Custom CNC Metal Parts

Precision CNC Machined Metal Parts

Custom metal components machined from aluminum, stainless steel, carbon and alloy steel, brass, copper, titanium, magnesium, and more. From prototypes to production parts, CNCTAL supports complex geometries, tight tolerances, and application-specific material requirements.

Aluminum Stainless Steel Steel Brass Copper Titanium Magnesium
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Prototype to production
Precision up to ±0.01 mm
Material & DFM support
Custom CNC machined metal parts in aluminum stainless steel brass copper titanium and other metals
Custom machining for engineering applications — CNC milling, turning, 5-axis machining, EDM, and secondary finishing.
Metal Materials Overview

Explore the Metal Materials We Machine

CNCTAL machines a wide range of metal materials for custom parts, prototypes, and low-volume production. From lightweight aluminum to high-strength steel and corrosion-resistant titanium, we help you choose the right material for performance, cost, and application needs.

Aluminum

Lightweight, easy to machine, and corrosion-resistant. Ideal for housings, brackets, frames, enclosures, and precision structural parts.

6061 6063 7075
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Stainless Steel

Strong, wear-resistant, and corrosion-resistant. Suitable for industrial equipment, medical devices, fixtures, shafts, and demanding functional components.

304 316 17-4PH
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Carbon Steel

Cost-effective and durable for structural parts, machine components, fixtures, and general industrial applications requiring reliable strength.

1018 1045 A36
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Alloy Steel

Offers improved toughness, wear resistance, and mechanical performance for gears, shafts, tooling parts, and heavy-duty machined components.

4140 4340 8620
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Magnesium

Magnesium is a lightweight, high-strength material used in automotive and aerospace applications.

AZ31B AZ61A
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Brass

Excellent machinability and good corrosion resistance. Often used for fittings, valves, connectors, inserts, decorative parts, and electrical components.

C360 C260 C272
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Copper

Known for high electrical and thermal conductivity. Suitable for electrical contacts, heat transfer parts, busbars, and custom conductive components.

C101 C110 C145
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Titanium

Lightweight, high-strength, and highly corrosion-resistant. Ideal for aerospace, UAV, medical, marine, and high-performance engineering applications.

Grade 2 Grade 5 Ti-6Al-4V
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Need help selecting the right metal for your part? Our engineers can recommend a suitable material based on strength, weight, corrosion resistance, surface finish, and cost targets.

Why CNC Metal Parts

Why Metal Materials Are Widely Used for CNC Machined Parts

CNC machined metal parts are widely selected for applications that require strength, stability, durability, and long-term performance. From lightweight aluminum components to high-strength steel and corrosion-resistant titanium, metal materials provide reliable solutions for industrial and precision manufacturing.

Reliable Performance for Structural and Functional Parts

Metal materials are often the first choice for custom CNC parts when customers need strong mechanical performance, dimensional stability, and dependable service life. Compared with plastics, metals are better suited for load-bearing structures, wear-resistant parts, heat-resistant components, and precision assemblies.

At CNCTAL, we machine a wide range of metals to meet different project needs, whether you need lightweight housings, durable machine parts, conductive copper components, or high-strength titanium parts for demanding industries.

High Strength & Rigidity Suitable for brackets, shafts, fixtures, frames, and demanding structural components.
Better Heat & Wear Resistance Ideal for industrial parts exposed to friction, pressure, or elevated operating temperatures.
Corrosion Resistance Options Available materials such as aluminum, stainless steel, brass, and titanium perform well in harsh environments.
Wide Surface Finish Compatibility Supports anodizing, plating, polishing, brushing, powder coating, and other post-processing options.

Material Flexibility

Different metals offer different benefits in weight, strength, machinability, conductivity, and corrosion resistance, making CNC metal machining suitable for many industries and product types.

Precision Manufacturing

CNC machining makes it possible to produce tight-tolerance metal parts with accurate dimensions, clean details, and repeatable quality for prototypes and low-volume production.

Fit for Many Applications

Metal CNC parts are commonly used in robotics, automation equipment, automotive systems, electronics, aerospace, medical devices, and custom machinery projects.

Featured Metal Materials

Popular Metals for Custom CNC Machined Parts

Material selection affects machinability, strength, weight, corrosion resistance, conductivity, and final part cost. These are four of the most frequently requested metals for custom CNC components across industrial and engineering applications.

Custom CNC machined aluminum parts 01

Aluminum CNC Parts

Lightweight

Aluminum combines low weight, excellent machinability, good corrosion resistance, and broad finishing options. It is a practical choice for both prototypes and production components.

Common Grades 6061, 6063, 6082, 7075
Typical Applications Housings, brackets, frames, robotics parts, UAV components
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Custom CNC machined stainless steel parts 02

Stainless Steel CNC Parts

Corrosion Resistant

Stainless steel is widely used where mechanical strength, dimensional stability, wear resistance, and reliable corrosion performance are important.

Common Grades 303, 304, 316, 17-4PH
Typical Applications Shafts, fixtures, equipment parts, medical and marine components
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Custom CNC machined brass parts and fittings 03

Brass CNC Parts

Highly Machinable

Brass machines efficiently and produces clean surfaces with good dimensional consistency. It is particularly suitable for precision turned parts, fittings, connectors, and inserts.

Common Grades C360, C260, C272
Typical Applications Fittings, inserts, connectors, valves, electrical hardware
Explore Brass Parts
Custom precision CNC machined titanium parts 04

Titanium CNC Parts

High Performance

Titanium provides an excellent strength-to-weight ratio and strong corrosion resistance for demanding parts where durability and weight reduction are critical.

Common Grades Grade 2, Grade 5, Ti-6Al-4V
Typical Applications Aerospace, UAV, marine, medical and high-performance components
Explore Titanium Parts

Need another metal? CNCTAL also machines carbon steel, alloy steel, copper, magnesium, bronze, and other engineering metals based on drawing requirements and application needs.

View All Metal Options
Material Selection Guide

How to Choose the Right Metal for Your CNC Part

Selecting the right metal material is an important step in CNC machining. The best option depends on your part’s strength requirements, weight target, corrosion resistance, surface finish needs, and project budget. A suitable material choice can improve performance, reduce machining cost, and support long-term product reliability.

Choose Based on Function, Environment, and Cost

Not every CNC metal part requires the same material. Lightweight parts may benefit from aluminum, while high-load or wear-resistant components may be better suited for steel. For corrosive environments, stainless steel or titanium can provide better long-term durability. Brass and copper are often selected when machinability or conductivity is important.

At CNCTAL, we help customers compare material options based on actual part usage, machining difficulty, finishing requirements, and target price. This helps avoid over-specifying expensive materials or choosing a metal that does not match the application.

Strength Requirement Choose steel or titanium for higher mechanical loads, while aluminum fits many lightweight structural parts.
Weight Target Aluminum and titanium are preferred when reducing part weight is important for system performance.
Corrosion Resistance Stainless steel, aluminum, brass, and titanium are good options for humid, outdoor, or chemical environments.
Machining Cost Some metals machine faster and more economically, while harder alloys may increase cycle time and tooling cost.
Conductivity Needs Copper and brass are commonly used when electrical or thermal conductivity is required.
Surface Finish Plan Consider whether the part needs anodizing, polishing, brushing, plating, or powder coating after machining.

Common Material Matching Logic

  • Choose aluminum for lightweight parts, enclosures, brackets, and general precision components.
  • Choose stainless steel for corrosion resistance, strength, and industrial durability.
  • Choose carbon or alloy steel for structural strength and cost-effective machine parts.
  • Choose brass for fittings, inserts, connectors, and excellent machinability.
  • Choose copper for electrical contacts, conductive parts, and heat transfer components.
  • Choose titanium for premium high-strength, lightweight, and corrosion-resistant applications.

Need Help Choosing a Material?

If you are not sure which metal grade is best for your project, our engineering team can recommend a suitable option based on your drawing, application, tolerance, and finishing requirements.

Share Your Drawing for Material Advice

We can help you compare material options and suggest a practical choice for cost, performance, and machining efficiency.

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Materials × Industries Application Guide

Different industries place unique demands on material performance. Below is a practical guide to help you quickly identify suitable CNC machining materials based on your industry and application requirements.

Aerospace

  • Titanium alloys for lightweight, high-strength components
  • Aluminum for structural and non-critical aerospace parts
  • Stainless steel for corrosion-resistant fittings
Titanium Aluminum Stainless Steel

Medical Devices

  • Titanium for implants and surgical instruments
  • Stainless steel for durable, sterilizable components
  • Engineering plastics for lightweight housings
Titanium Stainless Steel Plastic

Automotive

  • Aluminum for lightweight and heat-dissipating parts
  • Carbon steel for structural and load-bearing components
  • Alloy steel for gears and drivetrain parts
Aluminum Carbon Steel Alloy Steel

Industrial Equipment

  • Carbon steel for frames, brackets, and shafts
  • Alloy steel for wear-resistant parts
  • Stainless steel for harsh environments
Carbon Steel Alloy Steel Stainless Steel

Electronics

  • Aluminum for enclosures and heat sinks
  • Copper for electrical and thermal conductivity
  • Plastic for insulation and lightweight parts
Aluminum Copper Plastic

Energy & Power

  • Stainless steel for corrosion and pressure resistance
  • Alloy steel for high-load mechanical components
  • Titanium for extreme environments
Stainless Steel Alloy Steel Titanium

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