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China Titanium CNC Machining Factory: Custom Parts from Trusted Suppliers for Aerospace & Medical Applications
Titanium Alloy CNC Machining
Titanium is a high-performance metal with strength comparable to many steels but a density only about 60% that of steel. This unparalleled strength-to-weight ratio, combined with its outstanding corrosion resistance in harsh environments (such as seawater and bodily fluids), makes it the ideal choice for demanding applications. Our Instant Quoting Engine supports CNC machining for various titanium alloys.
Titanium Grade 2 CP Ti · Gr.2
Titanium Grade 2 is commercially pure titanium, offering the best formability, weldability, and excellent corrosion resistance among titanium alloys. While its strength is lower than Grade 5, its superb biocompatibility and corrosion resistance make it widely popular in chemical processing, marine, and medical (non-implant) fields.
Typical Applications
Chemical processing equipment components, piping for desalination systems, medical device housings, non-load-bearing aerospace structures.
Titanium Grade 2 Typical Properties (Annealed)
| Property | Value | Notes |
|---|---|---|
| Yield Strength (MPa) | ≥ 275 | Good balance of ductility and strength |
| Tensile Strength (MPa) | ≥ 345 | |
| Elongation at Break (%) | ≥ 20 | Excellent ductility |
| Hardness (Vickers) | ~ 150 | |
| Density (g/cm³) | 4.51 | ~40% lighter than steel |
| Generalized values. Specific properties depend on heat treatment and specification. | ||
Titanium Grade 5 Ti-6Al-4V · Gr.5
Titanium Grade 5 (Ti-6Al-4V) is the most commonly used and representative alpha-beta titanium alloy, often called the "workhorse alloy." It provides an extremely high strength-to-weight ratio and excellent fatigue strength while maintaining good corrosion resistance, making it the primary choice for critical applications requiring both lightweight and high strength.
Typical Applications
Aerospace structural components (airframe, landing gear), aircraft engine parts, high-performance automotive racing components, surgical implants (joints, bone plates), high-end sporting equipment.
Titanium Grade 5 Typical Properties (Solution Treated and Aged)
| Property | Value | Notes |
|---|---|---|
| Yield Strength (MPa) | ≥ 828 | Strength significantly exceeds Grade 2 |
| Tensile Strength (MPa) | ≥ 895 | |
| Elongation at Break (%) | ≥ 10 | Maintains good plasticity at ultra-high strength |
| Hardness (Rockwell C) | ~ 36 | |
| Density (g/cm³) | 4.43 | Similar to Grade 2 |
| Generalized values. Specific properties depend on heat treatment and specification. | ||
Frequently Asked Questions
Q What is the difference between Titanium Grade 2 and Grade 5?
Titanium Grade 2 is commercially pure titanium, valued for its excellent formability, weldability, and corrosion resistance. Grade 5 (Ti-6Al-4V) is an alpha-beta alloy with significantly higher strength — over three times the yield strength of Grade 2 — making it suitable for structural and load-bearing applications where both low weight and high strength are critical.
Q Which titanium alloy is better for medical implants?
Titanium Grade 5 (Ti-6Al-4V) is widely used for surgical implants such as bone plates and joint replacements due to its high strength and good biocompatibility. Grade 2 is preferred for non-implant medical device housings and components where formability and corrosion resistance are the priority.
Q Is titanium difficult to CNC machine compared to steel?
Titanium is generally more challenging to machine than most steels due to its low thermal conductivity, tendency to work-harden, and chemical reactivity with cutting tools at high temperatures. Proper tooling selection, cutting parameters, and coolant strategies are essential for achieving precise results and good surface finish.
Q What surface finishes are available for CNC machined titanium parts?
CNC machined titanium parts can be finished with as-machined, bead blasted, anodized (Type II or Type III), polished, or passivated surfaces. Anodizing titanium produces a range of colors through oxide layer thickness variation, which is popular for both functional and aesthetic purposes.
Q Why is titanium preferred in aerospace applications?
Titanium offers an exceptional strength-to-weight ratio — comparable in strength to many steels but approximately 40% lighter. Combined with excellent fatigue resistance and corrosion resistance at elevated temperatures, titanium alloys such as Grade 5 are ideal for airframe structures, engine components, and landing gear where weight savings directly impact fuel efficiency and performance.
Q Can I get an instant quote for titanium CNC machined parts?
Yes. Our Instant Quoting Engine supports CNC machining for various titanium alloys including Grade 2 and Grade 5. Simply upload your CAD file, select your material and finish, and receive a competitive quote within seconds.
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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