Spindle & Press

1/16" Aluminum Sheet 12" x 24" 3003 Alloy: Is It the Right Raw Metal Stock?

This 12 x 24-inch, 1/16-inch 3003 aluminum sheet offers corrosion resistance and a workable H14 temper, but its mill finish and +/-0.125-inch tolerances need a plan.

Last updated Aug 17, 2026

Choosing a new aluminum stock for a fabrication project means looking past the thickness and length. You also need to know how the alloy and temper behave, and how much tolerance you have to work within. This 1/16" thick aluminum plate sheet, a 3003 alloy in a 12" x 24" size with a mill finish, is listed at USD 29.58 and is worth evaluating for small metal parts.

Quick verdict

This sheet is a solid choice for corrosion-resistant components that need moderate strength. The 3003 alloy is listed as corrosion resistant, and the H14 temper supports forming while holding shape. The stated typical yield strength of 21,000 psi and typical tensile strength of 22,000 psi give you a useful baseline for non-critical brackets and panels.

Who it suits

It suits hobbyists and metalworkers who need a blank small enough to fit a benchtop setup. The 12" x 24" footprint is convenient, and the sheet is new and made in the United States. If you are comfortable placing your own layout over a sheared edge, this blank works well.

What stands out from the listed details

The thickness tolerance of +/-0.005 inch is a meaningful detail for consistent bend lines and machining. The listed temperature range spans -300 to 300 degrees F, which covers most ordinary shop use without issue. The H14 temper also gives the material a workable stiffness that forms well while keeping its shape.

Meaningful trade-offs

The mill finish means the surface is raw and unpolished; if you need a brushed or bright look, you'll have to do the finishing. The width and length tolerance of +/-0.125 inch is plenty of variation to account for, so plan to trim or locate from a measurable reference point. These trade-offs make it a practical raw material rather than a finished panel.

Bottom line

This 3003 aluminum sheet is a dependable, corrosion-resistant 1/16" stock for a wide range of small fabrication jobs, as long as you accept the mill finish and plan for the size tolerance.

1/16" Thick Aluminum Plate Sheet 12" x 24" 3003 Alloy Stock Mill Finish NEW

1/16" Thick Aluminum Plate Sheet 12" x 24" 3003 Alloy Stock Mill Finish NEW

This new sheet is listed at USD 29.58 and made in the United States. A good reason to choose it is the 3003 alloy's excellent corrosion resistance, which is helpful for parts that may see moisture. The main limitation is the +/-0.125 inch width and length tolerance, so give yourself extra material when laying out a part.

Products in this article
1/16" Thick Aluminum Plate Sheet 12" x 24" 3003 Alloy Stock Mill Finish NEWUSD 29.58View on eBay
1/16" Thick Aluminum Plate Sheet 12" x 24" 3003 Alloy Stock Mill Finish NEWUSD 29.58View on eBay

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