6061 vs 7075 receiver question. First off is that the tensile strength of 7075-T6 is nearly double that of 6061-T6. Choose from thousands of metal types, shapes and grades and get it today. COVID-19 Response: Source manufacturers & distributors providing COVID-19 medical supplies Magnesium is added to aluminum to increase its strength. Although 7075 aluminum does offer some additional strength over its 6061 counterpart, this does not mean 6061 is inadequate for most AR-15 applications. Below we cover the properties and uses for both 7075 and 7050 aluminum. The properties of 6061 aluminum include corrosion resistance, weld-ability, medium to high strength, and good work-ability. Aluminum alloys are metals made primarily of aluminum with added alloying elements to increase the base aluminum’s capabilities. 6061 was first introduced in 1935 and was one of the first commercially available alloys. This is a result of the chemical composition of both alloys. This alloy primarily consists of aluminum, magnesium and silicon, and it can be heated and liquid quenched to render it stronger and more durable. The lower tensile strength means that 6061 is easier to form than 7075. Its moderately high strength and its fair resistance to corrosion allow type 6061 aluminum to be a great general-purpose alloy, with many applications in structural materials, welded assemblies, piping, fasteners, electronic parts, and many more. Viewed 3k times 2. Company. Or maybe you're just looking to grow your metal knowledge. STRENGTH Some AR-15 aficionados would declare 7075 to be superior when choosing between 6061 vs 7075 aluminum. The properties of 6061 aluminum include corrosion resistance, weldability, medium to high strength, and good workability. We are metal experts and have been providing quality customer service and products since 1985. Post #1688658 ; Results 1 to 9 of 9 Thread: Machineability 6061-T651 VS 7075-T651. Since 6061 aluminum’s thermal conductivity is generally higher, it is better suited for heat-dissipative applications (such as heat sinks and heat exchangers) than 7075 aluminum is, though 7075 aluminum’s thermal conductivity is also quite good. For reference, the Brinell hardness for glass (a very hard material) is 1550, while lead (a soft material) has a Brinell hardness of 5. Overview. With bike parts, some riders prefer the increased strength that comes with the 7075 aluminum alloy. Our hot rolled and cold rolled steel is available in a wide range of shapes including: bars, tubes, sheets and plates. The 7075 aluminum alloy, while not being entirely different from 6061 aluminum alloy, is both more expensive and more prone to corrosion than 6061 aluminum alloy. 6061 vs 7075 Aluminum: Corrosion Resistance Comparison When we compare the resistance of 6061 and 7075, we discovered that the aluminum alloy grade 6061 has more resistance to corrosion than 7075. Both 6061 and 7075 aluminum have a … The lower hardness allows it to be machined more easily than 7075. 6061 aluminum has good formability, excelling in extrusion projects, and is easily joined via welding. HPM typically stocks on the plus side, but always Aluminum 6061. California Do Not Track Notice. Captdave. The differences in properties, strengths, and uses will investigated, so as to show where each of these alloys excels, as well as where they should not be specified. 7075 also has greater additions of copper in its chemical makeup. It looks like you are visiting from the UK. Its nominal chemical breakdown is 90.0% Al, 5.6% Zn, 2.5%Mg, 0.23%Cr, and 1.6% Cu. Meaning that while 6061 alloys provide superior welding abilities and workability, it doesnt boast the same high strength and stress resistance as 7075.