excellent mold filling capability - Reduced hot tearing tendency - Good surface finish - Minimal gas porosity - Predictable solidification pattern --- ### **8. Processing Guidelines** **Brazing Parameters:** - Optimal brazing temperature: 580-600°C - Suitable for torch, furnace, and induction brazing - Compatible with flux and fluxless processes - Recommended for aluminum-to-aluminum joining **Casting Parameters:** - Pouring temperature: 680-720°C - Suitable for various casting methods - Good for thin-wall castings - Responds well to modification treatments **Disclaimer:** The information provided is for reference purposes only. Performance characteristics may vary depending on specific processing conditions, product form, and application requirements. For critical applications, consult technical data sheets from material suppliers and conduct appropriate testing. The alloy's properties make it suitable for both brazing filler metal applications and general casting purposes, but specific parameters should be optimized for each application type.

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 1755 gallon liquid totes Special package is available on request.