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Aluminum CNC Machining Supplier in China | Custom Parts Manufacturing Factory
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.
General-Purpose Structural
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
5052-H32
Marine Grade
Offers excellent corrosion resistance (especially in marine environments) and formability. Commonly used for ship and vehicle trim, and electronic enclosures.
Corrosion Resistant
2024-T3/T4
High Fatigue
Provides good fatigue strength and strength-to-weight ratio. Widely used in aircraft structural components, truck wheels, and other high-strength applications.
Aircraft Structural
MIC-6 / Cast Tooling Plate
Precision
A precision-ground, pre-hardened plate with stress-free internal structure, ideal for precision substrates, fixtures, and molds.
Precision Tooling
Frequently Asked Questions
Q
What is the difference between 6061-T6 and 7075-T6 aluminum alloys?
6061-T6 is a general-purpose structural alloy valued 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 with lower corrosion resistance and reduced weldability. 7075-T6 is preferred when maximum strength-to-weight ratio is the top priority, such as in aerospace and high-performance applications.
Q
Which aluminum alloy is best suited for marine or outdoor environments?
5052-H32 is the top choice for marine and outdoor environments due to its outstanding corrosion resistance, especially in saltwater and humid conditions. It also offers excellent formability, making it a popular material for ship components, vehicle trim, and outdoor enclosures.
Q
What does the "T6" or "H32" temper designation mean on aluminum alloys?
Temper designations describe the heat treatment or work-hardening process applied to the alloy. "T6" indicates the alloy has been solution heat-treated and artificially aged to achieve maximum strength. "H32" refers to a strain-hardened and stabilized condition, indicating the material has been work-hardened and then partially annealed for improved ductility and stability.
Q
When should I choose 2024-T3/T4 over other aluminum alloys?
2024-T3/T4 is the preferred choice when fatigue resistance and a high strength-to-weight ratio are critical requirements. It is widely used in aircraft structural components, truck wheels, and other dynamic load-bearing applications where the material is subjected to repeated stress cycles. Note that it has lower corrosion resistance than 5052 or 6061, so surface protection is often recommended.
Q
What makes MIC-6 Cast Aluminum Tooling Plate different from standard aluminum plate?
MIC-6 is a specially cast and precision-ground aluminum plate designed to have a stress-free internal structure and extremely tight flatness tolerances. Unlike standard rolled aluminum plate, MIC-6 does not warp or distort during machining, making it ideal for precision fixtures, molds, substrates, and any application where dimensional stability is critical.
Q
Can you supply both aerospace-grade and commercial-grade aluminum alloy materials?
Yes. We maintain a complete inventory of both aerospace-grade and commercial-grade aluminum alloy materials. Whether your project demands the strict material certifications required for aerospace applications or the cost-effective performance of commercial-grade alloys, we can provide the right material to meet your specifications and budget requirements.
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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