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4032 aluminum test specimen with polished finish and mounting hole

4032 Aluminum Test Panels

Metaspec makes test panels, specimens, and coupons from 4032 aluminum. This alloy is used in the automotive industry for racing engines, pistons, and other parts that require better performance at higher temperatures. 


These test panels and specimens are usually machined from plate or bar material. Customized test panels are available on request.

  • Test panels can be machined from plate or bar material. A wide range of sizes and thickness are available, including panels as thin as 0.032 inch. This process leaves some visible machining marks on the surface instead of an ‘as rolled’ surface finish.

    An additional polishing process can smooth out the machining marks on the faces of the test panel and is available upon request. Machined test panels are interleaved or packed individually to prevent surface scratches.

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