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• 5052-H32 aluminum alloy or 6061-T6 aluminum alloy for your NEMA rated electrical encl

5052-H32 aluminum alloy or 6061-T6 aluminum alloy for your NEMA rated electrical encl

aluhm > 02-08-2018, 07:28 AM

The answer is quite simple – only 5052-H32 has the properties suitable for the fabrication of formed electrical enclosures.  Let’s compare the two alloys to see why.


[img=720x0]https://www.nemaenclosures.com/blog/wp-content/uploads/2016/03/NE-5052-6061-Comparison-Chart-021916.png[/img]
Chart 2: Comparison of 5052-H32 and 6061-T6 properties
5052-H32 is optimal for sheet metal work because of its ability to allow for a tight radius while bending.
5052-H32 contains 2.5% magnesium. It is one of the highest strength alloys of the non-heat treatable grades. Common uses for this alloy include the manufacturing of electrical enclosures, marine parts, home appliances, food equipment, fuel tanks, storm shutters, refrigerators, aircraft tube, and fences.
6061-T3 is not recommended for sheet metal work because it will crack on the outside radius once it passes its yield when being processed on a brake press, for example.
6061-T6 is the most commonly used aluminum alloys. The main alloy ingredients are magnesium and silicon.  Common uses for this alloy are in the manufacturing of fishing reels, truck frames, structural components, machine parts, aircraft and aerospace components, marine fittings, camera lenses, transport, valves, and couplings.
Both alloys can undergo the anodizing process to increase corrosion resistance and enable dying (coloring). The anodic layer is non-conductive.
5052 is generally less expensive than 6061.
In summary, certain aluminum alloys (especially 5052-H32) are excellent materials for NEMA rated electrical enclosures – especially if your enclosure is going to be used outdoors and/or heat dissipation is a consideration.