What are the Best Metals for Machining?

Navigating the vast landscape of metals for CNC machining can be a complex endeavor. At Brodeur Machine Co. in New Bedford, MA, our century-long journey has taught us the significance of selecting the right metal for each project. This choice is critical to the success of the machining process, influencing everything from the ease of machining to the durability of the finished product.

Aluminum: The All-Rounder in CNC Machining

Aluminum stands out as a preferred choice in CNC machining for its lightweight yet strong nature. Its malleability and corrosion resistance make it ideal for a wide range of applications, from aerospace components to consumer electronics. At Brodeur Machine Co., we frequently utilize aluminum to deliver parts that require a balance of strength and weight.

Stainless Steel: Strength and Corrosion Resistance

Stainless steel is revered for its strength and resistance to corrosion and heat. Its versatility is evident in its various grades, each suited to different environments and applications. Our expertise in machining stainless steel allows us to serve industries that demand longevity and reliability in their components, such as medical and marine industries.

Brass: The Machinist’s Favorite for Intricate Work

Brass is a machinist’s favorite, especially for intricate and decorative pieces. Its low friction coefficient and resistance to corrosion make it a top choice for detailed components used in plumbing, electrical, and decorative applications.

Titanium: Combining Strength with Light Weight

Titanium is a marvel in the machining world. Known for its high strength-to-weight ratio and corrosion resistance, it poses unique machining challenges due to its toughness. Our skilled machinists at Brodeur Machine Co. are adept at handling titanium, making us a go-to company for components in aerospace and medical devices.

Copper: Excellent Conductivity and Malleability

Copper is highly valued for its thermal and electrical conductivity. It’s a primary choice for electrical components, heat exchangers, and other applications where heat and electricity play a vital role. Our expertise allows us to machine copper with precision, ensuring high performance in its end use.

Tool Steel: Durable and Wear-Resistant

In applications where durability is key, tool steel is the answer. Known for its hardness and resistance to abrasion, we use tool steel to create long-lasting dies, molds, and cutting tools, ensuring they withstand high-stress conditions.

Magnesium: Lightweight with High Strength-to-Weight Ratio

Magnesium, known for being the lightest structural metal, is gaining popularity for its high strength-to-weight ratio. Its use in automotive and aerospace industries is increasing, and at Brodeur Machine Co., we’re equipped to handle its unique machining requirements.

Plastics and Composite Materials: Modern Alternatives

While metals dominate CNC machining, plastics and composites offer modern alternatives for specific applications. Their lighter weight and flexibility open up new possibilities in industries such as healthcare and consumer electronics.

Factors to Consider When Choosing a Metal

Selecting the right metal for CNC machining is not just about its properties. It’s about matching those properties with the project requirements. At Brodeur Machine Co., we consider factors like strength, weight, corrosion resistance, and cost to recommend the most suitable material for our clients’ needs.


Choosing the right metal for CNC machining is a nuanced decision that can significantly impact the success of a project. At Brodeur Machine Co., our deep understanding of materials, combined with state-of-the-art machining capabilities, positions us to offer unparalleled service in the precision CNC machining industry.

If you’re seeking guidance on the best metal for your CNC machining project or looking for a reliable machining partner, contact Brodeur Machine Co. today at 508-995-2662. Let our expertise guide you to the perfect material choice for your needs.