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This section provides an overview for 7075 aluminum as well as their applications and principles. Also, please take a look at the list of 13 7075 aluminum manufacturers and their company rankings. Here are the top-ranked 7075 aluminum companies as of December, 2024: 1.Bob Martin Co., 2.Clinton Aluminum, Inc, 3.Anchor-Harvey Components, LLC.
Table of Contents
7075 aluminum is a type of aluminum alloy.
The main component is aluminum, to which are added 1.2 to 2.0% copper, 2.1 to 2.9% magnesium, and 5.1 to 6.1% zinc. It has the same strength as steel, but is lighter.
Compared to duralumin, it is about 1.5 times stronger. However, its high copper content makes it less resistant to corrosion, which is a disadvantage. Care should be taken because its strength decreases after a long period.
7075 aluminum is light for its strength, about one-third lighter than stainless steel, which is a common steel material. Taking advantage of this feature, it is used not only for various aircraft materials but also for baseball bats. Besides railroad cars, it can be used for various sporting goods, such as metal bats, ski boards, and stocks.
However, 7075 aluminum has low corrosion resistance. Therefore, when used where corrosion resistance is required, it is sandwiched between materials with superior corrosion resistance, such as stainless steel. Rivet bolts are also used for welding to increase the degree of fixation.
7075 aluminum is a type of duralumin included in aluminum alloys. There are three types of duralumin: duralumin, 7075 aluminum, and super duralumin.
Duralumin and super duralumin are mainly alloys of aluminum and copper. In contrast, 7075 aluminum is an alloy of copper, zinc, and magnesium with aluminum as the main constituent.
The hardness of duralumin can be compared to HB (Brinell hardness). Aluminum is 65 HB, duralumin is 105 HB, 7075 aluminum is 120 HB, 7075 aluminum is 160 HB, and stainless steel is 187 HB.
In 1906, an aluminum alloy with copper added was produced. Especially when left for a day, it shows a significant increase in hardness compared to that immediately after quenching. This aluminum alloy entered the market as duralumin.
Duralumin with high tensile strength was developed in 1928. In 1931, an alloy without silicon and with an increased magnesium content of 1.5% was invented.
Stress corrosion cracking, however, was a problem with many high-strength metals. To prevent stress corrosion cracking, it was counteracted by the addition of chromium. In 1936, 7075 aluminum, the strongest duralumin at that time, was developed.
7075 aluminum is one of the strongest aluminum alloys. The proportion of magnesium is increased and zinc is added for strength. The higher the "super" in duralumin, the higher the strength, but the weight, weldability, and corrosion resistance of the alloy itself remain almost the same.
Common duralumin is the least expensive of the three types of duralumin. It is used in familiar products, of which duralumin cases are a typical example. It is lightweight, strong, and suitable for carrying luggage.
7075 aluminum is an intermediate strength between 7075 aluminum and 7075 aluminum super-duralumin. Like 7075 aluminum, it is often used for aircraft parts.
To ensure strength, magnesium, copper, and zinc are added to aluminum in 7075 aluminum. The addition of zinc increases strength but creates a small risk of stress corrosion cracking.
Duralumin is a material whose strength is increased by age hardening. Age hardening is a phenomenon in which, after quenching, the material is left to rest for a day or so and its strength is higher than that of the material immediately after quenching. Although Duralumin is made stronger by age hardening, it loses its strength little by little when used over a long period.
*Including some distributors, etc.
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Bob Martin Co. is a manufacturer of uncoated wire for welding wire, stainless steel wire, resistance wire, and safety wire that is headquartered in South El Monte, California and was founded in 1892. The company offers both wire services and wire products. ITs wire services range from straightening and cutting, alloy identification, strand annealing, and centerless grinding. Its product catalog includes steel annealed wire, galvanized wire, copper wire, aluminum wire, and welding wire. The company caters to the aerospace, military, medical, and commercial industries whose customer furnished material is served with its services and product catalog.
California Metal & Supply, Inc., founded in 1984, and headquartered in Santa Fe Springs, California, is a manufacturer, distributor, and supplier of quality metals and alloys. The company offers a range of products, including titanium, Inconel, nickel, aluminum, and stainless steel which caters to industries such as aerospace, defense, and industrial markets. Their products are used in for making rocket engines, spacecraft, launch vehicles, satellites, and support ground equipment. The company is also AS 9100D/ISO9001 Certified through NSF-ISR.
Anchor-Harvey Components, LLC, established in 1923, is a data-driven aluminum forging manufacturing company that fabricates nonferrous forgings, based in Freeport, Illinois, the United States. The company’s major customers are in the aerospace, electrical components, general manufacturing, and medical industries. It has modernized the age-old aluminum forging process by introducing sophisticated technology to monitor and control every step of the operation. It is continually ranked as a top forge shop by major OEMs and senior industry experts. It consistency, efficiency, and expertise make it a sought-after partner in its field.
Michlin Metals Inc., located in Illinois, USA, is a supplier and distributor of various metals and materials founded in 1984. The company provides various metal materials, including stainless steel, specialty steel, aluminum, aircraft alloys, and "hard-to-find" materials. Its services include precision ground tolerances, heat-treated conditions, and other value-added processes to meet its client's specific requirements, which eliminates the need for clients to issue multiple purchase orders for different metal needs. Additionally, the company is an approved supplier for companies like The Boeing Company and United Technologies Corporation (UTC), along with other large OEMs, including NASA, The US Navy, and Army.
ZP Aluminum Co., Ltd., established in 2005 and located in Guangdong, China, is a manufacturer that specializes in engineered products. The company offers a wide range of products, including aluminum extrusion profiles, aluminum heat sinks, CNC machining, and more. It also offers impact extrusion, external aluminum louvers, and trench grate. Its aluminum heat sinks can quickly transfer heat away from the device and into the heat sink and help maintain a stable operating temperature for the device. The company has obtained ISO 9001:2015 and SGS certifications. It serves industries such as construction, industrial, and LED strip lighting.
FONNOV ALUMINIUM is a professional aluminum extrusion manufacturer founded in 2004 and headquartered in Jiangsu, China. The company mainly produces extruded aluminum profiles and machined aluminum components, with various surface finishing options like anodizing, powder coating, wood finish, fluorocarbon (PVDF) coating, and wet painting. It also provides fabrication and CNC machining services, including precision cutting, hole-punching, CNC milling, laser cutting, and secondary finishing for aluminum products. The company serves the construction, transportation, machinery equipment, consumer goods, and electronics sectors.
Wellste is a Chinese manufacturer of custom extruded aluminum products that was established in 1996. Based in Jingkou, Zhenjiang, the company produces a wide range of non-standard extruded aluminum products including pipes and tubes, T-slot systems, window or door profiles, and heat sinks. It has an annual production capacity of 100,000 tons and uses pure aluminum ingot for its products. Wellste also offers design, engineering, and OEM/ODM services to its clients in the renewable energy, architectural, electronics, and automotive sectors.
Norsk Hydro, founded in 1905 and headquartered in Oslo, Norway, is a manufacturer and supplier of aluminum products and solutions across the complete aluminum value chain. The company's range of aluminum products includes low carbon and recycled aluminum, extruded profiles, precision tubes, and welded tubes. The aluminum products are utilized in diverse industries like construction, transportation, and manufacturing. Its renewable energy solutions play a significant role in supporting sustainable power generation and advancing industrial progress.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Bob Martin Co. |
16.7%
|
| 2 | Clinton Aluminum, Inc |
14.3%
|
| 3 | Anchor-Harvey Components, LLC |
11.9%
|
| 4 | California Metal & Supply, Inc. |
11.9%
|
| 5 | Vegas Fastener Manufacturing |
9.5%
|
| 6 | Michlin Metals, Inc. |
7.1%
|
| 7 | DIX Metals, Inc. |
4.8%
|
| 8 | ZP Aluminum Co., Ltd |
4.8%
|
| 9 | FONNOV ALUMINIUM |
4.8%
|
| 10 | Wellste |
4.8%
|
Derivation Method
The ranking is calculated based on the click share within the 7075 aluminum 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 (%) |
|---|---|---|
|
United States of America
|
7 | 58.3% |
|
China
|
3 | 25.0% |
|
Norway
|
1 | 8.3% |
United Kingdom
|
1 | 8.3% |
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