2030-T351 Aluminum alloy,Aluminum 2030-T351 alloy,E FORU

# **Aluminum 2030-T351 Alloy Product Introduction** ## **Overview** 2030-T351 is a high-strength aluminum-copper alloy in the solution heat-treated, stress-relieved by stretching, and naturally aged condition. This specific temper is particularly designed for plate and thick sheet applications where dimensional stability during machining is critical. The T351 temper provides improved stress relief compared to standard T3 temper, making it ideal for precision components requiring minimal distortion after machining operations. --- ## **1. Chemical Composition** | Element | Content (%) | |---------|-------------| | **Aluminum (Al)** | Balance | | **Copper (Cu)** | 3.3 - 4.5 | | **Magnesium (Mg)** | 0.30 - 0.8 | | **Manganese (Mn)** | 0.30 - 0.8 | | **Silicon (Si)** | 0.30 - 0.8 | | **Iron (Fe)** | ≤ 0.35 | | **Zinc (Zn)** | ≤ 0.25 | | **Titanium (Ti)** | ≤ 0.10 | | **Chromium (Cr)** | ≤ 0.10 | | **Other Elements** | ≤ 0.15 total | --- ## **2. Physical Properties** | Property | Value / Description | |----------|---------------------| | **Density** | 2.78 g/cm³ (0.100 lb/in³) | | **Melting Range** | 515°C - 645°C (959°F - 1193°F) | | **Electrical Conductivity** | 34-38% IACS | | **Thermal Conductivity** | 130-140 W/m·K | | **Coefficient of Thermal Expansion** | 23.3 × 10⁻⁶/°C (20-100°C) | | **Modulus of Elasticity** | 72.0 GPa (10,440 ksi) | | **Poisson's Ratio** | 0.33 | | **Specific Heat Capacity** | 880 J/kg·K | --- ## **3. Mechanical Properties** **Typical Mechanical Properties (T351 Temper):** | Property | Value | |----------|-------| | **Tensile Strength** | 390-440 MPa (57-64 ksi) | | **Yield Strength (0.2% Offset)** | 250-300 MPa (36-44 ksi) | | **Elongation in 2 inches** | 10-16% | | **Shear Strength** | 235-265 MPa (34-38 ksi) | | **Fatigue Strength** | 130 MPa (19 ksi) | | **Brinell Hardness** | 105-120 HB | | **Compressive Yield Strength** | 250-300 MPa (36-44 ksi) | | **Fracture Toughness** | 25-30 MPa√m | --- ## **4. International Standards** | Standard System | Designation | Product Form | |-----------------|-------------|--------------| | **ASTM** | ASTM B209 | Plate | | **ASTM** | ASTM B211 | Bar | | **AMS** | AMS 4116 | Plate | | **EN** | EN AW-2030 [T351] | Plate, Bar | | **ISO** | ISO 6361 | Wrought Products | --- ## **5. Product Applications** **Aerospace Structural Components:** - Aircraft wing ribs and spars - Fuselage frames and bulkheads - Landing gear support structures - Helicopter structural components - Space vehicle structural members **Precision Machined Components:** - Aircraft fittings and brackets - Machine tool components - Precision instrument parts - Optical mounting systems - Testing equipment frames **Transportation Applications:** - Heavy vehicle structural members - Railway bogie components - Marine vessel structures - Special vehicle chassis parts - Transportation equipment frames **Industrial Machinery:** - Machine bases and frames - Equipment support structures - Precision guide rails - Industrial robot components - Specialized tooling plates --- ## **6. Key Advantages & Considerations** **Advantages:** - ✅ **Excellent Dimensional Stability** for machining - ✅ **Good Strength-to-Weight Ratio** - ✅ **Superior Machining Characteristics** - ✅ **Minimal Distortion** after machining - ✅ **Good Stress-Corrosion Resistance** - ✅ **Reliable Mechanical Properties** **Considerations:** - ⚠️ **Requires Corrosion Protection** - ⚠️ **Limited to Specific Product Forms** (plate/bar) - ⚠️ **Higher Cost** than standard T3 temper - ⚠️ **Specialized Heat Treatment** required - ⚠️ **Not Suitable for Severe Forming** operations --- ## **Heat Treatment Process** **T351 Temper Process:** 1. **Solution Heat Treatment:** - Temperature: 495-505°C (923-941°F) - Controlled atmosphere heating - Soak time based on thickness 2. **Stress Relieving:** - 1.5-3% permanent stretch - Controlled stretching process - Stress equalization 3. **Natural Aging:** - Room temperature aging - Properties stabilize in 4-7 days - No artificial aging required --- ## **Machining Characteristics** **Machinability:** Very Good **Tooling:** Carbide tools recommended for production **Surface Finish:** Excellent with proper techniques **Dimensional Stability:** Superior for precision components **Chip Formation:** Good chip control --- ## **Stress Relief Benefits** **Key Advantages of T351 Temper:** - Reduced residual stresses from quenching - Minimal distortion during machining - Improved dimensional accuracy - Better part-to-part consistency - Reduced need for stress relieving after machining --- ## **Quality Assurance** **Standard Testing Requirements:** - Tensile testing per ASTM E8 - Hardness verification - Ultrasonic inspection - Stress-corrosion testing - Microstructural examination --- ## **Conclusion** 2030-T351 Aluminum Alloy provides an optimal solution for applications requiring high strength combined with exceptional dimensional stability for precision machining. The specific stress-relieving process in the T351 temper distinguishes it from standard T3 material, offering manufacturers reduced distortion and improved machining accuracy. This makes it particularly valuable for aerospace structural components, precision machinery parts, and applications where maintaining tight tolerances during manufacturing is critical. While commanding a premium over standard tempers, the T351 condition delivers significant value through reduced scrap rates, improved manufacturing efficiency, and reliable performance in demanding applications.

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 1560 gallon liquid totes Special package is available on request.