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Among the many temper variants of 6061 aluminum, T651 holds a special point in precision machining and structural applications. Understanding what sets 6061-T651 apart from monetary standard T6 stuff is requirement for engineers and procural professionals who need honest, warp-free aluminum scale for needy applications.
What Does T651 Mean?
The T651 identification indicates that the aluminum plate has undergone solution heat treatment, extinction, and semisynthetic ripening(as with monetary standard T6), but with one critical additional step: try relieving by limited stretch. This stretching work on typically 1 to 3 pct permanent set relieves the intramural remainder stresses that train during quenching.
The lead is a scale that corpse dimensionally stalls during and after machining. When you simple machine a monetary standard T6 scale, res stresses can cause the part to warp as stuff is removed. With 6061-T651 6061 T6 Aluminum plate, this warping trend is greatly reduced, making it the desirable selection for preciseness components such as mold bases, jigs, fixtures, and tooling plates.
Mechanical Properties of 6061-T651
6061-T651 atomic number 13 delivers the full natural philosophy prop visibility of the T6 temper, including tensile strength of more or less 310 MPa, succumb effectiveness of 276 MPa, elongation around 10-12, and Brinell unfeelingness of roughly 95 HB. These properties remain homogenous throughout the scale heaviness due to the try succour handling.
For aerospace-grade applications, buyers should confirm that their 6061-T651 aluminum supplier can ply stuff secure to ASTM B209 or AMS 2770 standards, which rule the heat handling processes for aerospace atomic number 13.
Common Applications
Precision machined components, CNC machined parts, mold bases for injection molding and die casting, biology aircraft components, tooling and fixturing, technological instrument housings, and hydraulic multiply blocks all represent normal applications for 6061-T651 plate.
In the semiconductor device and industries, 6061-T651 is often specified for vacuum components, wafer treatment equipment, and precision brackets applications where dimensional stableness is as world-shattering as effectiveness.
Sourcing 6061-T651 from China
China produces vauntingly volumes of 6061-T651 stress-relieved aluminum plate for both house servant and markets. When purchasing, always bespeak mill test certificates positive debase writing, physical science properties, and check that the stuff has been strain alleviated per the T651 stipulation.
Custom thicknesses, widths, and lengths are in the main available, and honourable manufacturers can supply stuff cut to size with sawed or polished surfaces depending on your application requirements.