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CNC Machining Metal Service

DEK offers a wide range of metals suitable for CNC machining in a variety of industries, for both one-off prototypes and end-use custom parts.With our high-precision CNC machining centers and industry-leading technology, we can provide cost-effective pricing and fast turnaround for your project, with quick quotes within 6 hours.

Choose our CNC machining metal services,with no minimum order quantity, AS9100D | ISO 9001:2015 | ISO 13485 certified!

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Custom Metal Parts in CNC Machining


DEK is a leading on-demand metal parts manufacturer in China, established in 2002. We have a growing team of specialists focused on their work to ensure the delivery of higher machining accuracy, superior quality and higher productivity.

DEK team has state-of-the-art machining equipment and experienced machinists to perfectly handle custom metal parts with tight tolerances and complex geometries. Our metal machining processes include CNC machining, milling, turning, drilling, EDM and wire cutting, etc., which can cut the required shape, size and surface finish as needed to meet the specifications of product design and engineering drawings.

Our CNC machining metal capabilities include prototyping, small batch production and large-scale production.And we specialize in CNC machining aluminum as well as stainless steel, brass, copper, titanium, magnesium, steel, and other metals. In addition, we can provide surface finishes, such as aluminum anodizing, black oxide, bead blasting, polishing, and plating, to satisfy the diversified needs of customers in different industries for the appearance and performance of custom parts.

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CNC Machining Metal Material List

Alloy Steel

Powerful than carbon steel, more wear-resistant, more tear-resistant. Alloy steel is durable and can withstand high-temperature environments.

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Aluminum is one of the most commonly used metals in the world because of its excellent strength-to-weight ratio, low cost, and recyclability.

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Brass pairs well with various styles. Mixing it with natural materials can create a balanced and sophisticated look. Experiment with different textures for a stylish combination.

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Bronze is a copper-tin alloy with good castability and excellent wear resistance, corrosion resistance and chemical stability. And it is one of the most important metals in manufacturing different products.

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Cast Iron

Cast iron is a group of iron-carbon alloys with a carbon content greater than 2%.It has exceptional durability and heat retention. It is commonly used for cookware.

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Copper is a top choice for electrical wiring and electronics. It's an excellent conductor of electricity and heat. Plus, it's durable and easy to shape.

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Inconel is a group of high-performance alloys made of nickel, chromium, and iron, with additional elements like molybdenum and niobium. These alloys have outstanding resistance to corrosion, oxidation, and high temperatures.

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Invar expands or contracts only slightly when exposed to temperature fluctuations. Its low CTE helps prevent warping, distortion, or other changes in the material's size and shape.

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Kovar is a nickel-cobalt ferrous alloy composed of approximately 29% nickel, 17% cobalt, 54% iron, and small amounts of other elements such as manganese and silicon.

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Magnesium is one of the lightest structural metals. Despite its low density, it provides strength comparable to other structural metals. Plus, it’s a good conductor of electricity and heat.

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Mild Steel

Forging, welding, and machining mild steel are some of DEK’s expertise. Because of mild steel’s high malleability and ductility, it can be easily formed, bent, and stretched without breaking.

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Stainless Steel

Stainless steel is durable, corrosion-resistant, and visually appealing. It's widely used because of its strength, low maintenance, and ability to withstand various temperatures and chemicals.

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Titanium is a well-known metal because of its strength, light weight, and corrosion resistance. This premium material is perfect for aerospace, jewelry, and medical industries.

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Tool Steel

Tool steel is a specialized type of high-quality steel always available from DEK. Get precision cutting tools, dies, molds, and other tools for metalworking and plastic molding.

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Tungsten Steel

Tungsten steel, also known as tungsten carbide, has extremely high hardness, wear resistance, high temperature resistance and good toughness.

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Zinc, a corrosion-resistant metal, is valued for coating and protecting other metals in galvanization.

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Basic Knowledge of CNC Machining Metals

What are Metals?


Metals are a group of elements known for their unique characteristics. They're excellent conductors of electricity and heat, can be shaped without breaking (malleability), and stretched into thin wires (ductility). Metals have a shiny appearance, called metallic luster, and are typically solid at room temperature. Their atoms are arranged in a crystal lattice structure, forming a "sea of electrons" that enables electrical conductivity. Common metals include iron, aluminum, copper, gold, and silver. These materials are used in various industries due to their excellent properties, contributing to advancements in construction, electronics, and transportation.

An alloy is a mix of two or more elements, including at least one metal, with a variable or fixed composition. Combining metals as alloys enhances their properties, making them less brittle, harder, corrosion-resistant, or with improved color and luster. Iron alloys, like steel and stainless steel, dominate in quantity and commercial value. Different ratios of metals produce variations like low-, mid-, and high-carbon steels. Other significant alloys include those of aluminum, titanium, copper, and magnesium, each valued for specific qualities, such as high strength-to-weight ratios.

Advantages of Metals

  • High strength
  • Conductivity
  • Durability
  • Ductility
  • Corrosion resistance
  • Recyclability

Applications of Metals

  • Aluminum: Aircraft frames
  • Kovar: Electronic packaging
  • Cast Iron: Engine blocks
  • Zinc: Galvanized steel
  • Stainless Steel: Kitchen appliances
  • Alloy Steel: Automotive gears
  • Mild Steel: Construction beams
  • Tool Steel: Drill bits
  • Brass: Musical instruments (e.g., trumpets)
  • Bronze: Sculptures
  • Copper: Electrical wiring
  • Invar: Precision instruments
  • Titanium: Aerospace components
  • Inconel: High-temperature applications
  • Magnesium: Lightweight structural components


CNC Machining Metals Buying FAQ

CNC machining can be applied to various metals, including aluminum, steel, stainless steel, brass, copper, and titanium.
CNC machines are not typically used for welding. Welding is a separate process that joins metals by melting and fusing them together, whereas CNC machining involves cutting, milling, or drilling.
Titanium is often considered one of the most difficult metals to machine due to its high strength, low thermal conductivity, and chemical reactivity.
Aluminum is one of the easiest metals to machine due to its softer and more malleable properties than other metals like titanium or stainless steel.

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