Aluminum Can Sheet & Can Stock
Select aluminum can body, end and tab stock by alloy, temper, gauge, surface condition and demonstrated can-making performance. Keep can sheet distinct from foil and qualify the complete metal, coating and forming system.
General technical information published by PAXOMER Inc. to support preliminary material evaluation. It is compiled from the sources cited on this page and has not been independently reviewed or certified by a professional engineer, laboratory or certification body. Values marked typical, illustrative or requiring confirmation are not specifications. Confirm properties, standard editions, regulatory status and suitability for your specific application with the manufacturer and, where the use is regulated or safety-related, with a qualified professional or the relevant authority.
1. Quick answer
Select aluminum can body, end and tab stock by alloy, temper, gauge, surface condition and demonstrated can-making performance. Keep can sheet distinct from foil and qualify the complete metal, coating and forming system.
2. What does this material system do in an industrial application?
Aluminum can sheet is an engineered rolled input for making can bodies, ends and tabs. A purchasing decision must connect the mill specification to forming, coating, filling and distribution requirements. This guide concentrates on beverage-can stock and explains how to frame related food-can inquiries. It does not prescribe a universal gauge, mechanical-property limit or interchangeable alloy. Release requires agreement among the rolling mill, can maker and relevant coating and filling specialists.
3. What do the product names and technical terms mean?
Can stock describes material supplied for a defined can-making function; it is not a synonym for all thin aluminium. Packaging foil is a separate product class with different conversion requirements. Can body stock forms the shell, end stock forms the closure, and tab stock forms the opening component. Clarify whether an inquiry concerns bare coil, treated coil, coated coil or finished components. A foil supplier's description does not establish capability to supply draw-and-iron can stock.
4. What product types and classifications are available?
Classify the requirement by body, end or tab and by the can-making route. Separate beverage cans from food containers whose forming, filling or thermal-processing conditions differ. Also identify bare, pre-lubricated, pre-treated, lacquered or laminated material where offered. A general can-stock classification does not define a saleable grade: the purchase order needs the approved alloy-temper combination, dimensional limits and functional requirements for the specified component.
5. How does material composition affect performance?
The Aluminum Association identifies 5182 among beverage-can lid applications. A Novelis process-scrap specification identifies 3104/3004 body scrap and 5182 end/tab scrap, demonstrating established uses rather than universal prescriptions. These wrought-alloy designations must be paired with the required temper and producer specification. Verify composition limits through controlled mill documentation. Never substitute an alloy solely because its family number or a nominal tensile result looks similar.
6. How is the material manufactured and converted?
A mill route can include ingot casting, hot rolling, cold rolling and finishing, with treatment or coating according to the supplied product. During can body manufacture, drawing and ironing forms and thins the wall from a cup; the Can Manufacturers Institute describes the use of a punch and ironing rings. End-making uses a separate forming and conversion sequence. Confirm lubricant removal, coating stages and thermal history with the actual line because these influence downstream acceptance.
7. Which technical properties affect application performance?
Mechanical behaviour includes strength, elongation and directional formability, all interpreted at a stated test condition. Temper is a controlled designation, not a casual description such as hard or soft. Do not infer the properties after a coating bake from an unspecified as-received tensile result. Request data for the relevant delivery and processing condition. This guide intentionally gives no H-temper equivalence or numerical property range without an approved producer specification.
8. Which grades, dimensions and specifications should buyers compare?
Specify alloy and temper, nominal gauge, tolerance, width, edge condition, coil inside and outside diameters, coil mass, winding and splice policy. Define surface finish, cleanliness, oil or treatment condition and coating details where applicable. Ask how flatness and gauge profile will be measured and reported. The can sheet gauge must fit the approved blank and tooling design; gauge reductions need validation through forming, seaming, filling and required pack tests.
9. Where is this material used in industry?
Beverage body stock serves a forming route distinct from beverage end and tab stock. Food-can inquiries require the exact container design, contents, closure and processing conditions, rather than an assumption that beverage stock is appropriate. Describe pressure or vacuum duty, product chemistry, filling temperature and storage objective to the can maker. Those inputs guide material and coating selection; they are not performance claims for an unspecified aluminium coil.
10. Which requirements depend on the intended application?
For can body forming, evaluate cup quality, wall distribution, trimming behaviour and subsequent necking or flanging where used. For can end forming, evaluate shell geometry, score and rivet operations where applicable, opening function and closure performance. Food-can applications may require thermal-cycle and product compatibility assessment. Establish which organisation owns each test and acceptance limit before a mill trial; passing an incoming tensile test does not prove performance at every later stage.
11. How should buyers select a material for their process?
Start with the approved component drawing and the incumbent material record. Identify the reason for a new source: capacity, defect reduction, dimensional improvement or supply continuity. Request a proposed alloy-temper and surface specification, then review tooling and coating compatibility before committing production volume. Run a controlled trial through the relevant operations and retain a reference lot. Any change to gauge, alloy, temper, lubrication or coating should enter documented change review.
12. What performance advantages can the material offer?
A qualified can-sheet system enables thin formed packaging, decoration and collection of metal for recycling. Evaluate advantages using the finished container and actual production yield. Lightweighting is useful only when the can continues to meet its forming, filling and handling requirements. Avoid presenting the general recyclability of aluminium as evidence of a particular recycled percentage, recovery rate or environmental saving for an individual coil.
13. What limitations should buyers evaluate?
Formability and strength must be balanced for the component. Surface damage, unsuitable lubrication or an incompatible coating can defeat otherwise acceptable bulk properties. Aluminium does not make the complete package automatically suitable for every food or beverage. Internal coating and product compatibility require specific review. Thin stock is vulnerable to handling damage, while heavier stock can still fail if the forming route, surface condition or closure geometry is unsuitable.
14. What problems can occur during manufacturing?
Record earing, splits, wall damage, scratches, pickup on tooling, coating defects and closure failures separately. Earing describes a non-uniform cup rim associated with directional forming behaviour; it should not be confused with random edge damage. Capture coil position, rolling direction, tooling identification and process settings with defect samples. Do not assign a split to the mill without examining blank condition, lubrication, alignment and tooling history.
15. How should manufacturers investigate and correct process problems?
For a forming split, compare the failure location and material traceability with approved-run samples before changing several settings. For scratches, inspect incoming strip, guides and contact tooling to find where damage first appears. For coating loss, examine surface preparation, coating application, cure history and forming severity together. For excessive trimming loss, review cup geometry and directional behaviour. These are investigation paths, not proven diagnoses; document the cause and successful corrective trial before releasing repeat supply.
16. How should competing material options be compared?
Steel can material, different aluminium constructions and non-metal packaging provide different structural, barrier, filling and recovery functions. A material change can require different tooling, closures and corrosion protection. Foil is not a direct replacement for can body sheet. Compare an alternative using the complete package and production system, including capital changes, filling compatibility, product shelf life and distribution performance. Keep component redesign separate from a like-for-like supplier qualification.
17. Which differences matter when comparing technical data?
Compare product classes by forming duty and acceptance evidence, not by assuming that one nominal alloy can serve every component. The table below is a qualification framework rather than a grade substitution chart.
| Classification or comparison | Decision variable | Qualification evidence |
|---|---|---|
| Body stock | Drawing/ironing and subsequent forming | Approved body geometry, wall and surface results |
| End stock | Shell and end conversion | End geometry, closure and opening tests |
| Tab stock | Tab forming and attachment | Opening function and attachment evidence |
| Foil | Different thin-material conversion duty | Separate product specification; no automatic substitution |
| Bare vs coated/laminated | Different surface and process histories | Compatibility and completed-container validation |
18. Which standards apply to the intended use?
ANSI H35.1/H35.1M addresses alloy and temper designations; H35.2/H35.2M addresses dimensional tolerances, as identified by the Aluminum Association. ASTM B209/B209M covers aluminium sheet and plate, while B557 concerns tension testing of aluminium and magnesium products. ASTM E517 addresses sheet-metal plastic strain ratio. These are candidate references: the mill and laboratory must confirm scope, product applicability, edition and procedures. Public metadata were checked; licensed tables, numerical limits and full methods were not reviewed.
19. Which tests and quality controls support qualification?
Agree incoming chemical and mechanical evidence, dimensional sampling, surface inspection and traceability requirements. Add component-forming and coating tests selected by the can maker. Use agreed sheet-metal anisotropy testing only where relevant to the forming question; it does not replace the production trial. Trace coil, slit coil and trial components to a mill lot. Keep acceptance criteria and sampling frequency in the contract rather than relying on an unspecified industry-standard quality statement.
20. Which materials and equipment require compatibility checks?
Can stock must work with the lubricant, washer, pretreatment, coating or lamination route and forming equipment used by the plant. Define which surface is food-facing and which is decorated. Request the coating supplier's compatibility evidence for the actual metal condition and thermal cycle. A general printing or lacquer claim cannot establish adhesion after forming or product resistance after filling. Review changes jointly with material, equipment and coating specialists.
21. How should the material be stored and handled?
Protect coils from edge damage, surface contamination and condensation during storage and transfer. Use the mill's packing, handling and acclimatisation instructions and equipment rated for the coil mass. Coated stock may have storage and age restrictions different from bare stock; obtain the relevant written instructions. Preserve original identity after slitting and partial use. Do not assign a blanket shelf life to all can stock from the alloy number alone.
22. Which environmental and regulatory claims need verification?
Food-contact evaluation concerns the finished packaging system, including coatings and processing residues. FDA provides multiple food-contact authorisation routes; identify the basis applicable to the proposed use instead of claiming blanket approval. Health Canada describes no-objection letters as application-specific opinions that do not replace legal responsibilities. For recycling, retain composition and scrap-stream information and distinguish collection, recycled input and actual recovery. No migration conclusion, regulatory approval or environmental percentage is established by this guide.
23. What determines consumption and total production cost?
Measure cost per accepted body or end, not only coil price per tonne. Include blanking skeleton, trimming, rejected components, coating losses, downtime, tooling effects and scrap recovery terms. Compare thinner candidates at equivalent accepted output and finished-container performance. Reconcile theoretical metal use from geometry and density with weighed coil input and actual good parts. Commercial scrap credits need their own agreed classification, contamination rules and settlement basis.
24. Which industrial market requirements shape the purchase?
Relevant buyers include can makers, end manufacturers and converters whose specifications are connected to fillers and brand owners. Segment the inquiry by component and process rather than a generic beverage-packaging label. Food-can opportunities need a separate application brief. No customer relationship, manufacturing appointment, stock position or North American delivery capability is implied by listing a market segment here.
25. Which technology and market developments need current evidence?
Development questions include gauge reduction, coating or laminated surfaces and improved scrap utilisation. Novelis describes laminated can-end products, which are a specific technology example rather than evidence that every coating can be replaced. Evaluate any development against forming, opening, filling and product-protection requirements. This page contains no verified market-growth forecast, comparative lifecycle result or quantitative sustainability benefit.
26. What should North American industrial buyers verify?
For Canadian and US plants, agree metric or customary units, coil-handling limits, receiving inspection and documentation before shipment. Check the relevant food-contact basis for the destination and application. Qualification needs the local can-making and filling process, not a generic regional grade label. Confirm freight protection, claims handling and technical support without assuming that a distributor's location establishes mill equivalence or short lead times.
27. How should an international manufacturer be qualified?
Identify the producing mill, rolling and finishing locations and any coating or slitting subcontractors. Obtain demonstrated can-stock capability, lot records, retained samples and change-control arrangements. Verify who owns technical support for a forming failure and which evidence will be exchanged. A trial lot should follow an agreed qualification protocol. Inclusion of a producer reference in this page establishes no representation agreement, exclusive relationship or commercial endorsement by PAXOMER.
28. What information belongs in a technical purchasing checklist?
Submit component drawings, body/end/tab classification, proposed alloy-temper, gauge and width limits, coil format, surface and lubrication condition, coating route and expected processing conditions. Request composition and mechanical reports with test orientation and condition. Agree surface-defect definitions, forming-trial criteria, lot traceability, packing, lead time and change notification. Keep unresolved food-contact and container-performance questions open until the responsible specialists approve the complete system.
29. Which practical buyer questions should be resolved?
The answers below address purchasing distinctions and the evidence needed for qualification. They avoid universal gauge or temper recommendations because these depend on the approved can design and process.
30. Which vocabulary and related resources help specify the material?
D&I means drawing and ironing. Earing is variation in formed cup-rim height associated with directional behaviour. Temper describes a designated material condition; it must accompany the alloy. UBC means used beverage cans. Body stock, end stock and tab stock identify different component duties. Use the related laboratory-testing and procurement guides for organising evidence. References below were checked only for their listed scope; the trial and troubleshooting advice remains application-dependent editorial guidance.
Alloy/temper systems and 5182 lid example (opens in a new tab)
Drawing/ironing and protective coating explanation (opens in a new tab)
Coil delivery and finishing options; producer disclosure (opens in a new tab)
B209/B209M title; linked edition not asserted current (opens in a new tab)
B557 title; linked edition not asserted current (opens in a new tab)
E517 public title (opens in a new tab)
Laminated can-end example (opens in a new tab)
Food-contact regulatory inventory (opens in a new tab)
Canadian packaging and no-objection scope (opens in a new tab)
31. What should a technical enquiry include?
Send the component and material brief through the technical inquiry and identify whether the need is body, end or tab stock. PAXOMER supports Technical Supply, Manufacturer Development and North American Market Development. The immediate deliverable should be a documented candidate specification and controlled qualification plan. Availability, commercial terms, forming suitability and approval for the intended food-contact use require confirmation before repeat orders.
32. Control alloy, temper and forming evidence together
Body stock and end or tab stock perform different forming and service functions. Specify the exact alloy, temper, gauge tolerance, surface and lubrication condition for the intended part. Neither the word aluminium nor nominal thickness establishes interchangeability.
Drawing, ironing, necking and related forming operations impose local strain paths. Tool condition, lubrication, sheet anisotropy and surface defects can change yield. A successful flat tensile test is useful evidence but not proof of line acceptance. Compare coil identity and representative forming trials.
Coating and product-contact suitability concern the complete formed and coated construction, with the intended contents and processing. Confirm traceability, surface cleanliness and the responsible buyer’s qualification requirements. Do not infer an environmental or recycled-content claim without a documented boundary.
33. How should an application trial establish acceptance?
| Observation or comparison | Check | Decision boundary |
|---|---|---|
| Variable earing or trim loss | Directionality, temper, thickness and forming history | Assess representative coils under the same forming conditions |
| Surface scoring during forming | Tooling, lubrication, inclusions and surface finish | Trace defects by coil position and process stage |
| Coating failure after forming | Surface preparation, coating, forming strain and cure | Test the finished construction and intended contents |
34. Why should can-body, end and tab stock be specified separately?
These components have different forming and service duties. Compare alloy, temper, gauge, surface and directional forming evidence for the intended operation. Retain coil and production traceability when investigating splits, earing or surface defects. A metal chemistry match alone does not establish equivalent can-making behaviour or qualification of a coated finished container.
35. Frequently asked questions
Is can sheet the same as aluminium foil?
No. Specify the can component and forming duty; foil is a separate product and cannot be assumed interchangeable.
Which alloys are associated with can bodies and ends?
Producer references identify 3104/3004 body uses and 5182 end/tab uses. These examples do not approve a grade, temper or substitution for your design.
Can body stock replace end stock?
Only after a component-specific engineering evaluation. Forming and closure duties differ, so a matching alloy family or tensile value is insufficient.
Should an RFQ include temper?
Yes. Include the exact approved alloy-temper designation and the condition in which mechanical data are required.
What gauge should I buy?
Use the can maker’s approved component specification and tolerances. A universal gauge cannot be recommended without design and process data.
Why is earing important?
Cup-rim variation can affect trimming and material use. Agree how forming behaviour will be measured and validated on the proposed line.
Does a tensile report prove can-making performance?
No. Add dimensional, surface, forming, coating and finished-component evidence relevant to the process.
Are all can coatings interchangeable?
No. Review metal surface, application, cure, forming and intended product exposure for the exact coating system.
Does a no-objection letter approve every application?
No. Check composition and intended-use scope; such letters do not replace the responsible party’s obligations.
What makes a mill qualification useful?
Traceable trial material, agreed component acceptance tests, documented results and controlled repeat-supply specifications.
Are can body stock and end stock interchangeable?
No. They have different forming and functional requirements.
Does an alloy designation alone approve a coil?
No. Temper, gauge, surface condition and actual forming performance also need control.
Does matching aluminum alloy alone approve a can-stock substitution?
No. Temper, gauge, surface condition and component-specific forming evidence also matter.
36. References
Links inside sections are supplier or standards-body context for the statements they accompany.
Last revised 2026-10-27.
Related guides
- Industrial Laboratory Testing, Standards & Product Verification
- Industrial Material Specification & Supplier Qualification Checklist
Explore further
Product and material pages
Material card: Aluminum Can Sheet & Can Stock (listed in Products & Solutions).
Glossary terms
Can body stock · Can end stock · Drawing and ironing · Earing · Temper