Aluminum beverage cans dominate carbonated soft drinks, beer, energy drinks, and the fast-growing canned cocktail and sparkling water categories thanks to infinite recyclability, fast filling speeds, and strong shelf appeal. But “aluminum can” isn’t one spec — body alloy, gauge, end diameter, coating chemistry, and tolerance all vary by format, and getting any one of them wrong triggers costly requalification cycles with your filler.
This guide lays out the full aluminum can specification sheet — sizes, alloys, wall thickness, end codes, coatings, and manufacturing tolerances — so brand buyers can spec cans correctly the first time and speak the same language as their can supplier and co-packer.
Quick Answer
Standard aluminum beverage cans use 3004 or 3104 aluminum alloy (temper H19) for the body, with wall gauge around 0.0097–0.013 in (0.25–0.33 mm), and 5182 alloy for the easy-open end. A standard 12 oz (355 ml) can measures roughly 2.6 in (66 mm) in diameter and 4.8 in (122 mm) tall, weighs about 13 grams, and typically pairs with a 202-diameter SOT (stay-on-tab) end. Manufacturing tolerances run under 1 mm on height and 0.5 mm on diameter to stay compatible with high-speed filling lines.
Standard Sizes and Body Dimensions
In North America the workhorse formats are the 12 oz (355 ml) standard can, the 16 oz (473 ml) tallboy, and the slim/sleek 8.2–8.4 oz can used heavily in energy drinks and sparkling water. A standard 12 oz can is about 4.8 in (122 mm) tall and 2.6 in (66 mm) in diameter. The 16 oz tallboy stretches to roughly 6.2 in (157 mm) tall while keeping the same 2.6 in diameter, so it runs on the same filling and seaming equipment. Slim/sleek cans hold the same volume in a taller, narrower body — around 2.1–2.24 in (53–57 mm) diameter and 5.3–6.1 in (134–156 mm) tall, depending on the exact sleek variant. Europe’s primary formats are 330 ml and 500 ml, sized to metric conventions rather than the US ounce-based system.
Diameter changes have real production consequences: switching between a standard 12 oz body and a sleek format usually means changing seamer tooling and can be a bigger line-compatibility question than the label copy suggests, so confirm diameter compatibility with your filler before finalizing a can spec.
Alloy and Gauge Specifications
Can bodies are drawn and ironed from 3004 or 3104 aluminum-manganese alloy coil in H19 temper, chosen for its balance of deep-drawability and strength after work-hardening. Body wall gauge on a finished can generally falls in the 0.0097–0.013 in (roughly 0.25–0.33 mm) range on the sidewall, with the base — which bears internal pressure from carbonation — formed thicker for structural integrity. Ends use a different alloy, 5182, which has higher magnesium content and greater strength, needed because the end has to score and open cleanly under a rivet-mounted tab without failing during shipping or line handling.
Coil width and gauge are specified precisely by can makers (Ball, Crown, Ardagh, Canpack) to hit target can weight without compromising burst strength or denting resistance — this is the lever behind the industry’s decades-long light-weighting push.
End Diameters and Tab Configurations
Can ends are specified by a three-digit diameter code, where the digits represent inches and sixteenths — a “202” end is 2 2/16 in (about 54 mm), a “206” end is 2 6/16 in (about 60 mm). Most standard 12 oz and 16 oz cans in North America have shifted to the smaller 202 end as part of industry-wide light-weighting, replacing the larger legacy 206 and 209 ends that were standard decades ago — a smaller end uses less of the more expensive 5182 alloy per can.
The universal opening mechanism is the SOT (stay-on-tab), which stays attached to the can after opening to reduce litter. Specialty beverage categories use variant ends: nitrogenated beers commonly use widget ends that release a nitrogen-charged capsule on opening to build a creamy head, and some resealable or full-aperture formats use alternative end geometries. Matching end diameter to body diameter and to your filler’s seamer heads is a line-compatibility check, not just a spec-sheet detail — mismatches are one of the most common causes of delayed launches.
Manufacturing Tolerances and Line Compatibility
Can bodies and ends are held to tight dimensional tolerances — commonly under about 1 mm variation in can height and around 0.5 mm in diameter — because modern beverage lines run at very high speed and have little margin for out-of-spec cans jamming a filler or seamer. These tolerances, along with seam tightness and overlap requirements for a hermetic double seam, are documented by the Can Manufacturers Institute, the US trade body for the can-making industry.
For brand buyers, the practical takeaway is to request a can maker’s certificate of conformance against these tolerances before a first production run, not just a technical drawing — it’s the difference between a smooth co-pack trial and a line stoppage.
Internal Coatings and BPA Status
Aluminum cans need an internal coating to prevent the metal from corroding against acidic or carbonated beverages and to stop the product from picking up a metallic off-flavor. Legacy coatings were BPA-based epoxies; consumer concern and California’s Prop 65 listing pushed the industry toward BPA-NI (non-intent) chemistries — polyester, acrylic, or non-BPA epoxy — which major suppliers including Crown Holdings, Ball, and Ardagh now offer as standard.
Regulatory context matters here for sourcing: the FDA’s current position is that BPA remains safe at approved use levels in US food and beverage packaging (with the exception of infant formula packaging, restricted since 2013), while the European Commission adopted a ban on BPA in food contact materials in December 2024. Brands selling into the EU or building a health-forward positioning should specify BPA-NI coatings explicitly in their can spec, even though it isn’t yet a blanket US legal requirement.
Printing Methods
Standard can decoration uses dry offset lithography directly on the can-making line, supporting up to six-color graphics at full production speed with no added per-unit cost beyond plate setup. Digital can printing (from vendors like Tonejet and INX International) trades some cost-per-can for zero plate charges, short-run flexibility, and variable data — useful for craft and limited-edition SKUs. Shrink sleeves, applied post-fill, allow photographic 360-degree graphics and are common on premium beer, RTD cocktails, and craft beverages, typically adding a few cents per can but eliminating plate costs; they can also complicate aluminum recycling if not removed before recovery.
Sustainability and Recycling Specs
Aluminum remains the most-recycled beverage container material in the US, but the actual consumer recycling rate has fallen in recent years: the Aluminum Association and Can Manufacturers Institute reported a 43% US aluminum can recycling rate for 2023, down from a roughly 52% average since tracking began in 1990 — still ahead of glass (about 40%) and PET plastic (about 20%), but below the industry’s stated targets. Within the closed-loop system, though, aluminum performs very well: reported can-to-can circularity is around 97%, meaning nearly all cans that do get collected for recycling become new cans rather than being downcycled.
For brand buyers building sustainability claims, ask suppliers for recycled-content percentage by weight and, where available, ASI (Aluminum Stewardship Initiative) chain-of-custody documentation for primary aluminum — both are becoming standard diligence items alongside coating and gauge specs.
aluminum can specifications FAQs
What are the standard aluminum beverage can dimensions?
A standard 12 oz (355 ml) can is about 2.6 in (66 mm) in diameter and 4.8 in (122 mm) tall. A 16 oz (473 ml) tallboy is the same 2.6 in diameter but about 6.2 in (157 mm) tall. Slim/sleek cans run 2.1–2.24 in (53–57 mm) diameter and 5.3–6.1 in (134–156 mm) tall.
What alloy is used for aluminum can bodies and ends?
Can bodies use 3004 or 3104 aluminum alloy in H19 temper. Can ends use 5182 alloy, which has higher strength for scoring and opening under a stay-on-tab.
What is the wall thickness (gauge) of an aluminum can?
Body wall gauge is generally 0.0097–0.013 in (about 0.25–0.33 mm), with the base formed thicker to withstand internal carbonation pressure.
What does a can end code like 202 or 206 mean?
The three-digit code gives the end diameter in inches and sixteenths — 202 is 2 2/16 in (about 54 mm), 206 is 2 6/16 in (about 60 mm). Most standard 12 oz and 16 oz cans now use the smaller, lighter 202 end.
How much does a standard aluminum can weigh?
A modern 12 oz can weighs about 13 grams, roughly a third lighter than cans from the 1970s, thanks to decades of alloy and gauge light-weighting.
Are aluminum cans BPA-free?
Most major can suppliers now offer BPA-NI (non-intent) internal coatings using polyester, acrylic, or non-BPA epoxy chemistries. The FDA still considers BPA safe in approved US food packaging uses, but the EU banned BPA in food contact materials in December 2024, so BPA-NI is the safer default to specify for any brand selling internationally.
What is the current aluminum can recycling rate?
The US consumer recycling rate for aluminum cans was 43% in 2023 per the Aluminum Association and Can Manufacturers Institute — still higher than glass or PET plastic, but down from a historical average near 52%. Cans that are recycled have a very high can-to-can circularity rate, around 97%.
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