Common materials used for machined parts-1

Aluminum: As with all metals, a broad assortment of aluminum alloys exists, but the most common are 6061-T6 (considered a general-purpose alloy) or 7075-T6 (a favorite of the aerospace industry). Both are easy to machine, corrosion resistant, and exhibit high strength-to-weight ratios. Keep in mind that Protolabs offers traceable UT-tested aluminum for milled parts. It is identical to standard aluminum 6061-T6 but is ultrasonic tested and guaranteed to conform to ASTM B 594 and AMS- STD-2154 specifications. Aluminum is suitable for airplane parts, computer components, cookware, architectural components, and more (and in case you’re wondering, the T-6 refers to aluminum’s temper, or the way in which it was processed at the mill).