If your new 355ml (12oz) standard can supplier is delivering cans that jam your filler or leak at the seamer, the problem is usually a small dimensional drift: neck diameter, flange width, or total height. At 60,000+ cans per hour, a 0.1mm deviation can shut the line down and leave you with customs delays and rework costs.
At Alucan we hold 355ml standard cans to the global 202 neck spec, with tolerances tight enough to drop straight onto your existing seamer chucks and filling valves.
A 355ml (12oz) Standard aluminum can is 122.2 ± 0.2 mm tall, 66.04 ± 0.10 mm in diameter, with a 202 neck (52.30 mm). Body alloy is 3104-H19; pressure rating is ≥ 6.1 bar (90 PSI).
1. 355ml standard can specifications
These are the dimensions and tolerances we control on every 355ml standard can order.
| Parameter | Metric | Why it matters |
|---|---|---|
| Nominal volume | 355 ml / 12 oz | North American retail standard |
| Total height | 122.20 mm ± 0.20 mm | Sets filler valve and carton nesting |
| Body diameter | 66.04 mm ± 0.10 mm | Sets guide rail width and puck design |
| Neck diameter | 52.30 mm (202 end) | Must match seamer chuck and rolls |
| Flange width | 2.10 mm ± 0.15 mm | Controls double-seam integrity |
| Dome depth | 24.13 mm | Affects conveyor transfer stability |
| Internal pressure | ≥ 6.1 bar (90 PSI) | Keeps dome from reversing under pasteurization |
2. Why 3104-H19 alloy matters for 355ml standard cans
The body of a 355ml standard can starts as a 3104-H19 aluminum coil. The "3104" designation controls the manganese-magnesium balance, and the "H19" temper means the metal is strain-hardened to a high tensile state after the draw-and-ironing (D&I) process. That combination gives the can wall its strength without adding weight.
After forming, the mid-wall gauge on our 355ml Standard cans sits between 0.097 mm and 0.102 mm. The dome is slightly thicker to handle internal pressure, while the sidewall is thinned to save aluminum. If the H19 temper is too soft, the dome reverses under carbonation. If it is too hard, the wall cracks during ironing. We test every coil lot with tensile samples before it enters the cupper.
When you source 355ml cans across borders, ask your supplier for the coil certificate. It should list alloy grade, temper, tensile strength, and elongation. We keep these records matched to production batch numbers so any issue can be traced back to the exact coil.
3. Avoiding micro-leaks and seaming failure
When you import 355ml standard cans into North America, Europe, or Russia, the cans have to fit your existing seaming chucks and rolls. Angelus or Ferrum equipment is unforgiving: if the neck or flange is out of spec, you get false seams, droops, or leaks.
Flange control
A small flange variance causes false seams or droops. We run online vision inspection on every batch and hold flange width to ±0.15 mm.
Alloy and pressure limits
We use 3104-H19 for the body. It has enough tensile strength to keep carbonated or nitrogen-dosed cans from buckling during pasteurization and long-haul sea freight.
Common seam defects and root causes
Most line failures we hear about trace back to one of four issues:
- False seams: usually from worn seamer rolls or a chuck that does not match the 202 neck profile.
- Droops and wrinkles: often caused by flange variance outside ±0.15 mm or incorrect first-operation roll pressure.
- Cutovers: happen when the end countersink is too deep for the can flange, scoring the metal during seaming.
- Buckle after pasteurization: points to insufficient internal pressure rating or a dome geometry that does not match your product's CO2 load.
We run online vision inspection on every batch and hold flange width to ±0.15 mm. If you send us your seamer chuck drawing, we can cross-check it against our neck profile before the first sample ships.
Coating note: We match the internal lining to your market and product. BPANI is available for North America and the EU; Epoxy-Phenolic is used where bisphenol restrictions do not apply. Both protect acidic soft drinks and craft beers for 12–24 months.
4. What drinks fit the 355ml standard can?
The 355ml can is the North American retail default. The 66.04 mm diameter gives plenty of print area and fits standard six-pack rings, 12-pack trays, and 24-pack master cartons. Common applications:
- Carbonated soft drinks: The ≥6.1 bar rating handles up to 4.0 v/v CO2 without dome reversal in pasteurization or summer heat.
- Craft beer and hard seltzer: The 202 neck takes CDL and B64 ends, which many small breweries prefer.
- Sparkling water and functional drinks: BPANI liners keep flavor neutral and meet FDA / EU food-contact rules.
- Ready-to-drink cocktails: The 12 oz volume matches US serving sizes and avoids custom tooling.
5. Filling line compatibility and changeover
The 355ml Standard can is designed to drop onto existing 202 seaming and filling tooling. Because the body diameter is 66.04 mm and the neck is 52.30 mm, it shares rails and starwheels with 330ml Standard, 440ml Standard, and 500ml Standard formats. That reduces spare-parts inventory if you run multiple SKUs.
Changeover from a 330ml or 500ml Standard to a 355ml Standard typically takes 15 to 30 minutes on an Angelus, Ferrum, or KHS seamer. You only need to adjust filler valve stroke and seamer head height. The starwheel and infeed guide rails stay the same. If you are switching from a Sleek or Slim profile, you will need to swap the guide rails and centering bells because the body diameter changes from 57.40 mm or 53.00 mm back to 66.04 mm.
Before committing to a supplier, ask for a dimensional report that covers the full tolerance band, not just the nominal values. Cans that sit at the upper end of the height tolerance can interfere with pasteurizer rails, while cans at the lower end may not seal cleanly if your seamer is set to the mid-range.
6. Quality control checks we run
Before we release a lot, we verify the dimensions against your seamer and filler requirements:
| Check | Method | Pass criteria |
|---|---|---|
| Body height | Laser micrometer, 8-point sampling | 122.20 mm ± 0.20 mm |
| Body diameter | Vision system, inline | 66.04 mm ± 0.10 mm |
| Neck diameter | Go/no-go gauge + optical scan | 52.30 mm (202) |
| Flange width | Online vision inspection | 2.10 mm ± 0.15 mm |
| Internal pressure | Hydrostatic burst test, AQL | ≥ 6.1 bar |
| Coating integrity | Copper sulfate porosity test | Zero pinholes in critical zones |
| Alloy/temper | Coil certificate + tensile test | 3104-H19, matched to batch |
| Wall gauge | Eddy-current micrometer | 0.097–0.102 mm mid-wall |
7. Frequently asked questions
Will Alucan's 355ml standard cans fit my 202 SOT / CDL seaming chucks?
Yes. The neck is 52.30 mm to the 202 spec, so our cans run on standard 202 SOT, B64, and CDL ends without line modification.
What quality documents come with each shipment?
We supply dimensional certificates, coating compliance reports, and pressure-test records with each lot. If you need third-party inspection or FDA/EU migration reports, ask when you request the quote.
Can I run 355ml Standard cans on the same line as 330ml or 500ml Standard?
Yes. The 66.04 mm body diameter and 202 neck are shared across 330ml, 355ml, 440ml, and 500ml Standard formats. You only need to adjust filler valve height and seamer head clearance. Guide rails and starwheels usually stay the same.
What causes dome reversal after pasteurization?
Dome reversal usually means the internal pressure rating of the can is too close to the actual pressure your product generates during pasteurization. It can also come from a dome profile that is too shallow or from inconsistent alloy temper. We specify ≥6.1 bar as a safety margin above typical carbonated beverage loads.
8. Request a technical sample kit
If you are not sure whether our 355ml profile matches your filler or seamer, contact Christine Wong. She will send full technical drawings and a sample kit with the coating option you need for on-machine trials.
Need 355ml standard can samples?
Ask Christine Wong for technical drawings, current lead times, and a sample kit with BPANI or Epoxy-Phenolic coating for your line trials.
Request samples →