Changzhou Dingang Metal Material Co.,Ltd.
| Payment Terms | L/C,T/T,Western Union,MoneyGram |
| Supply Ability | 5000 Tons / Per Month |
| Delivery Time | Within 35 Days After Order Confirmed And Down Paymetn Received |
| Packaging Details | Seaworthy Packing With Wooden Pallet |
| Name | Aluminum Alloy 5052 Aluminum Sheet for Car Door Inner Panels (1.2–1.8 mm | Custom Width | Bright Annealed Condition) |
| Alloy | 5052 |
| Thickness | 1.2–1.8mm |
| Width | Customizable(mm) |
| color | Customizable |
| shape | coil |
| Process | rolling |
| paint coating | PE PVDF etc. |
| Recyclable | Yes |
| Brand Name | Dingang |
| Model Number | 1.2–1.8mm×Customizable(mm)-Aluminum alloy 5052 |
| Certification | SGS,ITS,BV |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C,T/T,Western Union,MoneyGram | Supply Ability | 5000 Tons / Per Month |
| Delivery Time | Within 35 Days After Order Confirmed And Down Paymetn Received | Packaging Details | Seaworthy Packing With Wooden Pallet |
| Name | Aluminum Alloy 5052 Aluminum Sheet for Car Door Inner Panels (1.2–1.8 mm | Custom Width | Bright Annealed Condition) | Alloy | 5052 |
| Thickness | 1.2–1.8mm | Width | Customizable(mm) |
| color | Customizable | shape | coil |
| Process | rolling | paint coating | PE PVDF etc. |
| Recyclable | Yes | Brand Name | Dingang |
| Model Number | 1.2–1.8mm×Customizable(mm)-Aluminum alloy 5052 | Certification | SGS,ITS,BV |
| Place of Origin | China | ||
| High Light | 5052 aluminum alloy car door sheet ，bright annealed aluminum sheet 1.8mm ，custom width prepainted aluminum coil | ||
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:
| Product | Aluminum Alloy 5052 Aluminum Sheet for Car Door Inner Panels (1.2–1.8 mm | Custom Width | Bright Annealed Condition) |
| Thickness | 0.01mm-2.5mm |
| Width | 800-2600mm |
| Materia | 5052 |
| Temper | O, H12, H14, H16, H18, H24, H26, H32, H34, etc |
| Inner Diameter | 405mm,505mm,150mm,etc. |
| Color | RAL, Pantone Color Or As Alient's Demand |
| Coating thickness | PVDF Paint Coating: Not Less Than 25um |
| PE Paint Coating : Not Less Than 18um | |
| Packing | Export Standard Wooden Pallets (Eye To Wall,Eye To Sky) |
| Payment Terms | L/C at sight or 30% T/T in advance as deposit, and 70% balance against the B/L copy. |
| MOQ | 1 Ton Per Specification |
| Delivery Time | Within 30 Days |
| Loading Port | Shanghai Port |
| Application | Car Door Inner Panels |
Core Benefits:
| Advantage | Detailed description |
| 35 % Lighter than Steel |
1.5 mm Al vs 0.8 mm BH steel → 4.5 kg/door.
|
| 200 % Elongation Hemming | Zero cracking on 180° outer-panel hem. |
| Zero Lüders Lines | Bright BA finish → invisible after painting. |
| Glue-Only Assembly | Perfectly flat for structural adhesive. |
| 60 % Faster Paint Shop | No pre-treatment needed before e-coat. |
| Eco-Friendly | GRS 4.0 ready, 95 % lower CO₂. |
Jaguar I-PACE (2018–)
1.5 mm 5052 BA door inners, 4 doors
300 000+ vehicles, zero hemming cracks
BMW i4 Gran Coupé (2022–)
1.2 mm ultra-flat BA sheet, 2200 mm width
Glue-only assembly line, 40 % faster than steel
Aston Martin DBX707 (2023–)
1.8 mm high-strength BA inners
400 Nm door-beam integration, passed 70 km/h side impact
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
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
Lighten every door TODAY!
FREE 1.5 mm bright-annealed sample
24 h door-inner quote |
Contact US NOW – make every door 4.5 kg lighter!
T: 0086 13961220663
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2002
Total Annual:
50 000 000-200 000 000
Employee Number:
800~1000
Ecer Certification：
Verified Supplier
Changzhou Dingang Metal Materials Co., Ltd. / Jiangsu Senruida New Materials Co., Ltd. is comprehensive enterprise integrating in production, processing, and sales. Situated in Changzhou City and Huai'an City, Jiangsu Province, we specialize in manufacturing color coated aluminum coils, film-coated ... Changzhou Dingang Metal Materials Co., Ltd. / Jiangsu Senruida New Materials Co., Ltd. is comprehensive enterprise integrating in production, processing, and sales. Situated in Changzhou City and Huai'an City, Jiangsu Province, we specialize in manufacturing color coated aluminum coils, film-coated ...
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