2007B Aluminum alloy,Aluminum 2007B alloy,E FORU

### **2007B Aluminum Alloy Product Introduction** **1. Overview** 2007B Aluminum Alloy is a European-designated free-machining aluminum-copper alloy from the 2xxx series, representing an enhanced version with improved consistency and performance characteristics. The "B" suffix indicates further refined quality control and optimized composition for superior machinability and mechanical properties. As a heat-treatable alloy, it provides excellent machining characteristics combined with good strength, making it ideal for high-volume precision components. **2. Chemical Composition (Typical, % by Weight)** The composition adheres to strict European standards with optimized alloying elements. | Element | Content (%) | |---------|-------------| | **Aluminum (Al)** | Balance | | **Copper (Cu)** | 3.3-4.6 | | **Magnesium (Mg)** | 0.40-1.0 | | **Silicon (Si)** | 0.50-1.0 | | **Iron (Fe)** | ≤0.20 | | **Zinc (Zn)** | ≤0.15 | | **Manganese (Mn)** | 0.40-1.0 | | **Lead (Pb)** | 1.0-1.8 | | **Bismuth (Bi)** | 0.5-1.0 | | **Other Elements (Each)** | ≤0.05 | | **Other Elements (Total)** | ≤0.15 | *Note: The optimized lead and bismuth content provides enhanced machinability with improved chip formation and surface finish.* **3. Physical Properties** | Property | Value | |----------|-------| | **Density** | 2.86 g/cm³ | | **Melting Point** | 545-635°C | | **Electrical Conductivity** | 37% IACS | | **Thermal Conductivity** | 138 W/(m·K) | | **Coefficient of Thermal Expansion** | 23.1 × 10⁻⁶/K (20-100°C) | | **Modulus of Elasticity** | 72 GPa | **4. Mechanical Properties (Typical)** Properties demonstrate excellent machinability with maintained mechanical strength. | Temper | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | |--------|------------------------|----------------------|----------------| | **O (Annealed)** | 220-260 | 110-140 | 15-20 | | **T4 (Solution Heat Treated)** | 360-400 | 210-250 | 15-20 | | **T6 (Peak Aged)** | 420-460 | 340-380 | 9-13 | *Key Characteristics:* * **Superior Machinability**: Excellent chip formation and surface finish * **Good Mechanical Strength**: Maintains strength after machining operations * **Enhanced Consistency**: Improved batch-to-batch uniformity * **Good Wear Resistance**: Suitable for bearing surfaces and moving parts **5. Product Applications** 2007B aluminum is extensively used in high-precision machining applications. * **Automotive Components**: Engine parts, transmission components, fittings * **Aerospace Industry**: Aircraft fittings, hydraulic system parts * **Precision Engineering**: Gears, shafts, and precision mechanical components * **Hydraulic Systems**: Valve bodies, pump components, cylinder parts * **Electronics**: Heat sinks, connector bodies, and electronic housings * **Industrial Equipment**: Machine tool components and fixtures * **Consumer Goods**: High-quality mechanical parts and assemblies **6. International Standards** 2007B aluminum is recognized under European and international standardization systems. | Standard System | Designation | |-----------------|-------------| | **EN (Europe)** | EN AW-2007B [AlCu4PbMg] | | **ISO** | AlCu4PbMg | | **ASTM (USA)** | Similar to 2017B | | **UNS (USA)** | UNS A92007 | | **JIS (Japan)** | A2007 | | **GB (China)** | 2A07 | --- **Summary** **2007B Aluminum Alloy** represents an **enhanced free-machining aluminum alloy** with **optimized composition for superior machining performance and consistency**. The "B" designation ensures refined quality control and improved material uniformity, making it particularly suitable for high-volume precision machining operations. With its carefully balanced lead and bismuth content, this alloy provides exceptional chip-breaking characteristics, excellent surface finish, and maintained mechanical properties after machining. The combination of superior machinability, good strength characteristics, and enhanced batch consistency makes 2007B an ideal choice for automotive components, aerospace fittings, precision mechanical parts, and applications requiring extensive machining operations with tight tolerances. Its reliable performance and consistent quality establish it as a premium material for demanding machining applications across various industries.

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 1499 gallon liquid totes Special package is available on request.