When selecting sturdy, lightweight aluminum for machining, 7075 alloy stands out for high strength, excellent hardness, and corrosion resistance. This guide highlights five top 7075 round bar stock options available on Amazon that suit DIY, professional fabrication, and industrial projects. Each pick offers strong performance, easy cutting, and reliable machinability. Explore the options below to find sizes and finishes that fit your specific needs, from small-diameter rods to longer, stock-ready bars.
Product overview
| Product | Diameter | Length | Brand |
|---|---|---|---|
| uxcell 1″ Dia Round Aluminum Rod | 1″ (25mm) | 12″ (305mm) | uxcell |
| uxcell 2Pcs 5/8″ Dia Round Aluminum Rod | 5/8″ (16mm) | 12″ (305mm) | uxcell |
| uxcell 1 1/4″ Dia Round Aluminum Rod | 1 1/4″ (32mm) | 6″ (153mm) | uxcell |
| 7075 Aluminum Round Bar, Unpolished | 0.5″ | 24″ | Online Metals |
| 7075 Aluminum Round Bar, Unpolished | 0.75″ | 12″ | Online Metals |
uxcell 1″ Dia Round Aluminum Rod, 12″ Long
What You Get: One round aluminum rod, 12″ long with a 1″ diameter. Material: 7075 aluminum alloy. This rod provides a balance of high strength and light weight, suited for structural components and hobby projects alike. It is easy to cut and weld, making it versatile for custom fabrications.
Why it matters: 7075 aluminum is known for strength comparable to certain steels, yet remains lightweight and corrosion resistant. The 1″ diameter size is a common stock for mechanical linkages, spacers, and custom shafts. Users can machine to precise tolerances, enabling reliable assemblies in DIY and industrial contexts.
uxcell 2Pcs 5/8″ Dia Round Aluminum Rod, 12″ Long
What You Get: Two pieces of round aluminum rod, each 12″ long and 5/8″ in diameter. Material: 7075 aluminum alloy with good strength and corrosion resistance. The rods are suitable for cutting to length, welding, and various fabrication tasks.
Why it matters: Having two pieces at a compact diameter supports small-batch projects and prototype builds. The 5/8″ size is popular for bushings, pinions, and light-duty shafts, while the 7075 composition ensures performance under load without excessive weight.
uxcell 1 1/4″ Dia Round Aluminum Rod, 6″ Long
What You Get: One 6″ long rod with a 1 1/4″ diameter. Material: 7075 aluminum alloy ensures strength and wear resistance. It’s easy to machine and weld, enabling precise custom parts and prototypes.
Why it matters: The larger diameter provides greater rigidity for horizontal or vertical loads in small machines or fixtures. The compact 6″ length is convenient for bench-top tasks and quick-turn projects without excessive waste.
7075 Aluminum Round Bar, Unpolished, 0.5″ x 24″
What You Get: 24″ long bar with a 0.5″ diameter, finished in an unpolished mill state. Material: 7075 aluminum, notable for high strength and good corrosion resistance. T651 temper improves strength through heat treatment.
Why it matters: The 0.5″ diameter length is a staple in precision fixtures, sleeves, shafts, and small-scale mechanical components. The T651 temper provides stability under load, making it suitable for demanding applications where rigidity matters.
7075 Aluminum Round Bar, Unpolished, 0.75″ x 12″
What You Get: A 12″ bar with a 0.75″ diameter in a mill finish. Material: 7075 aluminum with strong strength-to-weight ratio and corrosion resistance. T651 temper adds rigidity for structural parts.
Why it matters: The 3/4″ diameter size strikes a balance between machinability and load capacity for fixtures, brackets, and custom rods in mechanical assemblies. The mill finish is often sufficient for non-critical surfaces or where post-processing is planned.
Buying Guide: Key considerations for 7075 aluminum bar stock
- Alloy and temper: 7075 alloy with T651 or similar temper offers high strength and good fatigue resistance. Consider temper depending on whether you need extra hardness (T6/T651) or better machinability (annealed).
- Diameter and length: Choose a stock size that matches your design tolerances and machining capabilities. Smaller diameters are easier to machine; longer lengths reduce the need for frequent reordering.
- Finish: Mill finish is common for many projects, but unpolished bars may require additional surface treatment. Polished or anodized finishes can improve corrosion resistance and aesthetics for visible parts.
- Machinability and workability: 7075 alloys machine well but can be prone to stress cracking if misused. Ensure proper feeds, speeds, and cooling when cutting or drilling.
- Application fit: For structural components, shafts, and fixtures, verify that the chosen diameter and temper meet load, wear, and environmental requirements.
- Availability and sourcing: Carve out needs for stock—whether you need single pieces for prototypes or multiples for production runs. Consider supplier consistency for future replacements.
- Cost versus performance: While 7075 offers excellent strength, assess whether alternative alloys (like 6061) provide a better balance of machinability and cost for your specific project.
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