As a buyer, when you invest in custom CNC parts, one crucial factor you must consider is the material from which these parts are made. The right material can dramatically improve the performance and longevity of your component, while the wrong choice can lead to inefficiencies or even part failure. With numerous options available, how do you determine the best material for your CNC parts? This blog post is designed to assist you in making that essential decision.
Understanding CNC Materials: The Basics
Every project has specific needs and demands that dictate the kind of material to use. CNC parts manufacturers often have a wide range of materials to choose from, each with its unique properties. Some common CNC materials include metals like aluminum and steel, plastics such as ABS and polycarbonate, and exotic materials like titanium and Inconel.
The key lies in understanding the properties of each material and how they correlate with your project's requirements. Factors like strength, durability, machinability, cost, and aesthetics can significantly impact your decision.




AL2024 | C37700 | SS201 | Q235 | POM |
AL5052 | C36000 | SS301 | Q345B | PEEK |
AL6061 | C35000 | SS303 | 12L14 | PVC |
AL6063 | C28000 | SS304 | 45# | Teflon |
AL6082 | C34000 | SS316 | 1018 | Nylon |
AL7075 | C27000 | SS416 | 4140/4130 | Delrin |
More… | More… | More… | More… | More… |
Metals or Plastics: Making the Right Choice for Your Custom CNC Parts
When it comes to CNC machining, metals and plastics are the two main categories of materials. Metal parts are known for their strength, durability, and high-temperature resistance. They are ideal for applications where these properties are crucial, such as in the automotive and aerospace sectors. Aluminum, for example, is lightweight yet sturdy, making it an excellent choice for various applications.
On the other hand, plastic CNC parts offer excellent electrical insulation, lower weight, and a higher resistance to corrosion. They are often less expensive than their metal counterparts, making them an economical choice for specific applications. ABS, for example, combines strength and flexibility, making it suitable for parts like enclosures and automotive components.



High-Performance Materials: Exploring Exotic Options for Custom CNC Parts
Beyond the traditional metal and plastic options, there's an array of high-performance materials that might suit your needs. These are typically used in applications where standard materials can't withstand the environmental conditions or meet the performance requirements.
Titanium, for example, has a high strength-to-weight ratio and is resistant to corrosion, making it suitable for medical implants or aerospace components. Inconel, another exotic material, can withstand extreme heat and pressure, making it ideal for jet engine components.
Rally: Your Trusted CNC Parts Manufacturer for Quality Custom CNC Parts
Here at Rally, we understand that choosing the right material for your custom CNC parts is a crucial decision. As a leading CNC parts manufacturer, we are committed to providing you with the best advice and the highest quality products. With our extensive range of materials and industry expertise, we can help guide you to the perfect material for your specific needs.
In conclusion, the material you choose for your custom CNC parts can significantly influence their performance and longevity. By understanding the properties and benefits of various materials, you can make an informed choice that aligns with your project's requirements. Remember, the decision does not have to be overwhelming. At Rally, we are always ready to lend our expertise and guide you through the process, ensuring your project's success.