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This section provides an overview for duralumin as well as their applications and principles. Also, please take a look at the list of 7 duralumin manufacturers and their company rankings. Here are the top-ranked duralumin companies as of December, 2024: 1.Falcon Aerospace, 2.Nextgen Steel & Alloys, 3.FOSHAN KAIYA ALUMINUM CO., LTD..
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Duralumin is a type of high-strength aluminum alloy.
The standard composition is aluminum with 4% copper and small amounts of magnesium and manganese. duralumin is heated to about 540°C, quenched in water, and left at room temperature for about 96 hours to gradually harden to a strength comparable to that of mild steel.
Duralumin is an extremely practical alloy because its density is about one-third that of steel while its strength is equivalent to steel.
As aircraft have developed, improvements have been made, and higher-strength super duralumin and extra super duralumin have also been put to practical use.
Duralumin's specific gravity is about one-third that of iron, and its strength per unit weight is three times that of iron. For this reason, duralumin is best suited for use in aircraft, which require a high strength value, and has long been used as a structural material for aircraft fuselages.
It is also used as a structural material for automobiles, construction, and other strong structural materials due to its superior properties.
It is also used in industrial applications such as screws, aerospace equipment, gear parts, rivets, hydraulic parts, and marine parts, and is widely used in familiar products such as skis, metal bats, and other sporting goods.
Duralumin has excellent machinability compared to other aluminum alloys, but its fusion weldability and corrosion resistance are relatively weak. Therefore, when duralumin is used for parts or products to be used in corrosive environments, adequate corrosion protection treatment is required. This drawback is caused by copper added to increase hardness, which reduces corrosion resistance.
Examples of anti-corrosion treatment methods include using duralumin sandwiched between stainless steel or other materials with excellent corrosion resistance.
In addition to ordinary duralumin, there are two other types of duralumin: super duralumin and extra super duralumin.
Super Duralumin differs from ordinary duralumin in the amount of copper and magnesium added. By increasing the addition of copper and magnesium, it has higher strength and machinability than duralumin.
Extra Super Duralumin has much higher strength than duralumin. Duralumin is an alloy of copper and magnesium with additional zinc. The strength of duralumin is only slightly less than that of stainless steel, making it one of the strongest aluminum alloys.
Regarding machinability, duralumin and super duralumin are good and easy to cut, while extra super duralumin is a difficult-to-cut material due to its high strength.
Duralumin has a strength of 425N/mm2, which is much higher than aluminum's tensile strength of 260N/mm2. Duralumin can be said to have a tensile strength equivalent to steel even though it is an aluminum alloy. In addition, its specific gravity is 2.79, much lower than that of steel (7.87), so it has the advantage of being about three times lighter than steel while having the same level of strength.
One drawback of duralumin is its low weldability. Like aluminum, it has high thermal conductivity and is prone to distortion compared to steel, so welding time must be shortened. It is a very difficult material to weld because the melting point is also low and the base metal tends to melt off. For this reason, measures are taken such as using resistance spot welders with lower temperatures than normal welding, and in some cases, rivets and bolts are used instead of welding to join the material.
Among aluminum alloys, duralumin is particularly susceptible to intergranular corrosion, in which corrosion occurs between crystals of the metal, which has the disadvantage of causing cracking.
*Including some distributors, etc.
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Chongqing Huanyu, established in 1996 and located in Xipeng Town, Chongqing, China, is a manufacturer of aluminum profiles, aluminum die forgings, and free aluminum forgings. The company’s main marketing products include aluminum alloy sheets, aluminum tubes, aluminum rods, aluminum profiles, aluminum die forgings, and free aluminum forgings. Its aluminum alloy products are manufactured in an environmentally friendly factory with ISO 9001 / TS 16949 quality management system certification. The products find applications in various industries such as aerospace, land transportation equipment manufacturing, shipbuilding, power generation, and consumer electronics.
Nextgen Steel & Alloys, headquartered in Ahmedabad, Gujarat, India, is a manufacturer and supplier of steel and alloy products. Its diverse product range includes stainless steel, carbon steel, and alloy steel products such as bars, sheets, and tubes, catering to various industries like food processing, construction, aerospace, and more. Additionally, the company offers wire rods for applications like concrete reinforcement and manufacturing nails, screws, and wire mesh. It also provides forged products used in crafting gears, shafts, and machine parts.
Auremo Company, a company founded in 2003, based in Saarbrücken, Germany, is a supplier of non-ferrous metal products. The company offers various products such as titanium, nickel, copper, aluminium, bronze, brass, and stainless steel in different forms and sizes. It is a global supplier of non-ferrous and stainless steel and offers a range of products, including aluminum, copper, brass, bronze, nickel alloys, titanium, and stainless steel. It also supplies various metal processing services, such as cutting, bending, and welding.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Falcon Aerospace |
37.1%
|
| 2 | Nextgen Steel & Alloys |
18.6%
|
| 3 | FOSHAN KAIYA ALUMINUM CO., LTD. |
12.9%
|
| 4 | Nuclear Power |
10.0%
|
| 5 | Auremo Company |
8.6%
|
| 6 | Chongqing Huanyu Aluminum Material Co., Ltd. |
7.1%
|
| 7 | SUMIPARTS S.A.S |
5.7%
|
Derivation Method
The ranking is calculated based on the click share within the duralumin page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
China
|
2 | 40.0% |
United States of America
|
1 | 20.0% |
|
India
|
1 | 20.0% |
| Colombia | 1 | 20.0% |
12 products found
12 products
Manse Kogyo Co., Ltd.
50+ people viewing
Standard Response
■About features and handling A2017, also known as duralumin, is an aluminum alloy classified as 2000 series (Cu-Mg series). 2000 series aluminum al...
Manse Kogyo Co., Ltd.
50+ people viewing
Last viewed: 2 hours ago
Standard Response
■Features ・Also called duralumin, A2000 series high-strength alloy round bar containing a large amount of Cu (copper) ・Good: High strength, machi...
Kuno Sangyo Co., Ltd.
390+ people viewing
Last viewed: 17 hours ago
It is an alloy containing 3.5 to 4.5% copper (Cu), and is also called duralumin. Since the 2,000 series is a heat-treated alloy, its strength is in...
10 models listed
