{"id":2044,"date":"2019-02-24T06:53:56","date_gmt":"2019-02-24T06:53:56","guid":{"rendered":"https:\/\/www.fonnovaluminium.com\/?p=2044"},"modified":"2024-12-17T02:02:51","modified_gmt":"2024-12-17T02:02:51","slug":"7075t6-%d0%bf%d1%80%d0%be%d1%82%d0%b8%d0%b2-6061t6","status":"publish","type":"post","link":"https:\/\/www.fonnovaluminium.com\/ru\/7075t6-vs-6061t6.html","title":{"rendered":"\u0410\u043b\u044e\u043c\u0438\u043d\u0438\u0439 7075 \u043f\u0440\u043e\u0442\u0438\u0432 \u0430\u043b\u044e\u043c\u0438\u043d\u0438\u044f 6061"},"content":{"rendered":"

The properties and capabilities of aluminum are relevant for manufacturing applications in the world. Creating aluminum alloys by mixing with other metals makes the metal even more versatile. Depending on the alloying component added to aluminum, the characteristics of the alloy can vary significantly.<\/p>\n

Among the most popular alloys of aluminum are aluminum 7075 and aluminum 6061. Are you wondering which of the two is more suitable for your upcoming project?<\/p>\n

Some industrial plant clients often ask questions about the selection of 7075 aluminum<\/a>\u00a0and 6061 aluminum<\/a>\u00a0for their project. FONNOV ALUMINIUM now introduces the comparison of the 7075 and 6061 that customers often mention, hoping to help your industrial design for production. We discuss the two alloys, focusing on the main properties, differences between the alloys, chemical composition, and mechanical properties. We also explain why using aluminum extrusions from FONNOV ALUMINIUM is worthwhile.<\/p>\n<\/div><\/div><\/div><\/div><\/div>

A Review of Aluminum 6061<\/strong><\/h2>\n<\/div>

If you were to compile the strongest and most versatile aluminum alloys, aluminum 6061 would make the list. Among the heat-treatable alloys, aluminum 6061 is one of the most dynamic and affordable options.<\/p>\n

With magnesium and silicon as the main elements, this alloy is not only heat-treatable but also easy to anodize. You can also harden it after the forming process.<\/p>\n

Aluminum 6061 is a common feature in construction and architectural projects. Specific applications of the alloy include bridge parts, electronic components, structural moldings, and piping. These applications suit the alloy for its high strength-to-weight ratio, corrosion resistance, and surface quality.<\/p>\n<\/div>

\"6061T6<\/span><\/div>

6061 aluminum alloy has several popular tempers as the table below shows:<\/p>\n<\/div>\n

\n\n\n\n\n\n\n
Temper<\/strong><\/th>\nDescription<\/strong><\/th>\n<\/tr>\n<\/thead>\n
6061-T4<\/td>\nHeat-treated and aged naturally<\/td>\n<\/tr>\n
6061-T5<\/td>\nCooled and aged artificially<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div><\/div><\/div><\/div>

A Review of Aluminum 7075<\/strong><\/h2>\n<\/div>

Aluminum 7075 is popular for its high fatigue strength. The main alloying element in this alloy is zinc, which gives 7075 aluminum strength which is rare in other alloys.<\/p>\n

The alloy has fair corrosion resistance and machinability, but its workability and welding capability are poor. It is also sometimes expensive in particular projects. A point worth noting is that it is possible to enhance the strength and hardness of 7075 aluminum through heat treatment, also called tempering.<\/p>\n<\/div>

\"7075T6<\/span><\/div>

7075 aluminum alloy has several popular tempers as the table below shows:<\/p>\n<\/div>\n

\n\n\n\n\n\n\n
Temper<\/strong><\/th>\nDescription<\/strong><\/th>\n<\/tr>\n<\/thead>\n
7075-T6<\/td>\nSolution heat-treated followed by artificial aging<\/p>\n

Temper -T6511 is for products that have been stretched for stress relief<\/td>\n<\/tr>\n

7075-T73<\/td>\nSolution heat-treated<\/p>\n

Stabilized\/ over-aged<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div><\/div><\/div><\/div>

Comparing Aluminum 7075 and Aluminum 6061<\/strong><\/h2>\n<\/div>

Significant strength is the most popular feature of 7075 aluminum. Despite the fact that the alloy is difficult to weld<\/a> and form, it has fair capability for corrosion resistance and machinability.<\/p>\n

6061 aluminum is also strong, plus it has good machinability, corrosion resistance, and capability for welding. Unlike 7075 aluminum, this alloy is also easy to form.<\/p>\n

Next is a detailed comparison of several characteristics of the two aluminum alloys.<\/p>\n<\/div><\/div><\/div><\/div><\/div>

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The Chemical Composition of 6061 vs. 7075 Aluminum<\/h3>\n<\/div>

You can deduce the chemical difference between 6061 aluminum and 7075 aluminum from the number designation. While 7075 aluminum belongs to the 7XXX series, 6061 aluminum is from the 6XXX series.<\/p>\n

Even without a datasheet, it can be determined that 7075 aluminum contains more zinc percentage and 6061 aluminum contains more silicon percentage. Focusing on the ranges of the two aluminum alloys suggests that 7075 aluminum contains more copper and magnesium percentages.<\/p>\n

Find below a table showing the specific chemical composition of both aluminum alloys:<\/p>\n<\/div>\n

\n\n\n\n\n\n\n
ALUMINIUM ALLOY<\/th>\nSi<\/th>\nFe<\/th>\nCu<\/th>\nMn<\/th>\nMg<\/th>\nCr<\/th>\nZn<\/th>\nTi<\/th>\nZr<\/th>\nOthers<\/th>\nAL<\/th>\n<\/tr>\n<\/thead>\n
7075<\/td>\n0.4<\/td>\n0.5<\/td>\n1.2-2.0<\/td>\n0.3<\/td>\n2.1-2.9<\/td>\n0.18-0.28<\/td>\n5.1-6.1<\/td>\n0.2<\/td>\n\u2014\u2014<\/td>\n0.15<\/td>\nreminder<\/td>\n<\/tr>\n
6061<\/td>\n0.4-0.8<\/td>\n0.7<\/td>\n0.15-0.4<\/td>\n0.15<\/td>\n0.8-1.2<\/td>\n0.04-0.35<\/td>\n0.25<\/td>\n0.15<\/td>\n\u2014\u2014<\/td>\n0.15<\/td>\nreminder<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u2723All compositions are in percent.<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div>

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The Mechanical Properties of 6061 vs. 7075 Aluminum<\/h3>\n<\/div>

Some important parameters in this regard are strength, thermal conductivity, electrical resistivity, and elasticity. Others are temperature resistance, material hardness, and corrosion resistance.<\/p>\n

The strength of aluminum alloys can be further divided into yield strength, shear strength, and tensile strength.<\/p>\n

The yield strength<\/strong>\u00a0refers to the capability of a material to withstand impact and pressure before deforming. 7075 aluminum is a better performer in this aspect. For instance, the yield strength of T6 temper 7075 can be as high as 480 MPa. 6061 is lower at 276MPa, but this is still a decent level.<\/p>\n

The shear strength<\/strong>\u00a0and tensile strength<\/strong>\u00a0of 7075 T6 aluminum are also markedly higher than the corresponding figures for 6061-T6 aluminum.<\/p>\n

Considering the differences in heat treatment and chemical composition, 6061 and 7075 aluminum are bound to have different thermal conductivities<\/strong>. For your project where heat dissipation is a primary consideration, you might want to pick 6061 aluminum \u2013 its thermal conductivity is higher than that of 7075 aluminum.<\/p>\n

As you would expect, there is a similar relationship concerning electrical resistivity<\/strong>. While the two aluminum alloys conduct electricity well, electrical resistivity is lower in 6061 aluminum than in 7075 aluminum.<\/p>\n

Both aluminum alloys have excellent elasticity<\/strong>\u00a0and material hardness<\/strong>, but 7075 aluminum has an edge in the capability to resist deformation or cracking amid pressure.<\/p>\n

The results are different when it comes to corrosion resistance<\/strong>. Because of the higher copper (sensitive to the environment) content, 7075 aluminum alloy is more prone to corrosion than 6061 aluminum alloy.<\/p>\n<\/div>\n

\n\n\n\n\n\n\n
Alloy<\/th>\nTensile Strength (MPa)<\/th>\nYield Strength (MPa)<\/th>\nHardness HBW<\/th>\n<\/tr>\n<\/thead>\n
6061-T6<\/td>\n260<\/td>\n240<\/td>\n95<\/td>\n<\/tr>\n
7075-T6<\/td>\n540<\/td>\n470<\/td>\n150<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u2723The tested value is Min.<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div>

7075 Aluminum and 6061 Aluminum Extrusions and Tempers<\/strong><\/h2>\n<\/div>

These alloys are hard, but they can still undergo extrusion. This is through the usual extrusion process comprising the following steps:<\/p>\n