7075 aluminum alloy

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Product information

Material: 7075
Availability: Customizable 
7075 aluminum alloy is one of the most outstanding high-strength deformation aluminum alloys in the commercial field. Its core characteristics are extremely high strength, excellent corrosion resistance, and lightweight advantages. It is widely used in high-demanding fields such as aerospace and mold manufacturing.
Core mechanical properties
Ultra-high strength: Tensile strength reaches 524-572 MPa, yield strength is 455-540 MPa, exceeding that of ordinary steel, and it is a typical high-strength heat-treatable alloy
Lightweight design: Density is only 2.8 g/cm³, about 65% lighter than steel, particularly suitable for the weight reduction requirements in aerospace fields
Excellent wear resistance: Vickers hardness reaches 160-190 HB, the fine grain structure significantly improves processing performance such as drilling and thread rolling
Chemical properties and stability
Alloy composition: Main strengthening elements are zinc (5.1-6.1%) and magnesium (2.1-2.9%), with minor additions of copper and chromium to enhance heat resistance and corrosion resistance
Corrosion resistance: In the T7351 heat treatment state, it can resist stress corrosion cracking, and has excellent oxidation resistance in normal environments
Thermal stability: The strength retention rate exceeds 95% below 150℃, suitable for high-temperature working conditions
Typical application fields
Aerospace: Manufacturing aircraft frames, missile parts, etc., as load-bearing structures, accounting for 35% of the aluminum alloy used in aviation
High-end equipment: Used for CNC machine tool fixtures, ultrasonic molds, etc., to improve the wear resistance of precision components, extending the equipment lifespan by 30%
Sports equipment: Manufacturing top-level bicycle frames, golf club heads, with both lightweight and impact resistance characteristics 
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Product parameter

Chemical composition

7075 aluminum alloy is a high-strength Al-Zn-Mg-Cu type super-hard aluminum alloy. Its main chemical components include zinc (5.1-6.1%), magnesium (2.1-2.9%), copper (1.2-2.0%), and an aluminum base, and it contains trace amounts of chromium, titanium, etc.
‌Main chemical components‌
The chemical composition (by weight percentage) of 7075 aluminum alloy is as follows:‌‌
‌Zinc (Zn): 5.1% - 6.1%, as the main strengthening element, it forms the MgZn₂ strengthening phase with magnesium
‌Magnesium (Mg): 2.1% - 2.9%, participates in the formation of strengthening phases and enhances the strength of the alloy
‌Copper (Cu): 1.2% - 2.0%, enhances the heat resistance and mechanical properties of the alloy
‌Aluminum (Al): the remainder, as the base metal
‌Trace added elements‌
‌Chromium (Cr): 0.18% - 0.28%, fine-grains and improve stress corrosion resistance
‌Titanium (Ti): ≤ 0.20%, assists in fine-grain refinement
‌Silicon (Si): ≤ 0.40%, iron (Fe): ≤ 0.50%, manganese (Mn): ≤ 0.30%, all are control elements for impurities
‌Impurity limits‌
The content of a single impurity does not exceed 0.05%, and the total does not exceed 0.15% 
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Shiyu Metal Material Technology Co., Ltd. is a collection of procurement, processing, agent, sales, logistics, warehousing in one of the enterprises, the company has a large-scale spot supply base in China, with domestic and foreign large steel mills and suppliers to maintain good relations of cooperation, with a full range of multi-channel procurement resources.
Shiyu Metal main products: nickel base alloy, Hastelloy, super austenitic stainless steel, duplex stainless steel, cobalt base alloy, pure nickel, titanium and titanium alloy, heat resistant, corrosion resistant alloy and other kinds of steel, a large number of product categories, can meet the size and thickness customization, prefabrication and other diversified needs.
The company has ISO9001 quality certification, the company's product standards include: the United States (UNS) ASTM /ASME, AMS, German DIN/EN, Japan (SUS) JIS and other standards supply, provide the original material certificate. We can supply according to the standards and technical requirements provided by customers to ensure that the goods and specifications are complete to meet the needs of various merchants. From raw materials to finished products, all go through three quality inspection to ensure the qualified rate of finished products. Shiyu Metal strives for perfection in every detail to ensure that the quality of products in different countries and regions around the world can meet international standards. Shiyu Metal has established a good strategic cooperative relationship with the world famous steel mills such as HAYNES, ATI, SPECIALMETALS, VDM, OUTOKUMPU, Japan Metallurgy, Nippon Steel, and Datong Special Steel.
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Shiyu Metal Material Technology Co., Ltd. is committed to the purchase, agent and sales of special steel, and has a perfect special steel sales management system and product quality supervision system. The company has been adhering to the "integrity, innovation, responsibility, win-win" business philosophy, adhere to the "quality first, customer first" service purpose, to provide customers with quality services and high-quality steel products. Shiyu Metal actively participates in the development of domestic steel industry ecology, and is willing to contribute to the development of national special steel.



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