Product Advantage
Exceptional Lightweight & Energy Efficiency: With a density of 2.7g/cm³—only 1/3 that of steel—these aluminum extrusion components reduce overall vehicle weight by 30-40%. For EVs, this weight reduction translates to a 15-20% extension in battery range (e.g., adding 80-120km to a 600km-range EV) and lowers annual energy consumption by 8-10% for internal combustion engine (ICE) vehicles.
Superior Strength & Crash Safety: 6082-T6 aluminum (tensile strength ≥310MPa, yield strength ≥250MPa) and 7075-T6 aluminum (tensile strength ≥570MPa) provide excellent impact resistance. Hollow extrusion door beams, for example, absorb 25% more crash energy than steel beams, meeting global NCAP 5-star safety standards. Multi-cavity chassis frames also enhance torsional rigidity by 30%, improving vehicle handling.
Corrosion Resistance & Long Service Life: The surface undergoes chromate conversion coating (CCC) and powder coating (60-80μm thickness), withstanding 1000 hours of neutral salt spray testing (ASTM B117) without rusting. This ensures components remain durable in harsh environments (e.g., coastal roads with salt spray), extending the vehicle’s service life to 15-20 years.
High Design Flexibility & Integration: Precision extrusion supports complex cross-sections—such as multi-cavity battery case supports (to hold EV batteries securely) and variable-thickness roof rails (for weight distribution). CNC machining (tolerance ±0.05mm) enables seamless integration with other vehicle parts (e.g., welding to steel frames via aluminum-steel hybrid joining technology), reducing assembly steps by 20%.
Eco-Friendly & Cost-Effective: 100% recyclable aluminum aligns with automotive sustainability goals (recycled aluminum uses 95% less energy than primary aluminum production). Mass extrusion production (output up to 600m/h) lowers unit costs by 18% compared to aluminum casting components, making them suitable for large-scale vehicle manufacturing.
Technical Parameters
Parameter | Specification | Unit | Test Standard |
Material | 6082-T6, 7075-T6 Aluminum Alloy | - | ASTM B221 |
Tensile Strength (6082-T6) | ≥310 | MPa | ASTM B557 |
Tensile Strength (7075-T6) | ≥570 | MPa | ASTM B557 |
Yield Strength (6082-T6) | ≥250 | MPa | ASTM B557 |
Yield Strength (7075-T6) | ≥500 | MPa | ASTM B557 |
Density | 2.7 | g/cm³ | ASTM B328 |
Cross-Section Type | Hollow / Solid / Multi-Cavity (Customizable) | - | Customer Requirement |
Dimensional Range (Customizable) | Length: 500-5000; Width: 20-300; Height: 10-200 | mm | GB/T 6892 |
Machining Tolerance | ±0.05 | mm | ISO 2768-1 |
Surface Treatment | Chromate Conversion Coating (CCC), Powder Coating (60-80μm) | - | ASTM B981 |
Corrosion Resistance | ≥1000 | Hours (Neutral Salt Spray Test) | ASTM B117 |
Impact Strength (23℃) | ≥12 | kJ/m² | ASTM E23 |
Elongation at Break | ≥10 | % | ASTM B557 |
Applicable Vehicle Type | Passenger Cars, EVs, Commercial Vehicles | - | IATF 16949 |
Product Uses
1. EV Battery Case Supports: Multi-cavity 6082-T6 aluminum extrusion components hold EV lithium-ion batteries securely, with a load-bearing capacity of 500-800kg. The hollow structure reduces weight by 35% vs. steel supports, while the corrosion-resistant coating protects batteries from moisture—critical for maintaining battery performance and safety.
2. Automotive Door Beams: 7075-T6 aluminum extrusion door beams (cross-section: 40×80mm hollow) absorb crash energy during side impacts, meeting FMVSS 214 side crash standards. Their lightweight design also reduces door weight by 40%, improving vehicle fuel efficiency.
3. Chassis Frames & Roof Rails: 6082-T6 multi-cavity chassis frames enhance torsional rigidity (up to 25,000 N·m/rad) for better handling, while variable-thickness roof rails (3-5mm) distribute weight evenly across the vehicle body. These components are widely used in mid-to-high-end passenger cars and SUVs.
4. Commercial Vehicle Body Parts: Solid 6082-T6 aluminum extrusion components (e.g., truck side rails, van floor supports) withstand heavy loads (1000-2000kg) and resist corrosion from road salt. They reduce commercial vehicle weight by 30%, lowering fuel consumption by 8-12% (e.g., saving 150L of diesel annually for a 10-ton truck).
Product Operate Guide
1. Pre-Installation Preparation: Confirm component dimensions (length, cross-section) match vehicle design drawings. Clean the surface with industrial alcohol to remove oil and dust—critical for ensuring strong welding or bonding with other parts.
2. Installation Steps: For EV battery case supports, use M8-M12 high-strength bolts (torque 25-35N·m) to fasten to the vehicle chassis. For door beams, use aluminum-steel friction stir welding (FSW) to join with steel door frames—this avoids galvanic corrosion and ensures joint strength ≥200MPa.
3. Post-Installation Inspection: Use a laser alignment tool to check component position (tolerance ≤0.5mm). Conduct a load test (e.g., applying 1.2× rated load to battery supports) to verify structural stability.
4. Maintenance Tips: For passenger vehicles, wash components with neutral car detergent monthly to remove road salt. For commercial vehicles, inspect the powder coating every 6 months—touch up scratches with automotive-grade aluminum paint to prevent corrosion.
FAQ
1. Q: Can these components be used in cold regions (e.g., -40℃)?
A: Yes. 6082-T6 and 7075-T6 alloys maintain 90% of their mechanical properties at -40℃. We also offer low-temperature-resistant powder coating (effective down to -50℃) for vehicles in extremely cold areas, with a lead time of 7-10 working days.
2. Q: How to resolve galvanic corrosion when joining aluminum components with steel parts?
A: Use galvanic isolation gaskets (e.g., rubber or plastic) between aluminum and steel, and apply anti-corrosion sealant to the joint. We also offer zinc-nickel plated bolts (corrosion resistance ≥1000 hours salt spray) for additional protection.
3. Q: What is the warranty period for these components?
A: We provide a 5-year warranty for material defects (e.g., cracking, corrosion) and manufacturing errors. For vehicle manufacturers, we also offer technical support for assembly issues during the warranty period.
