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6061 is a precipitation-hardened aluminum alloy, containing magnesium and silicon as its major alloying elements. Originally called "Alloy 61S", it was developed in 1935.It has good mechanical properties, exhibits good weldability, and is very commonly extruded (second in popularity only to 6063).It is one of the most common alloys of aluminum for general-purpose use.
It is commonly available in pre-tempered grades such as 6061-O (annealed), tempered grades such as 6061-T6 (solutionized and artificially aged) and 6061-T651 (solutionized, stress-relieved stretched and artificially aged).
The applications 6061 aluminum alloys are frequently used for include base plates, truck components, marine fittings, marine components, marine hardware, electrical connectors, electrical fittings and camera lens mounts. This is only a few of the wide array of applications this alloy is used for. It also has the capability to be used for heavy duty structures that need corrosion resistance and good weight-to-strength ratio.
6061-T6 is used for:
•bicycle frames and components.
•many fly fishing reels.
•the Pioneer plaque was made of this alloy.
•the secondary chambers and baffle systems in firearm sound suppressors (primarily pistol suppressors for reduced weight and improved mechanical functionality), while the primary expansion chambers •usually require 17-4PH or 303 stainless steel or titanium.
•The upper and lower receivers of many non mil-spec AR-15 rifle variants.
•Many aluminum docks and gangways are constructed with 6061-T6 extrusions, and welded into place.
•Material used in some ultra-high vacuum (UHV) chambers
•Many parts for remote controlled model aircraft, notably helicopter rotor components.
The alloy composition of 6061 is:
♦Silicon minimum 0.4%, maximum 0.8% by weight
♦Iron no minimum, maximum 0.7%
♦Copper minimum 0.15%, maximum 0.4%
♦Manganese no minimum, maximum 0.15%
♦Magnesium minimum 0.8%, maximum 1.2%
♦Chromium minimum 0.04%, maximum 0.35%
♦Zinc no minimum, maximum 0.25%
♦Titanium no minimum, maximum 0.15%
♦Other elements no more than 0.05% each, 0.15% total
♦Remainder aluminum (95.85–98.56%)
The tread plrate patten includes:
Small five bar,big five bars,pointer,lentils,etc.
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