6042 Aluminum alloy,Aluminum 6042 alloy,E FORU

### **Product Introduction: 6042 Aluminum Alloy** **6042 Aluminum Alloy** is a specialized heat-treatable aluminum-magnesium-silicon (Al-Mg-Si) alloy developed for applications requiring superior strength and excellent thermal stability. This alloy is particularly designed for components operating in elevated temperature environments while maintaining good mechanical properties and corrosion resistance. --- ### **1. International Standards** 6042 Aluminum Alloy is recognized under the following international standards: - **AA (Aluminum Association, USA):** AA 6042 - **UNS (Unified Numbering System):** UNS A96042 - **ISO (International Organization for Standardization):** AlMg1.0Si - **ASTM:** ASTM B221 (Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, and Profiles) --- ### **2. Chemical Composition** The chemical composition limits (in weight percentage) are specified as follows: | Element | Content (%) | |:---------|:------------| | **Aluminum (Al)** | Balance | | **Silicon (Si)** | 0.80 - 1.3 | | **Magnesium (Mg)** | 0.80 - 1.3 | | **Manganese (Mn)** | 0.30 - 0.8 | | **Copper (Cu)** | 0.15 - 0.40 | | **Iron (Fe)** | ≤ 0.20 | | **Chromium (Cr)** | 0.15 - 0.30 | | **Zinc (Zn)** | ≤ 0.10 | | **Titanium (Ti)** | ≤ 0.10 | | **Zirconium (Zr)** | 0.05 - 0.15 | | **Others (each)** | ≤ 0.05 | | **Others (total)** | ≤ 0.15 | **Key Takeaway:** The enhanced magnesium-silicon ratio combined with zirconium addition provides improved thermal stability and strength retention at elevated temperatures. The controlled copper content optimizes strength while maintaining adequate corrosion resistance. --- ### **3. Physical Properties** The typical physical properties of 6042 aluminum alloy are: | Property | Metric Value | Imperial Value | |:----------|:-------------|:---------------| | **Density** | 2.71 g/cm³ | 0.0979 lb/in³ | | **Melting Range** | 590 - 645 °C | 1094 - 1193 °F | | **Coefficient of Thermal Expansion** | 23.2 × 10⁻⁶/°C (20-100°C) | 12.9 × 10⁻⁶/°F (68-212°F) | | **Thermal Conductivity** | 155 - 175 W/m·K | 895 - 1010 BTU·in/(hr·ft²·°F) | | **Electrical Conductivity** | 42-46% IACS | 42-46% IACS | | **Modulus of Elasticity** | 70.5 GPa | 10,220 ksi | | **Shear Modulus** | 26.5 GPa | 3,840 ksi | --- ### **4. Mechanical Properties** Mechanical properties demonstrate excellent strength and thermal stability: **Temper: T6** (Solution heat-treated and artificially aged) - **Tensile Strength:** 340 - 390 MPa (49 - 57 ksi) - **Yield Strength (0.2% Offset):** 300 - 350 MPa (44 - 51 ksi) - **Elongation (% in 50mm):** 10-14% - **Hardness (Brinell):** 100 - 110 HB **Elevated Temperature Performance** (at 150°C/300°F): - **Tensile Strength Retention:** ~85% of room temperature strength - **Yield Strength Retention:** ~80% of room temperature strength - **Creep Resistance:** Good performance up to 200°C (390°F) **Temper: T651** (Solution heat-treated, stress-relieved, and artificially aged) - **Tensile Strength:** 350 - 400 MPa (51 - 58 ksi) - **Yield Strength (0.2% Offset):** 310 - 360 MPa (45 - 52 ksi) - **Elongation (% in 50mm):** 9-12% --- ### **5. Product Applications** 6042 Aluminum Alloy is used in demanding applications requiring thermal stability: - **High-Temperature Components:** - Engine and powertrain components - Exhaust system parts - Heat exchanger components - Thermal management systems - **Aerospace Applications:** - Aircraft structural components - Engine bay components - Aerospace fittings and brackets - Thermal protection system supports - **Automotive Applications:** - Turbocharger components - Engine mounting systems - High-temperature brackets - Powertrain structural parts - **Industrial Equipment:** - High-temperature machinery parts - Processing equipment components - Thermal processing fixtures - Industrial oven components --- ### **6. Key Characteristics & Advantages** - **Excellent Thermal Stability:** Superior strength retention at elevated temperatures compared to conventional 6000-series alloys. - **High Strength-to-Weight Ratio:** Provides excellent mechanical properties combined with lightweight characteristics. - **Good Creep Resistance:** Maintains dimensional stability under sustained loading at elevated temperatures. - **Enhanced Corrosion Resistance:** Controlled chemistry provides adequate corrosion resistance for demanding environments. - **Good Fatigue Performance:** Excellent resistance to cyclic loading at both room and elevated temperatures. - **Weldability:** Can be welded using conventional methods with proper procedures for high-temperature applications. - **Stable Microstructure:** Zirconium addition promotes fine grain structure and thermal stability. --- ### **7. Processing Characteristics** **Heat Treatment Parameters:** - Solution Heat Treatment: 525-545°C (975-1015°F) - Quenching: Controlled rate quenching for optimal properties - Artificial Aging: 165-185°C (330-365°F) for 6-10 hours for T6 temper **Machining Performance:** - **Machinability Rating:** 65-75 (compared to 2011-T3 as 100) - Requires adequate power and cooling - Good surface finish achievable with proper parameters - Moderate tool wear characteristics **Forming Characteristics:** - Best formed in annealed (O) condition - Moderate formability in T4 temper - Limited formability in T6/T651 tempers - Springback significant in high-strength tempers --- ### **8. Special Properties** **Thermal Performance:** - **Maximum Service Temperature:** 200°C (390°F) continuous - **Short-term Exposure:** Up to 250°C (480°F) - **Thermal Fatigue Resistance:** Excellent for aluminum alloys - **Oxidation Resistance:** Good up to recommended service temperatures **Corrosion Performance:** - **General Corrosion:** Good resistance to atmospheric exposure - **Stress Corrosion Cracking:** Adequate resistance with proper heat treatment - **High-Temperature Oxidation:** Good resistance within service limits --- ### **9. Comparative Advantages** **vs. Conventional 6000-series:** - Superior high-temperature strength retention - Better creep resistance - Enhanced thermal stability - Improved microstructural stability **vs. 6061 Alloy:** - 15-20% higher strength at elevated temperatures - Better thermal stability - Superior performance in high-temperature applications **vs. 2618 Alloy:** - Better corrosion resistance - Superior room temperature strength - More cost-effective for many applications --- ### **10. Quality and Certification** **Industry Compliance:** - Meets ASTM and ISO standards - Suitable for high-temperature applications - Compliant with automotive and aerospace requirements - Full traceability and certification available **Testing Requirements:** - Elevated temperature mechanical testing - Creep and stress rupture testing - Thermal stability evaluation - Comprehensive quality assurance --- ### **Summary** **6042 Aluminum Alloy** represents a significant advancement in high-temperature aluminum alloy technology, specifically engineered for applications requiring superior thermal stability and strength retention at elevated temperatures. Its optimized chemical composition, particularly the zirconium addition and enhanced magnesium-silicon ratio, provides exceptional performance in demanding thermal environments. The alloy's combination of high strength, excellent thermal stability, and good corrosion resistance makes it particularly valuable for automotive powertrain components, aerospace structures, and industrial equipment operating at elevated temperatures. While requiring more specialized processing than conventional aluminum alloys, 6042 offers a compelling solution for applications where aluminum's lightweight advantages are needed in combination with improved high-temperature performance, filling an important gap between conventional aluminum alloys and more expensive high-temperature materials.

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 1981 gallon liquid totes Special package is available on request.