7050 aluminum alloy is an alloy for superhard rivets. The plasticity of quenching and artificial aging is enough to make rivets riveted; 7050 aluminum alloy can be strengthened by heat treatment, with high shear strength at room temperature, good corrosion resistance, and good machinability.
7050 fastener aluminum wire is generally used in aerospace, automobile industry, shipbuilding industry and construction and other fields.
Why choose Chalco Aluminum's 7050 aluminum alloy wire for rivets？
Quality could fully meet international standard, such as GB/T3195-2023.
Chalco produces various grades of aluminum alloy wires with very strict tolerances, specifications covering 0.5mm-20mm, and the weight of a single coil is produced according to customer requirements. 7050 fastener aluminum alloy wire is used to produce various fasteners, semi-tubular rivets, solid rivets, screws, nuts, and various high-end fields such as military industry, aviation, shipbuilding, and automobiles.
Specs of 7050 fastener aluminium wire
| Type | Alloy | Temper | Diameter mm |
| Fastener aluminum wire | 7050 | O H13、T73 | 1.60-15.00 |
Chemical composition of 7050 Alloy
| Element | Composition % |
| Si | 0.12 |
| Fe | 0.15 |
| Cu | 2.0-2.6 |
| Mn | 0.10 |
| Mg | 1.9-2.6 |
| Cr | 0.04 |
| Zr | 0.08-0.15 |
| Zn | 5.7-6.7 |
| Ti | 0.06 |
| Al | Remainder |
Mechanical properties of 7050 faster aluminum wire
| Alloy | Temper | temper | Diameter mm | mechanical properties | |||
| tensile strength Rm | Specified non-proportional tensile strength Rp0.2 | elongation after break | |||||
| MPa | MPa | % | |||||
| A100mm | A250mm | ||||||
| No less than | |||||||
| O | O | 1.6-10.0 | ≤275 | — | — | — | |
| 7050 | H13 | H13 | 235-305 | — | — | — | |
| O、H13 | T7 | 485 | 400 | 9 | — | ||
Shear strength and riveting properties of 7050 fastener aluminum wire
| Alloy | Temper | Sample Temper | Diameter mm | Shear strength τ Mpa | Riveting property | |
| Protrusion height of sample ratio to diameter | Riveting test time | |||||
| 7050 | O、H13 | T73 | 1.6-25.0 | ≥270 | ||
Dimension tolerance of 7050 fastener aluminium wire
| Diameter | Tolerance allowed | |||
| Grade A | Grade B | Grade C | Grade D | |
| ≤1.6 |
+0.000 -0.015 |
+0.015 -0.015 |
±0.015 |
+0.00 -0.04 |
| ＞1.6-4.0 |
+0.000 -0.025 |
+0.025 -0.015 |
±0.025 |
+0.00 -0.05 |
| ＞4.0-6.0 |
+0.000 -0.030 |
+0.025 -0.025 |
±0.040 |
+0.00 -0.08 |
| ＞6.0-10.0 |
+0.000 -0.040 |
+0.050 -0.025 |
±0.060 |
+0.00 -0.12 |
Appearance quality of 7050 fastener aluminium wire
| Defect name | Technical requirement |
| Fastener aluminum wire | |
| Cracks, burrs, peeling, air bubbles, bumps, dents, scratches, triangular mouths, metal press-in, non-metal press-in and surface corrosion | Not allowed |
| Scuffs, scratches, bumps | Allowable depth does not exceed half of the negative deviation value |
| Oil spots | Allowed |
Features of 7050 fastener aluminium wire
High strength: 7050 aluminum alloy has inherent high strength, so rivets made of this alloy can provide excellent fastening performance and can be used in applications requiring higher strength connections.
Lightweight: aluminum alloy is relatively light compared to many other metals, which helps to reduce the weight of the overall connected parts, which is especially important for the aerospace field and other fields that require lightweight design.
Corrosion resistance: 7050 aluminum alloys generally have good corrosion resistance, which allows the rivet to be used in harsh environments and is less susceptible to corrosion.
Processability: aluminum alloys generally have good processability, and can be processed into rivets of various shapes and sizes through different processes to meet the needs of different applications.
Heat treatment: 7050 aluminum alloy can further enhance its strength and hardness through heat treatment, which helps to improve the performance and service life of rivets.
Conductivity: aluminum is a good conductive material and rivets can be used in joining applications where conductivity is required.
Use of 7050 fastener aluminium wire
7050 aluminum wire has high application value in fasteners and is usually used in the following aspects:
Aerospace field: in the aerospace industry, the material requirements are very stringent, requiring high-strength and light-weight materials. 7050 aluminum alloy has high strength and low density, which is suitable for manufacturing aerospace fasteners, such as rivets and screws.
Automotive industry: in automotive manufacturing, fasteners are key elements for connecting and fixing various components. 7050 aluminum alloy aluminum wire can be used to manufacture high-strength aluminum alloy screws, bolts and other fasteners to meet the needs of the automotive industry for lightweight and high performance.
Shipbuilding industry: in shipbuilding and maintenance, it is often necessary to use high-strength, corrosion-resistant fasteners. 7050 aluminum alloy has good corrosion resistance and high strength, and is suitable for the manufacture of fasteners used in marine environments.
Construction engineering: in the field of construction, various fasteners are used to fix and connect structural components. 7050 aluminum alloy aluminum wire can be used to manufacture aluminum alloy screws, bolts and other fasteners with high shear strength, which is suitable for construction engineering applications.
Electronics: in some electronic devices, lightweight and strong materials are required for fasteners. 7050 aluminum alloy has suitable strength and light weight characteristics, which can meet the fastener needs of some electronic equipment.
In general, the advantages of 7050 aluminum alloy aluminum wire in the manufacture of fasteners lie in its high strength, good processability and corrosion resistance, making it an important material in the fields of aerospace, automobiles, ships, construction, etc. . However, in specific applications, it is still necessary to select the appropriate fastener material according to the specific needs and use environment.
Precautions for purchasing 7050 fastener aluminum wire
Supplier reputation: choose reputable and experienced suppliers or distributors. Check the supplier's customer testimonials and word of mouth to ensure that the products they provide are of reliable quality.
Product specifications: confirm whether the specifications of the purchased 7050 aluminum alloy wire meet your needs. Including parameters such as diameter and strength, make sure it is suitable for your specific application scenario.
Quality certification: find out whether the product has passed relevant quality certification, such as ISO certification, quality management system certification, etc. Certification demonstrates that a product meets international quality standards.
Material identification: make sure that there is a clear identification on the product, indicating that it is 7050 aluminum alloy wire, so as to avoid buying the wrong product.
Lot tracking: find out if the supplier is able to provide lot tracking services. In this way, in the later use, if there is a problem, the source of the raw material can be accurately found.
Inquiry and comparison: multiple suppliers make an inquiry and compare prices and services offered. Consider not only the price, but also product quality and after-sales service.
Transportation and packaging: confirm whether the supplier's transportation method and packaging can ensure the safe transportation and proper storage of the product.
Return policy: know the supplier's return policy in case there is an unforeseen problem after purchase and you need to return or exchange the product.
Legal compliance: ensure that the purchased 7050 aluminum alloy wire complies with local laws, regulations and quality standards.
Communicate with suppliers: communicate with suppliers before purchasing to clarify your needs and confirm product availability and delivery time.
You need to be cautious when purchasing any product, especially for some special materials, such as 7050 aluminum alloy wire, it is very important to ensure that the purchased product meets your requirements. If there are specific technical requirements or quality standards, it is recommended to fully communicate with the supplier and carefully verify the relevant information of the product before purchasing.
