Aluminum rounds are a go-to material in the machining world because they are strong, lightweight, and incredibly versatile. These cylindrical rods are used in everything from aerospace parts to custom tools, thanks to their excellent performance and workability. In this blog, we’ll explore what makes aluminum rounds so valuable, the different grades available, and how to choose the right type for your next machining project.

What Are Aluminum Rounds?
Aluminum rounds are solid, cylindrical rods made entirely of aluminum, known for their lightweight strength, corrosion resistance, and workability. Available in a range of diameters and lengths, these rods are often sold by metal supply companies and are offered in different grades like 6061 and 7075. Each grade offers unique benefits. Machinists and fabricators love aluminum rounds because they’re easy to cut, drill, and shape, making them ideal for creating parts, fixtures, shafts, and more. Whether you’re a hobbyist or an industrial manufacturer, aluminum rounds offer a reliable foundation for a wide range of machining applications. Choosing the right size and alloy grade helps ensure your project meets both performance and budget requirements.
Why Choose Aluminum for Machining?
Aluminum is one of the top choices for machining projects, and for good reason. Its excellent strength-to-weight ratio means you get a material that’s tough without being bulky, perfect for parts that need to be durable but not overly heavy. Aluminum is also incredibly machinable. It’s easy to cut, drill, shape, and even weld, which saves both time and tools during production. This workability makes it a favorite for everything from custom automotive parts to precision aerospace components.
On top of that, aluminum naturally resists corrosion and wear, even in outdoor or high-humidity environments, which adds to its long-term value and reliability. Whether you’re building something small or large-scale, aluminum provides a smart balance of strength, efficiency, and performance.
Key Applications
Aluminum rounds are incredibly versatile and show up in a wide range of industries thanks to their strength, lightweight nature, and corrosion resistance. In aerospace, they’re used for components that need to be both durable and light—think brackets, housings, and connectors that help keep aircraft efficient and safe. The automotive industry also relies heavily on aluminum rounds for parts like shafts, suspension components, and engine pieces. Their machinability and strength make them ideal for high-performance vehicles.
For manufacturers and machinists, aluminum rounds are perfect for crafting custom tools, fixtures, and detailed prototypes, especially when precision and reliability matter. Even in construction, they’re popular for both structural supports and decorative features like trim, posts, or railings, adding both beauty and function. No matter the application, aluminum rounds offer the adaptability and performance needed to bring high-quality projects to life.

Strength and Flexibility in Practice
Aluminum rounds strike the perfect balance between strength and flexibility which make them a favorite in demanding machining environments. For example, they can handle significant stress without cracking or breaking—ideal for parts that need to withstand pressure or movement, like automotive suspension pieces or aerospace fittings. Their excellent machinability means they hold up well under high-speed and high-precision operations, producing clean, accurate cuts with minimal effort. This not only speeds up production time but also helps maintain tight tolerances essential for performance parts.
Unlike harder metals, aluminum causes less wear on cutting tools to save time and money on replacements and maintenance. Whether you’re fabricating complex parts or running bulk production, aluminum rounds offer durability, efficiency, and consistency every step of the way.
Choosing the Right Grade
Choosing the right grade of aluminum round can make all the difference in your machining project. Two of the most common options are 6061 and 7075. Aluminum 6061 is a go-to for general use—strong, corrosion-resistant, and easy to weld or machine, making it perfect for structural parts or prototypes. On the other hand, 7075 is known for its exceptional strength and toughness, often used in aerospace and performance-critical applications. It’s not as easy to weld but offers unmatched durability.
When selecting a grade, think about what your project demands most, like high strength, corrosion resistance, or ease of machining. Talking with your supplier or a machining expert can help you match the right alloy to your goals and ensure your finished product performs exactly as needed.
Why Choose Norfolk Iron & Metal for Aluminum Rounds?
At Norfolk Iron & Metal, we carry a wide range of aluminum grades and sizes to meet your exact needs. Whether you’re working on aerospace parts, automotive components, or custom tools, our team is here to help you find the right fit. Contact us today to get expert support and high-quality aluminum rounds for your next job.
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