Custom Machining Materials

Custom Machining Materials

For 14 years, Flourish Legend has established itself as a premier manufacturer specializing in Prototyping, CNC Machining, Tooling, Injection Molding, Sheet Metal Fabrication and Stamping; we can provide various materials and spare parts, common plastic parts materials include: ABS, PC, PMMA (Acrylic), POM (Delrin/Acetal), Nylon, MC Nylon, PVC, Peek, Ptfe etc. Common hardware materials include: Aluminum, Stainless Steel, Tool Steels, Mild Steels, Titanium, Brass, copper, etc.

Our mission has always been to assist customers in designing & prototyping manufacturing high quality parts at competitive prices and fast lead times. Find out now how you and your business can take advantage of our services.

Types of Custom Machining Materials

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Custom Machining Material Selection Guide

As we all know, there are many types of materials that can be used for custom CNC machining. To select materials suitable for products and processes, a basic principle should be followed, that is, the performance of materials must meet the various technical and environmental requirements of the product. When choosing materials, you can consider the following aspects:

Consider Mechanical Properties of CNC Machining Material
Consider Mechanical Properties

It is very important to choose a material with appropriate mechanical properties, which will directly affect the quality and efficiency of processing. The material should have sufficient hardness, strength and wear resistance to adapt to the cutting and processing forces during CNC machining. Commonly used materials with better mechanical properties include aluminum alloys, steel and copper.

Consider Processing Performance of CNC Machining Material
Consider Processing Performance

The processing performance of the material directly affects the stability and efficiency of the processing process. Choosing materials that are easy to cut and machine can reduce machining time and cost and improve machining quality. Generally speaking, materials such as aluminum alloys, brass and plastics have good processing properties and are suitable for CNC machining.

Consider Material Availability And Cost of CNC Machining Material
Consider Material Availability And Cost

Selecting materials that are readily available and cost-effective is an important consideration. Common metallic materials such as aluminum, steel, and copper are readily available and relatively economical. However, exotic materials such as special alloys and composites may be more expensive or harder to obtain.

Consider Surface Quality of CNC Machining Material
Consider The Surface Quality Of The Material

The surface quality of the material is critical for some applications. Some materials may be easier to achieve the desired surface roughness and finish, which is especially important for machining that requires high precision. For example, aluminum alloys have good surface quality and are relatively easy to carry out surface treatments such as polishing and spraying.

Consider The Application Environment Of The CNC Machining Material
Consider The Application Environment Of The Material

Finally, the environmental conditions in which the material will be used should also be considered. Different environmental conditions may have special requirements on the corrosion resistance, high-temperature resistance, or electrical insulation of the material. Ensure that the materials selected are suitable for the intended working environment to avoid unnecessary damage or functional failure.

Benefits of Different Materials in Custom Machining

Benefits of Different Materials in Custom Machining

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Aluminum 7075

Aluminum 7075 is one of the highest-strength aluminum alloys. Unlike 6061, aluminum 7075 has high strength, easy processing, good wear resistance, strong corrosion resistance, and good oxidation resistance. It is the best choice for high-strength entertainment equipment, automobiles, and aerospace frames. Ideal choice.



Nylon is wear-resistant, heat-resistant, chemical-resistant, has certain flame retardancy, and is easy to process. It is a good material for plastics to replace metals such as steel, iron, and copper. The most common applications for CNC machining nylon are insulators, bearings, and injection molds.


Stainless Steel 303

303 stainless steel has good machinability, burning resistance and corrosion resistance, and is used in occasions requiring easy cutting and high surface finish. Commonly used in stainless steel nuts and bolts, threaded medical devices, pump and valve parts, etc. However, it should not be used for marine grade fittings.


Stainless Steel 304

304 is versatile stainless steel with good processability and high toughness. It is also more resistant to corrosion in most normal (non-chemical) environments and is an excellent material choice for use in industry, construction, automotive trim, kitchen fittings, tanks, and plumbing.


Stainless Steel 316

316 has good heat resistance and corrosion resistance, and has good stability in chlorine-containing and non-oxidizing acid environments, so it is generally considered a marine grade stainless steel. It's also tough, welds easily, and is often used in construction and marine fittings, industrial pipes and tanks, and automotive trim.



Another plastic with excellent machinability is PEEK, which has excellent stability and impact resistance. It is often used to manufacture compressor valve plates, piston rings, seals, etc., and can also be processed into internal/external parts of aircraft and many parts of rocket engines. PEEK is the closest material to human bones and can replace metals to make human bones.


ABS Plastic

It has excellent impact strength, good dimensional stability, good dyeability, molding processing and machining, high mechanical strength, high rigidity, low water absorption, good corrosion resistance, simple connection, non-toxic and tasteless, and has excellent chemical properties. High performance and electrical insulation performance; it can withstand heat without deformation, and it is also a hard, scratch-resistant, and non-deformable material.



Brass has the advantages of high strength, high hardness, chemical corrosion resistance, easy processing, etc., and has excellent electrical conductivity, thermal conductivity, ductility, and deep drawability. It is often used in the manufacture of valves, water pipes, connecting pipes for internal and external air conditioners and Radiators, punched products of various complex shapes, small hardware, various parts of machinery and electrical appliances, stamped parts, and musical instrument parts, etc. There are many types of brass, and its corrosion resistance decreases with the increase in zinc content.

FAQs About Custom Machining Materials


Which Materials Are Used In CNC Machining?


CNC machining generally involves using various materials. The choice of materials depends on the desired end product and the application. Here are some common materials used in CNC machining:

Metals: This includes aluminum, steel, stainless steel, copper, brass, titanium, magnesium, and more. Metal materials are widely used in automotive components, aerospace parts, mechanical parts, and other industries.

Plastics: Common plastic materials include polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS), polycarbonate (PC), nylon, and others. Plastic materials are often used for manufacturing prototypes, electronic product casings, plastic parts, and more.

Wood: This includes solid wood, plywood, medium-density fiberboard (MDF), and others. Wood is widely used in furniture manufacturing, architectural decoration, art production, and more.

Composite materials: Composite materials are made by combining two or more different materials and offer excellent performance. Common composite materials include carbon fiber-reinforced polymer (CFRP), glass fiber-reinforced plastic (GFRP), and others.

Additionally, other materials like stone, glass, ceramics, etc., can also be used, but their machining processes and techniques may differ from metals, plastics, and wood. The selection of suitable materials depends on factors such as product design, functional requirements, cost, and availability.


What Are The Advantages And Disadvantages Of Different Materials?


The choice of materials depends on the specific requirements and applications of the prototype model. Factors to consider include strength requirements, durability, appearance, processing difficulty, and cost. Manufacturers typically select the most suitable materials based on these factors for prototype model production. Here are the advantages and disadvantages of different materials:

1. Rapid prototyping materials:

Pros: Fast production speed, low cost, suitable for complex shapes.

Cons: Lower strength, poor durability.

2. ABS plastic:

Pros: Good toughness, impact resistance, and heat resistance, suitable for machining and painting.

Cons: Rough surface, unsuitable for high precision and smooth surface applications.

3. PC (Polycarbonate):

Pros: Excellent mechanical properties, high strength, heat resistance, and transparency.

Cons: Difficult to process, higher cost.

4. PMMA (Polymethyl Methacrylate):

Pros: Transparent, good weather resistance, excellent mechanical properties.

Cons: Poor impact resistance, prone to scratching.

5. Aluminum alloy:

Pros: Excellent strength, corrosion resistance, and thermal conductivity.

Cons: Higher production cost.

Therefore, when selecting materials, it is necessary to consider the specific requirements of the prototype model, including strength requirements, durability, appearance, processing difficulty, and cost factors. Choosing the most suitable material based on the specific situation can ensure that the prototype model meets the expected functionality and quality standards.

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