Both are chuck primal steaks; flat iron is from the top blade (infraspinatus) while aguja norteña is from the chuck eye roll
Translation takeaway
These are related cuts, but not perfect swaps. Use the table below to judge how close your local option is before buying.
Keep Aguja norteña and Flat iron steak together in your notebook.
Names by country
| Country | Aguja norteña | Flat iron steak |
|---|---|---|
| 🇺🇸United States | Chuck eye steak | Flat iron steak |
| 🇬🇧United Kingdom | Chuck eye steak | Flat iron steak |
| 🇫🇷France | Basses côtes | — |
| 🇪🇸Spain | Aguja | — |
| 🇦🇷Argentina | Aguja | Marucha |
| 🇲🇽Mexico | Aguja norteña | — |
| 🇵🇹Portugal | Acém | — |
| 🇧🇷Brazil | Acém | — |
| 🇮🇹Italy | Reale | — |
| 🇩🇪Germany | Hochrippenkern | Flat-Iron-Steak |