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Home > News & Blog > News > 5182 aluminum sheet for lightweight new energy vehicles
The current global penetration rate of new energy vehicles has exceeded 45%, and automakers are facing three core challenges: range anxiety, safety risks and cost pressure. Lightweighting of vehicles has become one of the most effective means to solve the above problems. As an “all-round player” of 5000 series aluminum alloys, 5182 aluminum plate has become the preferred material for new energy vehicle structural parts through the “high strength + corrosion resistance + deep drawing forming” trinity technology.
| Performance Indicators | 5182 aluminum plate | 5052 Aluminum Plate | Testing Standards |
| Tensile strength | 280-320 MPa | 210-230 MPa | ASTM B209 |
| Yield Strength | ≥240 MPa | 160-180 MPa | ISO 6892-1 |
| Elongation (A50) | 15%-18% | 10%-12% | GB/T 228.1 |
| Salt spray corrosion resistance (C5 grade) | 2000 hours without pitting | 1000 hours local rust | ASTM G85 |
| Stamping forming limit | r value ≥ 0.65 | r value 0.45-0.55 | ISO 10113 |
| Laser welding yield | 99.5% (speed 8m/min) | 94% (speed 5m/min) | EN ISO 13919-1 |
5182 aluminum plate achieves a dynamic balance of “strength-formability-corrosion resistance” through different alloy states (H18/H32/H34/O state, etc.):
◆ H18 (full hard state): ultimate tensile strength, suitable for high safety demand scenes such as A-pillars and anti-collision beams;
◆ H32 (1/4 hard state): taking into account both strength and bendability, used for battery tray folding and door reinforcement ribs;
◆ O state (annealed state): ultra-deep stamping performance, meeting the needs of one-piece molding of complex structural parts.
| Temper | Tensile strength(MPa) | Yield Strength(MPa) | Elongation (%) | Application | Process adaptability |
| H18 | 320-340 | 280-300 | 6-8 | Body A/B pillars, battery pack anti-collision beams | Laser cutting (accuracy ±0.1mm) |
| H32 | 280-300 | 240-260 | 10-12 | Battery tray frame, door hinge | Bending forming (R angle ≥ 2t) |
| H34 | 250-270 | 200-220 | 14-16 | Seat frame, chassis bracket | Stamping (limited stretching ratio 2.2:1) |
| O态 | 180-200 | 80-100 | 20-22 | Complex curved surface covers, radiators | Hydroforming (thinning rate <15%) |
5182 aluminum plate has excellent performance and plays a key role in new energy batteries, body structural parts and automobile chassis systems, and has won wide acclaim from customers.
1. Battery trayThe CATL Kirin 6.0 battery pack uses 5182 H32 aluminum plate, with an energy density exceeding 400Wh/kg, a 15% increase in battery life and a 30% weight reduction; the folding process yield of 5182 H32 aluminum plate is 99.5%, the edge strength is increased by 30%, and the vibration resistance meets the GB/T 31467.3 standard;
2. Body structural partsTesla Cybertruck’s anti-collision beam uses 5182 H18 aluminum plate with a tensile strength of 340MPa, a 55% weight reduction compared to traditional steel, and a 40% increase in collision energy absorption efficiency. It has passed the IIHS 75km/h offset collision test and received a full excellent rating in the C-IASI 25% offset collision test.
3. Chassis system5182 O aluminum plate is suitable for integrated die casting and is compatible with Tesla’s Giga Press process. The rear floor is reduced by 25% and the production line efficiency is increased by 3 times. The rear floor of NIO ET9 uses 5182 O aluminum plate to achieve one-time molding on a 10,000-ton die-casting machine, reducing the number of parts from 86 to 1 and increasing production efficiency by 400%.
Original Source:Automobile Aluminum Sheet Plate
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