## Common ground
All options refer to metal cans used for preserving food.
## Options at a glance
**7310.2X – Made of iron or steel**
- **Defining trait:** Constructed from iron or steel, often with a protective coating (like tin) to prevent corrosion.
- **Typical examples:** Tin-plated steel cans for beans, soups, and vegetables.
- **Best fit when:** The can is thick, rigid, and commonly used for long-term food storage in bulk.
**7612.90 – Made of aluminium**
- **Defining trait:** Made from lightweight aluminium, typically without a coating (though some have internal linings).
- **Typical examples:** Beverage cans, small food containers like tuna or ready meals.
- **Best fit when:** The can is light, easily recyclable, and used for single-serve or portable food items.
## Key differences
| Feature | 7310.2X (Iron/Steel) | 7612.90 (Aluminium) |
|------------------|------------------------|-----------------------|
| Material density | High (heavy) | Low (lightweight) |
| Corrosion resistance | Requires coating | Naturally resistant |
| Common use | Bulk, long-term storage| Single-serve, convenience |
## How to choose
- Is the can heavy and rigid? → 7310.2X
- Is it lightweight and often used for single servings? → 7612.90
## Overlaps & pitfalls
Some cans (e.g., aluminum with a tin coating) may blur lines, but the primary material determines classification. If unsure, prioritize the main structural material: steel/iron vs. aluminum. No option is vague—both are clearly defined by material type