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7075 Aluminum Round Bar is a high-strength heat-treatable alloy known for its exceptional mechanical properties and lightweight performance. With an excellent strength-to-weight ratio and good machinability, it is widely used in aerospace, molds, transportation, and precision engineering applications where maximum durability is required.
Its ultra-high strength and excellent fatigue resistance make this alloy an ideal choice for high-performance components subjected to demanding mechanical loads. The same alloy is also available in flat, square, and hex bar profiles to support a wider range of manufacturing and structural applications.
7075 aluminum round bar is an ultra-high-strength heat-treatable Al-Zn-Mg-Cu alloy (7000 series) renowned as one of the strongest commercially available aluminum alloys. Delivering an exceptional strength-to-weight ratio, superior fatigue resistance, and good machinability, 7075 aluminum bar is widely specified in critical aerospace, defense, and high-stress precision engineering applications.
At XQJ Metal, we supply premium extruded and cold-drawn 7075 aluminum round bars manufactured strictly to international aerospace and industrial standards including ASTM B221, AMS 4123, and EN 755. We offer custom cut-to-length saw cutting, precision centerless grinding, and 100% ultrasonic flaw detection tailored to your high-precision manufacturing needs.
| Parameter | Standard Value / Specification |
| Alloy & Temper | 7075 / T6, T651, T7351, O |
| Diameter Range | 6mm – 500mm (0.25″ – 20.0″) |
| Length Range | 1000mm – 6000mm (Custom Saw Cutting Available) |
| Manufacturing Process | Extruded, Cold Drawn, Precision Centerless Ground |
| International Standards | ASTM B221, AMS 4123, EN 755, EN 573, ISO 6362, GB/T 3191 |
| Surface Processing | Mill Finish, Anodized, Polished Centerless Ground |
Q1: What is the main advantage of 7075-T651 compared to standard 7075-T6 round bar?
A: 7075-T651 undergoes stress-relieving through controlled stretching after solution heat treatment, significantly reducing material deformation and warping during heavy CNC machining operations.
Q2: Is 7075 aluminum round bar suitable for welding applications?
A: 7075 has limited arc weldability due to its susceptibility to micro-cracking. Mechanical fastening, riveting, or specialized friction stir welding are recommended for joining 7075 components.
Q3: What is your Minimum Order Quantity (MOQ) for 7075 aluminum round bar?
A: Our standard MOQ is 500 kg per diameter. Small trial orders or cut sample pieces can be supplied for stocked inventory dimensions.
If you require specific tempers, precision ground tolerances, or technical material datasheets, explore our full range of Aluminum Bar Products or Contact Our Technical Sales Team directly for a fast factory-direct quote.
Our materials support a wide range of construction and infrastructure projects
7075 aluminum round bar provides significantly higher strength than 6061, making it suitable for high-load applications. In comparison, 6061 offers better corrosion resistance, weldability, and overall fabrication versatility. The appropriate alloy should be selected according to the required mechanical performance and service conditions.
7075 aluminum round bar offers an outstanding strength-to-weight ratio, making it a preferred material for aerospace components, high-performance machinery, molds, and other applications where weight reduction and mechanical strength are critical.
7075 aluminum round bar is commonly machined into gears, shafts, fixtures, molds, aerospace fittings, structural connectors, and other components that require high mechanical strength and dimensional stability. Material selection should consider the required strength, fatigue performance, and service environment.
It offers excellent resistance to seawater corrosion and maintains strength in humid and salt-rich conditions.
No. Strength is achieved through strain hardening rather than heat treatment.
Yes. It provides excellent weldability for structural fabrication.
Yes, it is commonly applied in tanks and pressure equipment.
Yes. It provides higher strength compared with most non-heat-treated aluminum alloys.
Yes. Thickness, width and temper can be adjusted based on project demand.
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