2038 Aluminum alloy,Aluminum 2038 alloy,E FORU

### **Product Datasheet: 2038 Aluminum Alloy** **1. Overview** 2038 Aluminum Alloy is a wrought aluminum-copper-magnesium alloy within the 2xxx series, designed to offer an excellent balance of strength, formability, and machinability. It is particularly known for its good response to heat treatment, which allows it to achieve enhanced mechanical properties. The alloy typically finds application in areas requiring moderate to high strength combined with good manufacturing characteristics. It is available in various tempers, with the T4 and T6 conditions being common for many applications. **2. International Standards** 2038 Aluminum alloy is recognized under several major international standards systems: * **UNS:** UNS A92038 * **ASTM:** ASTM B211 (Standard Specification for Aluminum and Aluminum-Alloy Bar, Rod, and Wire), ASTM B221 (Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes) * **SAE:** SAE J454 (Recommended Practice for Chemical Compositions of Wrought Aluminum Alloys) * **AA (Aluminum Association):** AA 2038 (The defining standard for composition and temper) *Note: Specific forms (sheet, plate, forgings) may be governed by other relevant ASTM, AMS, or EN standards.* **3. Chemical Composition (Weight %)** The composition conforms to the limits set by the Aluminum Association (AA). | Element | Content (%) | | :--- | :--- | | **Aluminum (Al)** | Balance | | **Copper (Cu)** | 1.8 - 2.5 | | **Magnesium (Mg)** | 0.20 - 0.6 | | **Manganese (Mn)** | 0.20 - 0.6 | | **Iron (Fe)** | ≤ 0.50 | | **Silicon (Si)** | ≤ 0.35 | | **Zinc (Zn)** | ≤ 0.25 | | **Chromium (Cr)** | ≤ 0.10 | | **Titanium (Ti)** | ≤ 0.15 | | **Others (Each)** | ≤ 0.05 | | **Others (Total)** | ≤ 0.15 | **4. Physical Properties** | Property | Value / Description | | :--- | :--- | | **Density** | 2.77 - 2.79 g/cm³ (0.100 - 0.101 lb/in³) | | **Melting Range** | ~ 550 - 645 °C (1020 - 1190 °F) | | **Electrical Conductivity** | Approximately 38-42% IACS (International Annealed Copper Standard) | | **Thermal Conductivity** | ~ 130 - 150 W/m·K | | **Coefficient of Thermal Expansion** | ~ 23.2 x 10⁻⁶/°C (20-100°C) | **5. Mechanical Properties (Typical Values)** *Mechanical properties are dependent on the temper. The following are typical ranges for common tempers.* | Property | T4 Temper (Solution Heat Treated & Naturally Aged) | T6 Temper (Solution Heat Treated & Artificially Aged) | | :--- | :--- | :--- | | **Tensile Strength (Ultimate)** | 350 - 400 MPa (51 - 58 ksi) | 420 - 470 MPa (61 - 68 ksi) | | **Tensile Yield Strength (0.2% Offset)** | 200 - 240 MPa (29 - 35 ksi) | 350 - 400 MPa (51 - 58 ksi) | | **Elongation at Break (in 50mm)** | 18 - 22% | 8 - 12% | | **Modulus of Elasticity** | 71.0 GPa (10,300 ksi) | | **Shear Strength** | ~ 220 MPa (32 ksi) | ~ 260 MPa (38 ksi) | | **Brinell Hardness (HB)** | ~ 95 | ~ 120 | **6. Key Characteristics & Advantages** * **Good Strength-to-Weight Ratio:** Offers favorable mechanical properties while maintaining low density, beneficial for weight-sensitive applications. * **Excellent Machinability:** Exhibits very good machinability in the T4 and T6 tempers, allowing for high-speed operations and good surface finishes. * **Good Formability:** In the T4 temper, the alloy possesses sufficient ductility for forming operations. * **Heat Treatable:** Responds well to solution heat treatment and aging (both natural and artificial) to achieve a range of strength levels. * **Typical Surface Finish:** Can be machined, anodized, painted, or coated for enhanced corrosion resistance and aesthetics. **7. Product Applications** 2038 Aluminum Alloy is commonly used in applications that require a reliable combination of strength, machinability, and moderate weight. * **Aerospace:** Non-critical structural components, fittings, and brackets. * **Automotive:** Powertrain components, suspension parts, pistons, and other forged or machined parts. * **General Manufacturing:** High-strength machined parts, fasteners, hydraulic valve bodies, and robotics components. * **Sporting Goods:** Components for bicycles and other equipment where strength and weight are factors. **8. Availability** 2038 is typically supplied as: * Bar, Rod, and Wire * Extruded Profiles * Forgings --- **Disclaimer:** The information provided herein is for reference purposes only. The properties listed are typical and should not be used as design specifications. Actual properties can vary depending on manufacturing processes, lot chemistry, temper, and section size. We recommend consulting with our technical team for specific application requirements.

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 1567 gallon liquid totes Special package is available on request.