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| Which metal alloys are stronger than steel? |
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Posted by: lolitahe69 - 12-14-2021, 08:55 AM - Forum: aluminium faq
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There are no metal alloys stronger than steel at the moment. There are other materials with different combinations of properties (high temperature mechanical strength for example, or strength to density ratios or elastic modulus to density ratios which optimize structures for weight) but there is no metal alloy with a higher tensile strength than steel.
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| Which is better aluminum or stainless steel? |
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Posted by: aluhm - 12-14-2021, 08:48 AM - Forum: aluminium faq
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Better for what?
Tensile or yield strength wise, aluminium can't match Stainless Steel at any level.
Hardness wise, some specific treatment can give higher Hardness for aluminium, easily compared to what can be achieved for stainless steel.
Corrosion resistance wise, based on the application, each has its merits.
As a cooking utensil, Aluminium is being less and less preferred since there were some studies and claims of its perceived contribution to Alzheimers' disease.
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| Is aluminium alloy stronger than stainless steel? |
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Posted by: aluhm - 12-14-2021, 08:42 AM - Forum: aluminium faq
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Not even close. Aluminum alloys typically have a Young's Modulus (linear stress-strain curve under tension) of approximately 10 MPa. Iron and most steel alloys have values of at least 30 MPa.
Aluminum alloys do not form flaking rust. And their density is only about 40% that of steel. This gives aluminum an advantage over steel…including stainless in some apllications. But aluminum alloys are never as strong as steel.
Not by a long shot.
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| Is aluminum or alloy lighter? |
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Posted by: aluhm - 12-14-2021, 08:41 AM - Forum: aluminium faq
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It can be lighter, it can be heavier, depending on its alloy elements and their quantities. Density of Aluminum Check this link for a table of wrought alloys densities.
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| What is the strongest aluminum alloy? |
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Posted by: lolitahe69 - 12-14-2021, 08:39 AM - Forum: aluminium faq
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7068 aluminium alloy is one of the strongest commercially available aluminium alloys, with a tensile strength comparable to that of some steels. This material, also known as an aircraft alloy, is heat treatable.
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| What alloy is most often used in aluminum beverage cans? |
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Posted by: aluhm - 12-14-2021, 08:29 AM - Forum: aluminium faq
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Aluminum beverage cans are produced from 3104 aluminum, generically referred to as aluminum can wrap. 3104 (AlMn1Mg1Cu) Aluminum is a special alloy, originally developed by Reynolds Aluminum, remarkable for it’s ability to be deep-drawn into thin beverage cans without tearing or work-hardening due to the presences of ten primary metals and a number of tertiary ones. Click on the link for the full alloy composition.
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| What are the advantages of a 7075 aluminum alloy? |
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Posted by: aluhm - 12-14-2021, 08:19 AM - Forum: aluminium faq
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To the 7075 aluminum alloy, in addition to the use of daily life, with the continuous improvement of technology, aluminum 7075 is also began to use in important transportation areas, such as aerospace structure materials, at the present, it has entered the development of the automotive field. With the rapid development of modern aerospace industry, higher requirements for the comprehensive properties of high-strength aluminum alloys are put forward. At the same time, the development of modern nuclear industry and transportation industry is in urgent need of high performance, light and economic structure materials, aluminum alloy technology has become the trend of the times.
The 7000 series aluminum is the strongest material in aluminum alloy. Especially, 7075 is super hard aluminum this is the main advantages of 7075 aluminum. With 7075-T651 aluminum alloy especially high quality, 7075 aluminum is praised as the best product of aluminum alloy, which has high strength and far better than any soft steel. The 7075 aluminium alloy has good mechanical and anodic reaction. The common product of 7075 aluminum alloy are 7075 aluminum sheet and 7075 aluminum profile. The representative applications are aeronautics and astronautics, mold processing, mechanical equipment and fixture, especially for the manufacture of aircraft structures and other high stress structures requiring high strength and corrosion resistance.
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| Why is an aluminium alloy stronger than pure aluminum? |
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Posted by: lolitahe69 - 12-14-2021, 07:58 AM - Forum: aluminium faq
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Most alloys are stronger than the pure metals. A lot of the aluminium alloys are precipitation hardening, meaning that there are small grains of harder material that block the movement of imperfections (dislocations) that are what deformation is about. … If you think of deformation as moving a rug through the material, the dislocations are like a little fold on the rug and it is much easier to move the fold than pulling the entire rug. Now, a precipitate, for example a magnesium silicide particle, act a bit like a nail through the carpet and effectively stops you from pushing the carpet fold along.
There are other hardening mechanisms, but most boil down to small areas being harder than the rest and very locally making it more complicated for the deformation to carry on through the material.
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| What is Steel Pickling? |
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Posted by: aluhm - 12-14-2021, 07:20 AM - Forum: Selling Leads
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Very simply, pickling is an acid bath process to remove the unusable iron oxide scale that forms on hot worked steels as well as other impurities (you may know iron oxide as rust, but there are actually at least 15 other known allotropes of iron oxide). When steels are hot worked, above their recrystallization temperature, oxygen will react with the outside layer of iron and produce a flaky layer of scale. This layer makes the steel difficult to work with and paint.
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| What Aluminum Grade Should I Use? |
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Posted by: lolitahe69 - 12-14-2021, 07:16 AM - Forum: aluminium faq
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Aluminum is a common metal used for both industrial and non-industrial applications. In most cases, it can be difficult to choose the correct Aluminum grade for your intended application. If your project does not have any physical or structural demands, and the aesthetics are not important, then almost any Aluminum grade will do the job.
We have compiled a short breakdown of each of the grades’ properties in order to provide you with a brief understanding of their many uses.
Alloy 1100: This grade is commercially pure aluminum. It is soft and ductile and has excellent workability, making it ideal for applications with difficult forming. It can be welded using any method, but it is non heat-treatable. It has an excellent resistance to corrosion and is commonly used in the chemical and food processing industries.
Alloy 2011: High mechanical strength and excellent machining capabilities are the highlights of this grade. It is often called – Free Machining Alloy (FMA), an excellent choice for projects done on automatic lathes. The high-speed machining of this grade will produce fine chips that are easily removed. Alloy 2011 is an excellent choice for production of complex and detailed parts.
Alloy 2014: A copper based alloy with very high strength and excellent machining capabilities. This alloy is commonly used in many aerospace structural applications due to its resistance.
Alloy 2024: One of the most commonly used high strength aluminum alloys. With its combination of high strength and excellent fatigue resistance, it is commonly used where a good strength-to-weight ratio is desired. This grade can be machined to a high finish and it can be formed in the annealed condition with subsequent heat treating, if needed. The corrosion resistance of this grade is relatively low. When this is an issue, 2024 is commonly used in an anodized finish or in clad form (thin surface layer of high purity aluminum) known as Alclad.
Alloy 3003: The most widely used of all aluminum alloys. A commercially pure aluminum with added manganese to increase its strength (20% stronger than the 1100 grade). It has excellent corrosion resistance, and workability. This grade can be deep drawn or spun, welded or brazed.
Alloy 5052: This is the highest strength alloy of the more non heat-treatable grades. Its fatigue strength is higher than most other aluminum grades. Alloy 5052 has a good resistance to marine atmosphere and salt water corrosion, and excellent workability. It can be easily drawn or formed into intricate shapes.
Alloy 6061: The most versatile of the heat-treatable aluminum alloys, while keeping most of the good qualities of aluminum. This grade has a great range of mechanical properties and corrosion resistance. It can be fabricated by most of the commonly used techniques and it has good workability in the annealed condition. It is welded by all methods and can be furnace brazed. As a result, it is used in a wide variety of products and applications where appearance and better corrosion resistance with good strength are required. The Tube and Angle shapes in this grade typically have rounded corners.
Alloy 6063: Commonly known as an architectural alloy. It has reasonably high tensile properties, excellent finishing characteristics and a high degree of resistance to corrosion. Most often found in various interior and exterior architectural applications and trim. It is very well suited for anodizing applications. The Tube and Angle shapes in this grade typically have square corners.
Alloy 7075: This is one of the highest strength aluminum alloys available. It has an excellent strength-to weight ratio, and it is ideally used for highly stressed parts. This grade can be formed in the annealed condition and subsequently heat treated, if needed. It can also be spot or flash welded (arc and gas not recommended).
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