7175 Aluminum Rod Bar
7175 aluminum bar is a heat-treatable, high-strength aluminum alloy designed for critical structural applications in the aerospace and defense industries. As a reinforced variant of the widely used 7075 alloy, 7175 offers superior mechanical properties, including excellent fracture toughness and improved resistance to stress corrosion cracking (SCC).
- High Mechanical Strength: 7175 aluminum alloy combines high strength and fracture toughness, making it particularly suitable for aerospace and other high-load applications.
- Fracture Toughness: It exhibits excellent fracture toughness, enhancing the durability and reliability of the material.
- Stress Corrosion Cracking Resistance: With outstanding stress corrosion cracking resistance, it ensures safety in harsh environments.
- Heat Treatable: The alloy can be enhanced through heat treatment, making it suitable for various processing methods, including cold working and hot working.
- Good Machinability: It is easy to process, allowing for larger bending radii, making it ideal for forging and die forging.
Our 7175 aluminium alloy bar rod conform to international standards such as AMS 4344, ASTM B247, MIL-A-22771, AMS-QQ-A-367. We can also provide Material Testing Certificates (MTC) and third-party inspection reports upon request to ensure quality assurance and traceability for your critical applications. We offer a variety of thicknesses and widths to meet diverse application needs, and provide standard and custom sizes to meet specific design requirements.
Specification
7175 Aluminum Alloy Bar Physical Properties
| Physical Property | Value |
| Density | 2.6-2.8 g/cm³ |
| Melting point | 482°C |
| Thermal conductivity | 177 (W/mK) |
| Elastic modulus | 70-80 Gpa |
| Poisson’s ratio | 0.33 |
7175 Aluminum Alloy Bar Chemical Composition
| Element | 7175(ASTM B247) |
| Si | 0.15 |
| Fe | 0.20 |
| Cu | 1.2-2.0 |
| Mn | 0.1 |
| Mg | 2.1-2.9 |
| Cr | 0.18-0.28 |
| Zn | 5.1-6.1 |
| Ti | 0.10 |
| Others (Each) | 0.05 |
| Others (Total) | 0.15 |
| Al | Rem |
| The primary alloying elements in 7175 aluminium include zinc, copper, magnesium, and chromium. Zinc is the main strengthening element that increases strength; copper enhances tensile strength but must be controlled to maintain corrosion resistance; magnesium improves both corrosion resistance and weldability; and chromium further enhances strength and corrosion performance. This makes 7175 aluminum alloy particularly suitable for high-load and demanding applications, such as those in the aerospace industry. | |
7175 Aluminum Bar Mechanical Properties
| Mechanical Properties | 7175-T74 | 7175-T7452 | 7175-T7454 |
| Tensile Strength, min, ksi | 76.0 | 73.0 | 75.0 |
| Yield strength (0.2 %Offset), min, ksi | 66.0 | 63.0 | 65.0 |
| Elongation E in 2 in. or 4xDia, min, % | 4% | 4% | 4% |
HSTF 7175 Aluminum Rod Bar Product
HSTF supplies 7175 aluminum bars in multiple product shapes—including round bar, square bar, flat bar, and hexagonal bars—to support a wide range of aerospace and structural applications. All bar types are available in standard or customized dimensions, ensuring flexibility for CNC machining, forging, or high-load assembly needs.
7175 T74 Aluminum Forged Rod
7175-T74 is an aluminum alloy that has undergone solution heat treatment and artificial aging to optimize its mechanical properties. It achieves a balance between tensile strength, stress corrosion resistance, exfoliation corrosion resistance, and fracture toughness. This alloy is suitable for aerospace engineering applications that require high strength and corrosion resistance, such as aircraft structures, aircraft fasteners, and landing gear.
7175 T7452 Aluminum Forged Rod
7175-T7452 is an aluminum alloy that has undergone solution heat treatment and stress relief, followed by artificial aging to enhance its stability. It provides excellent strength and corrosion resistance, making it suitable for high-load applications. 7175-T7452 aluminum forged rod is widely used in aircraft engine parts, turbine blades, and turbine disks.
7175 T7454 Aluminum Forged Rod
7175-T7454 is an aluminum alloy that has undergone solution heat treatment and stress relief, followed by artificial aging to improve stability. It optimizes the alloy’s strength and toughness, enhancing its corrosion resistance. The 7175-T7454 aluminum forged rod is well-suited for components such as gears, shafts, and wing tension members.
7175 T73511 Aluminum Extruded Rod
7175 T73511 aluminum extruded bar is processed through a special heat treatment process, offering excellent strength and toughness. It provides significant stress corrosion cracking resistance, making it an ideal choice for structural applications and fittings (such as bolts and rivets).
Application
7175 Aluminum Bar for Aerospace
7175 aluminum bars, after heat treatment (T6, T73, etc.), possess extremely high specific strength, making them a crucial structural material in high-end fields such as aerospace and aviation. Their most typical applications are in the main load-bearing structural components of aircraft fuselages and wings, such as wing spars, stringers, bulkheads, skin reinforcements, and landing gear supports.
These components require materials that can withstand high loads, high stresses, and alternating fatigue while maintaining extremely low weight. 7175 aluminum bars fully meet the stringent safety and performance standards of aerospace.
High-end Transportation and Defense Equipment
In the field of high-end transportation and defense equipment, 7175 aluminum bars are used to manufacture chassis, roll cages, suspension arms, drive shaft supports for high-performance racing cars, as well as some structural components for military armored vehicles and missile casings. Its high specific strength significantly reduces the weight of moving parts and protective structures, improving acceleration, handling, and maneuverability, while its fatigue resistance and stress corrosion resistance ensure that critical components remain reliable under extreme conditions.
7175 Aluminum Bar for Sports Equipment
In sports equipment and high-end consumer products, 7175 aluminum rods are processed into competition-grade bicycle frames, trekking poles, ski bindings, high-end photography tripods, drone arms, etc. Their combination of high strength and lightweight design allows the equipment to maintain structural safety while minimizing weight, improving user performance and equipment portability. Furthermore, surface treatments such as anodizing can enhance appearance and wear resistance.
7075 vs 7175
- Strength and Toughness: 7075 has slightly higher strength, but its toughness is lower than that of 7175. Thus, 7175 is more suitable for high durability requirements in aerospace structures.
- Composition Control: 7175 has stricter controls on iron and silicon content in the alloy to optimize overall strength and toughness.
- Machinability: Both alloys can be cold worked and hot worked, with 7175 achieving similar larger bending radii as 7075.
In addition to 7075 and 7175, HSTF also supplies a full range of high-strength hard aluminum alloys for aerospace and heavy-duty structural applications. These include 7050 for excellent corrosion resistance and fracture toughness, 2024 for superior fatigue performance, and 7475 for components requiring outstanding damage tolerance. This comprehensive selection ensures optimal material solutions for various critical engineering demands.
Package
| Packing | 1,Generaally package:Anti-water paper+strapped with min three strapping strips. |
| 2,Standard exporting package:Anti-water paper and plastic+covered by iron shrrt+strapped with min three strapping strips. | |
| 3,Excellent package:Anti-water paper and plastic film+covered by iron sheet+strapped with min three strapping strip+fixed on the iron or wooden pallets by strapping strips. | |
| Shipping | 1,Shipping by containers |
| 2,Shipping by bulk ship | |
| Custom | Customization is available upon request |
Why Choose Us?
Quality Assurance – All products comply with ASTM, EN, ISO, ensuring high purity, uniformstructure, and stable performance.
Professional Supplier – Professional 7175 aluminum alloy bar rod supplier in China. We have an advanced factory to ensure quality and efficiency.
Competitive Price – The mature supply chain system ensure that our products are highly competitive in cost and price.
Superior Quality – Quality supervision on whole process of production from raw materials, manufacturing, packaging, warehousing till container loading.
On-Time Delivery – The mature logistics management system and company self owned freight forwarder ensure that our OTD rate reaches 100%.
