The 3003 aluminum perforated sheet with staggered perforations has an H14 temper and an unpolished (mill) surface. The 3003 aluminum alloy provides good strength and corrosion resistance, and is lighter weight than steel, copper, and brass. The sheet has an H14 temper, meaning it has been strain hardened to a 1/2 hard temper. The perforations are staggered in parallel diagonal rows.
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