Haomei Aluminum supplies aluminum sheets and coils for bottle cap and closure manufacturing. We provide closure stock in selected alloys, tempers, dimensions and surface conditions to suit different forming processes and finishing requirements.
Our main alloy options include 8011, 3105, 3104, 5182, 5052 and 1060 aluminum. Depending on the closure design and production line, the material can be supplied for ROPP caps, wine screw caps and pharmaceutical vial seals.
- Product form
- Sheets and coils
- Main alloy options
- 8011 / 3105
- Surface
- As specified
- Dimensions
- Confirm by order
Aluminum Closure Stock Specifications
| Parameter | Specification |
| Product Form | Sheets, strips and coils for cap forming and packaging applications. |
| Common Alloys | 8011, 3104 and 3105. Specialty options such as 1060, 1070, 5005, 5182 and 5657 are subject to application and availability. |
| Applications | Bottle caps, screw caps, ROPP closures, pharmaceutical seals and cosmetic caps. |
| Temper | Selected according to forming requirements and finished-cap strength. |
| Thickness | Typically 0.125–0.50 mm for many closure applications. Other thicknesses are subject to alloy, temper and application requirements. |
| Dimensions and Tolerances | Custom thickness, width, sheet length and dimensional tolerances, subject to production capability. |
| Coil Specifications | Inside diameter (ID), outside diameter (OD) and coil weight according to processing equipment requirements. |
| Surface and Coating | Mill finish, DOS oiling, specified surface treatment, color coating or printing-grade finish, subject to confirmation. |
| Mechanical Properties | Tensile strength, yield strength and elongation according to the agreed alloy, temper and material standard. |
| Quality Documents | Material certificates, inspection reports and applicable compliance documentation as agreed before ordering. |
| MOQ and Lead Time | Confirmed according to alloy, dimensions, order quantity and processing requirements. |
| Packaging | Export packaging for sheets, strips and coils, with moisture and surface protection as required. |
Request an Aluminum Closure Stock Quote
For coils, specify the inside diameter, maximum outside diameter and coil weight limits. Please also provide the delivery destination, requested delivery date and any inspection or compliance documents required. If the material grade has not been finalized, share the closure design and processing details for review.
Send Your RequirementChoose the Right Aluminum Alloy for Your Closure Stock
8011 Aluminum Closure Stock
8011 is worth considering for closures that need a balance of formability, strength and consistent surface quality. The final temper and gauge should match the forming process, whether the material is stamped, drawn or finished with a coating.
3105 Aluminum Closure Stock
3105 is an aluminum-manganese alloy used for selected bottle caps and screw closures. It offers a useful balance of strength, formability and corrosion resistance, particularly where the formed cap needs to retain its shape.
3104 Aluminum Alloy
3104 is commonly associated with drawn and formed packaging components that require strength and controlled wall deformation. Consider it when the closure design and forming route call for these properties, and confirm suitability against the actual cap specification.
3004 Aluminum Alloy
3004 provides higher strength than commercially pure aluminum and is used in formed packaging and other drawn components. Its suitability for closure stock depends on the required forming depth, final geometry and temper.
1060 Aluminum Alloy
With its high aluminum content and good ductility, 1060 can be considered for selected stamped caps and closures where formability is important. The required temper and thickness should be checked against the cap's strength and dimensional requirements.
5052 / 5182 Aluminum Alloys
These magnesium-bearing alloys are options for applications where greater strength is needed. They should be assessed against the closure design, forming method and performance requirements rather than treated as direct substitutes for standard cap-stock alloys.
1070 / 1080 / 5005 / 5657 Aluminum Alloys
These alloys may be considered for specialized closure components where purity, surface appearance, finishing response or application-specific properties matter. Confirm the exact alloy, temper and processing requirements before specifying them for production.
You can also explore our 3105 aluminum sheet and plate and aluminum strip pages for additional material information.
Aluminum Closure Sheets and Coils
Choosing between sheets and coils starts with how your production line handles the material. Check the feeding method and working dimensions of your coating, printing and cap-forming equipment before specifying the supply format.
Sheets for Sheet-Fed Processing
For sheet-fed coating, printing or blanking, aluminum closure sheets provide material in cut lengths. Specify the sheet dimensions around your equipment and blank layout, with agreed tolerances for flatness and squareness.
Surface condition also matters, particularly when the sheets will be coated or printed before forming.
Coils for Continuous Feeding
For lines equipped with an uncoiler and continuous feed system, aluminum closure coils allow material to feed into the line without loading individual sheets. Match the coil width to the tooling layout and the line's working-width limits.
Confirm the inner diameter, maximum outer diameter and coil weight against your uncoiling and handling equipment.
Which format fits your line? Send your equipment's material requirements, including the alloy, temper, thickness and accepted sheet or coil dimensions. If coating or printing takes place on a separate line, include those requirements too—the stock needs to suit each stage of production.
Aluminum Materials for Bottle Caps, Vial Seals and Packaging Closures
The right aluminum closure stock depends on how the part is formed, decorated and used. A long wine cap needs different forming properties from a shallow vial seal, while a yogurt lid must work with the cup material and heat-sealing process.
Aluminum for ROPP and Pilfer-Proof Caps
8011 aluminum closure sheet is widely used for roll-on pilfer-proof (ROPP) caps for spirits, beverages and other bottled products. Material selection should account for drawing depth, skirt geometry, thread rolling and the design of the tamper-evident band.
- Typical alloy: 8011
- Temper options: H14, H16, H44 and H46
- Surface options: mill finish, DOS-oiled, clear-lacquered or color-coated
See our aluminum for ROPP caps page for application-specific selection guidance.
Aluminum for Wine Screw Caps
Long-skirt wine closures need consistent sheet thickness and controlled forming behavior to keep the skirt even and the printed design aligned. 8011 is a common starting point, but the final specification should follow the cap dimensions, bottle finish and closure supplier's requirements.
Check surface quality, lacquer adhesion and resistance to scuffing during forming and handling. Opening torque and tamper-band performance also depend on cap geometry and application settings, not just the aluminum alloy.
When specifying aluminum for wine screw caps, include the cap height, diameter, liner system and decoration process.
Aluminum for Pharmaceutical Vial Seals
1060 and 3003 aluminum are options for pharmaceutical vial seals, depending on the seal design and forming requirements. Consistent thickness, clean surfaces and controlled mechanical properties help support stamping, crimping and assembly.
Review our aluminum for pharmaceutical vial seals with your seal drawing, surface requirements and documentation needs before confirming the material.
Aluminum for EOE and Can Ends
Easy-open ends require a balance of strength, formability and controlled opening performance. 5182 is widely used for beverage can ends and tabs. Other alloys, including 5052 and 8011, may be considered for specific end designs, but are not interchangeable with pressure-rated beverage-end stock.
Select the alloy, temper and gauge around the end diameter, pressure requirement, score design and processing conditions.
Aluminum for Omnia and Specialty Jar Lids
8011 aluminum can be considered for shallow-drawn Omnia-style lids and certain specialty jar closures. The material needs to form cleanly while maintaining a suitable surface for lacquer and printing.
For hot-filled, pasteurized or retorted products, verify the inner coating and sealing compound under the intended time-temperature cycle and with the actual contents.
8011 Aluminum Foil for Yogurt Lids
8011 aluminum foil is used in yogurt and dairy lidding structures. It can be supplied for printing, embossing and heat-seal coating, depending on the lid construction and filling-line requirements.
Specify foil thickness, pinhole limits, peel behavior and the cup substrate, such as PP, PS or PET. The heat-seal coating must match that substrate and seal reliably within the filling line's temperature, pressure and dwell-time range.
Aluminum for Cosmetic Caps and Decorative Shells
Perfume caps, lipstick shells and other cosmetic components often use 1070, 1080, 5005 or 5657 aluminum, depending on the part geometry and intended finish. Deep drawing, polishing and anodizing place different demands on the stock, so these alloys should not be treated as equivalent.
High-purity 1070 and 1080 may suit components requiring substantial forming and a bright finish. 5005 and 5657 are also used for decorative anodized applications.
Surface Finishes and Coating Options for Aluminum Bottle Cap Stock
The surface finish of aluminum bottle cap stock depends on the forming process and the required appearance or coating system. Haomei can supply plain, lubricated and coated material to meet different cap production requirements.
- Plain Mill Finish: Aluminum with a standard mill-finished surface for cap forming and subsequent surface treatment.
- DOS Oil Lubricated Finish: A thin dioctyl sebacate (DOS) lubricant layer to support forming and reduce friction during production.
- Color-Coated Aluminum: Pre-coated stock in specified colors for bottle caps requiring a consistent decorative finish.
- Both-Sides Clear Lacquer: Transparent lacquer applied to both sides to provide the specified surface protection and finishing characteristics.
Aluminum Closure Stock Quality Control
Earing Control
Uneven rim height after forming can increase trimming waste and affect closure dimensions. Earing is influenced by the alloy, temper, rolling texture and forming conditions. Haomei can review the specified forming requirements and agreed test criteria when selecting aluminum stock for bottle caps and other closures.
Thickness Tolerance
Variations in aluminum thickness can affect blanking, forming pressure and the dimensions of the finished closure. Haomei supplies closure stock to agreed thickness tolerances, with inspection based on the ordered gauge and applicable measurement requirements.
Flatness and Surface Finish
Coil shape, sheet flatness, edge condition and surface defects can influence material feeding, printing and lacquer application. Surface inspection and flatness requirements are specified according to the intended process, with options such as mill finish, DOS oil lubrication and lacquered or color-coated surfaces available where applicable.
Request a Quote for Aluminum Closure Stock
Looking for a Suitable Aluminum Closure Stock Specification?
Whether you need 8011 or 3105 material in sheet or coil form, Haomei Aluminum can review your technical requirements and discuss an appropriate supply option.
Send Your RequirementFAQ – Aluminum Closure Stock
What is aluminum closure stock for bottle caps?
Aluminum closure stock is aluminum sheet or coil supplied for manufacturing bottle caps and closures. Depending on the application, it can undergo blanking, drawing, threading, coating, printing or other conversion processes before becoming a finished closure.
Which aluminum alloys are available for bottle cap manufacturing?
Haomei's target product range includes 8011 and 3105 aluminum closure stock. The suitable alloy depends on the closure design, required mechanical properties, forming depth, surface finish and production conditions. Availability of specific tempers and dimensions should be confirmed before ordering.
What is the difference between 8011 and 3105 aluminum closure stock?
Both 8011 and 3105 aluminum can be considered for closure applications, depending on the required balance of strength and formability. Performance also depends on temper, thickness, material properties, tooling and forming conditions, so the alloy designation alone is not sufficient to determine suitability.
Can aluminum closure stock be supplied in sheets and coils?
Haomei targets both sheet and coil supply forms for aluminum closure stock. Sheet dimensions and coil specifications, including width, inner diameter, outer diameter and coil weight, should be confirmed against the available production range and the customer's processing equipment.
Can aluminum closure stock be supplied with a coating?
Coated aluminum closure stock may be available depending on the required specification and confirmed production options. Requirements such as coating type, color, coating weight, coated side, adhesion and curing conditions should be provided for technical evaluation.
What information is needed to request a quotation for aluminum closure stock?
Please provide the alloy, temper, thickness, sheet dimensions or coil width, order quantity, intended application, surface finish or coating requirements and delivery destination. Drawings, applicable standards and inspection requirements are also helpful for confirming the specification and preparing a quotation.
Can Haomei provide samples and inspection documents?
Sample availability, inspection reports and material certificates can be discussed based on the requested specification. The available documentation, sample arrangements and any associated costs should be confirmed with Haomei's sales team.
What is the MOQ and lead time for aluminum closure stock?
The minimum order quantity (MOQ) and lead time depend on the alloy, temper, thickness, dimensions, surface requirements, order quantity and production schedule. Haomei can confirm these details after reviewing the complete inquiry.