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China Titanium CNC Machining Factory: Custom Titanium Parts from Top Suppliers with Rapid Prototyping Services
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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 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.
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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.
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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
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What is the main difference between Titanium Grade 2 and Grade 5?
Titanium Grade 2 is commercially pure titanium, prized for its excellent corrosion resistance, formability, and biocompatibility, but with lower strength. Grade 5 (Ti-6Al-4V) is an alpha-beta alloy offering significantly higher yield and tensile strength, making it suitable for critical structural and high-load applications such as aerospace and surgical implants.
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Is titanium difficult to CNC machine compared to steel or aluminum?
Yes, titanium is generally more challenging to machine than aluminum and many steels. It has low thermal conductivity, which causes heat to concentrate at the cutting tool, and it tends to work-harden during machining. Specialized tooling, optimized cutting parameters, and adequate coolant are essential for achieving accurate and efficient results.
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Which titanium grade is best for medical implants?
Titanium Grade 5 (Ti-6Al-4V) is the most widely used alloy for load-bearing surgical implants such as hip joints, knee replacements, and bone plates, due to its high strength and excellent biocompatibility. Titanium Grade 2 is also biocompatible but is typically used for non-load-bearing medical device components and housings.
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What surface finishes are available for CNC machined titanium parts?
CNC machined titanium parts can be finished in a variety of ways, including as-machined, bead blasting, anodizing (Type II or Type III), passivation, polishing, and electropolishing. The choice depends on the application requirements such as aesthetics, corrosion protection, or surface roughness specifications.
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Why is titanium preferred in aerospace applications?
Titanium offers an exceptional strength-to-weight ratio — comparable in strength to many steels at only about 60% of the weight. Combined with outstanding fatigue resistance and the ability to withstand extreme temperatures, it is ideal for airframe structures, engine components, and landing gear where minimizing weight without sacrificing structural integrity is critical.
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How do I get an instant quote for titanium CNC machining?
You can use our Instant Quoting Engine by uploading your CAD file (STEP, IGES, or similar formats), selecting your desired titanium grade (Grade 2 or Grade 5), specifying tolerances, surface finish, and quantity. The system will automatically analyze your design and provide 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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