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Aluminum CNC Machining Services from China: Leading Suppliers and Factory for High-Quality Precision Parts
We maintain a complete inventory of aerospace-grade and commercial-grade aluminum alloy materials to ensure the best performance and cost suitability:
Common Aluminum Alloy Material Library
6061-T6
Most Versatile
The most versatile structural alloy, offering excellent machinability, weldability, and corrosion resistance. Suitable for most mechanical components, tooling fixtures, and enclosures.
✔ Machinability
✔ Weldability
✔ Corrosion Resistance
7075-T6
Ultra High Strength
An ultra-high-strength aluminum alloy with strength comparable to many steels. An ideal choice for aerospace, high-performance sporting goods, and critical load-bearing structures.
✔ Aerospace Grade
✔ Steel-Level Strength
✔ Load-Bearing
5052-H32
Marine Grade
Offers excellent corrosion resistance (especially in marine environments) and formability. Commonly used for ship and vehicle trim, and electronic enclosures.
✔ Marine Environments
✔ Formability
✔ Electronics
2024-T3/T4
High Fatigue Strength
Provides good fatigue strength and strength-to-weight ratio. Widely used in aircraft structural components, truck wheels, and other high-strength applications.
✔ Fatigue Strength
✔ Aircraft Structures
✔ High Strength-to-Weight
MIC-6 / Cast Aluminum Tooling Plate
Precision Grade
A precision-ground, pre-hardened plate with stress-free internal structure, ideal for precision substrates, fixtures, and molds.
✔ Precision Ground
✔ Pre-Hardened
✔ Stress-Free Structure
✔ Fixtures & Molds
Frequently Asked Questions
Q
What is the difference between 6061-T6 and 7075-T6 aluminum alloys?
6061-T6 is a general-purpose structural alloy known for its excellent machinability, weldability, and corrosion resistance, making it suitable for a wide range of applications. 7075-T6, on the other hand, offers significantly higher strength — comparable to many steels — but is less weldable. It is preferred for aerospace and high-stress structural applications where maximum strength is critical.
Q
Which aluminum alloy is best for marine or outdoor environments?
5052-H32 is the top choice for marine and outdoor environments due to its outstanding corrosion resistance, particularly against saltwater and moisture. It also offers excellent formability, making it ideal for ship components, vehicle trim, and outdoor enclosures.
Q
What makes MIC-6 / Cast Aluminum Tooling Plate unique compared to other aluminum alloys?
MIC-6 is a precision-ground, pre-hardened cast aluminum plate specifically designed for tooling and fixture applications. Its stress-free internal structure ensures exceptional dimensional stability, making it ideal for precision substrates, jigs, fixtures, and molds where tight tolerances are required.
Q
Is 2024-T3/T4 aluminum suitable for aircraft structural components?
Yes, 2024-T3/T4 is widely used in aircraft structural components due to its excellent fatigue strength and high strength-to-weight ratio. It is one of the most commonly specified alloys in the aerospace industry, as well as in truck wheels and other demanding high-strength applications.
Q
Can I use 6061-T6 aluminum for welded assemblies?
Absolutely. 6061-T6 is one of the most weldable aluminum alloys available, making it an excellent choice for welded assemblies, frames, enclosures, and tooling fixtures. Its combination of good weldability, corrosion resistance, and machinability makes it the most versatile structural aluminum alloy in our material library.
Q
How do I choose the right aluminum alloy for my project?
Choosing the right aluminum alloy depends on your specific requirements: for general machined parts and enclosures, 6061-T6 is the most practical choice; for maximum strength in aerospace or high-load applications, consider 7075-T6 or 2024-T3/T4; for marine or corrosive environments, 5052-H32 is recommended; and for precision tooling and fixtures, MIC-6 Cast Aluminum Tooling Plate offers the best dimensional stability. Our team is available to help you select the most suitable material for your application.
Finishes and Post-Processing Options
The zinc alloy substrate is highly suitable for various surface treatments to enhance decoration, protection, or functionality:
Electroplating: Such as chrome, nickel, gold, or silver plating, providing a highly decorative appearance, excellent wear and corrosion resistance. This is the most common choice.
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Passivation or Chromate Conversion Coating:
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Powder Coating:
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Painting:
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Physical Vapor Deposition (PVD):
Design and Machining Considerations
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Process Selection:
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Design Considerations:
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Material Selection:
Zamak 3 and 5 are suitable for the vast majority of general-purpose parts requiring good appearance and strength; ZA-8 is better for wear and bearing applications; for making rapid tooling, choose specialized alloys like Kirksite.
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