Aluminum for automotive suppliers sourcing from Mexico
We make coil, sheet and blanks for stampers and body builders that supply parts to the automotive chain. With an ISO 9001 quality system, a mill test report per lot and origin documentation for USMCA content rules and Section 232 declarations.
What an automotive buyer asks for
A stamper needs three things from aluminum: dimensional consistency so the die isn't reset every lot, mechanical properties that pass PPAP, and origin documentation so the part counts as regional content when the vehicle crosses into the United States.
Almexa direct-chill casts and hot rolls, which gives homogeneous mechanical properties in the 1000, 3000 and 5000 series. Heat-treatable outer-body alloys (6000 series) are outside our scope, and we say so before you ask.
Products for automotive
- Aluminum coil 0.0177 to 0.1575 in · 6.30 to 48 in · 1000, 3000 and 5000 series
- Aluminum sheet and plate Cut to size · 0.0197 to 0.1575 in · plate 0.157 to 13 in
- Aluminum blanks Custom shape · 0.0177 to 0.1575 in · 1000, 3000 and 5000 series
Common alloys
| Alloy | Use |
|---|---|
| 1100 O / H14 | Heat shields, insulation, drawn parts |
| 3003 / 3105 H14 | Stamped parts, brackets, transport bodies |
| 5052 / 5754 (up to 36 in) | Boxes, structures and parts that need strength |
Origin, Section 232 and USMCA
Since 2025 the United States applies the Section 232 tariff to aluminum and requires importers to declare the country where the metal was smelted and the country where it was cast. Almexa's aluminum is cast and rolled in Mexico; we ship a mill test report per lot and the origin documentation your customs broker needs. Details are on the aluminum origin page.
Frequently asked questions
Is Almexa IATF 16949 certified?
Not currently. Almexa held IATF 16949 certification and chose not to renew it because it was not essential. We still follow its guidelines, comply strictly with ISO 9001, supply Tier 1 companies and are audited by them regularly. If your program has specific automotive requirements (PPAP, incoming inspection, process audit), list them at quotation and we will tell you which ones we cover.
Which aluminum alloy is used for automotive stamping?
For interior parts and brackets, 3003 or 3105 in H14 temper; for heat shields and insulation, 1100; for structural parts that need more strength, the 5000 series, such as 5052 and 5754, both made by Almexa. Outer-body 6000-series alloys are not made at Almexa.
Does Almexa aluminum count as USMCA regional content?
Yes. Under the current USMCA rules of origin, Almexa's products meet the origin content the agreement requires: the metal is cast and rolled in Mexico. Almexa supplies the mill test report and origin documentation for each lot; your trade compliance team confirms how your finished part qualifies.
Send your drawing or material standard. We tell you what we make and when.
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