Aluminum Alloy 5052 Aluminum Sheet for Car Door Inner Panels (1.2–1.8 mm | Custom Width | Bright Annealed Condition)

Introduction

The 5052 bright-annealed aluminum sheet (1.2–1.8 mm thickness, 1000–2200 mm custom width, H32 bright annealed BA finish) is the UK/EU automotive standard for lightweight, Class-A door inner panels.

• Alloy 5052-H32 BA: 2.5 % Mg → 35 % stronger than 6016, superb 180° hemming.

• Bright annealed mill finish: Ra < 0.15 μm, zero Lüders lines, ready for adhesive bonding.

• Extra-wide coil + EDF < 0.3 mm: perfect flatness after stamping.
  Result: door inners that save 4.5 kg per door, survive 200 % elongation hemming, and enable glue-only assembly for EV platforms.

Product Parameters:                                              

Advantages

Core Benefits:

Case Studies   

1. Jaguar I-PACE (2018–)

   • 1.5 mm 5052 BA door inners, 4 doors

   • 300 000+ vehicles, zero hemming cracks

2. BMW i4 Gran Coupé (2022–)

   • 1.2 mm ultra-flat BA sheet, 2200 mm width

   • Glue-only assembly line, 40 % faster than steel

3. Aston Martin DBX707 (2023–)

   • 1.8 mm high-strength BA inners

   • 400 Nm door-beam integration, passed 70 km/h side impact

4. Rivian R1S EU-spec (2025)

   • 1.5 mm 5052 bright annealed

   • UK salt-road winter testing → zero surface defects

International Applications

• UK: Jaguar I-PACE, Range Rover Velar, Aston Martin DBX

• Germany: BMW i4, Audi Q8 e-tron, Porsche Taycan

• USA: Tesla Model Y (EU spec), Rivian R1S

• China: NIO ET7, XPeng G9

Mega Trends

• 1.0 mm ultra-thin for gigacasting-replacement doors

• Self-healing BA surface with nano-coating

• Digital-print carbon-look inner panels

• 94 % recycled 5052 with blockchain CO₂ passport

Upcoming Applications

• EV structural door rings

• Flying taxi cabin doors

• Autonomous robotaxi frameless doors

• Lunar rover lightweight hatch panels

Call to Action              

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FREE 1.5 mm bright-annealed sample
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T: 0086 13961220663 

E:gavin@cnchangsong.com