3105 Aluminum Sheet for Bottle Cap Material
3105 aluminum alloy is a specialized material for producing bottle caps. As an Al-Mn alloy, it offers excellent corrosion resistance, moderate strength, and outstanding formability. With precision rolling and surface treatment, it meets the requirements of stamping, coating, and printing processes.
Why choose 3105 for bottle caps?
Stable chemical composition ensures no deformation or cracking during sealing and opening.
Strong corrosion resistance against beverages, alcohol, and pharmaceuticals.
Smooth surface, ideal for coating, printing, and branding.
Food-grade safe, recyclable, and eco-friendly.
Product Specifications
| Item | Range / Notes |
|---|---|
| Alloy | 3105 |
| Temper | H14, H16, H18, H19 |
| Thickness | 0.15 – 0.30 mm (typical for caps) |
| Width | 200 – 1600 mm (custom cutting available) |
| Supply form | Coil, slitting & sheet cutting available |
| Surface | Smooth, clean; anodizing, DOS oil, coating, custom logo |
| Standard | GB/T, EN, ASTM |
| Packaging | Moisture-proof paper + anti-oxidation film + wooden case |

What 3105 aluminum sheet coil used for?
Beverage caps: carbonated drinks, water, juice.
Pharmaceutical caps: aluminum-plastic closures, easy-open caps.
Alcohol caps: wine, liquor, beer anti-theft caps.
Food packaging: oil caps, condiment caps, coffee cans.
Other uses: partition panels, cladding, roofing sheets, blinds, lamp bases, gutters, downpipes.
Main advantages of 3105 aluminum sheet
Excellent formability: suitable for stamping, drawing, and spinning.
High corrosion resistance: withstands complex beverage and medical environments.
Superior printing surface: strong coating adhesion, clear branding effect.
Stable performance: consistent sealing and opening.
Safe & eco-friendly: food-grade compliant, fully recyclable.
3105 and 8011 aluminum Material Comparison
3105 vs 8011: 3105 has higher strength and better printing results; 8011 offers greater elongation for deep drawing.
Aluminum vs Plastic Caps: Aluminum provides better sealing, durability, and recyclability, while plastic caps are cheaper but less eco-friendly.
FAQ
Q1: What is the common thickness?
A: 0.15–0.30 mm depending on cap type.
Q2: Do you offer coated or printing-grade surface?
A: Yes, anodizing, colored coating, DOS oil available.
Q4: Coil or sheet supply?
A: Both, coils and slitting and sheets available on request.
Q5: What is the MOQ?
A: Standard size 5 tons, special specs based on the actual discussion.
Shenzhen Chinalco Metal Supply & Service
Ready stock: common sizes available for fast delivery.
Customization: cutting, slitting, coating services.
Quality assurance: food-grade certified, 100% inspected before shipment.
Fast delivery: fast shipping for stock; flexible lead time for custom orders.
Secure packaging: moisture-proof, anti-scratch, export-ready.
Contact us for samples and the latest prices of 3105 aluminum bottle cap material. We ensure reliable supply for your cap production!



