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China Titanium CNC Machining Factory: Custom Parts Suppliers for Aerospace, Medical, and Industrial Applications
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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) Commercially Pure
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) Most Popular
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
What is the difference between Titanium Grade 2 and Grade 5?
Titanium Grade 2 is commercially pure titanium, prized for its excellent formability, weldability, and corrosion resistance. Grade 5 (Ti-6Al-4V) is an alpha-beta alloy with significantly higher strength (yield strength ≥ 828 MPa vs. ≥ 275 MPa) and fatigue resistance, making it suitable for more demanding structural and aerospace applications.
Is titanium suitable for CNC machining?
Yes, titanium alloys can be CNC machined, but they require specialized tooling, optimized cutting parameters, and proper coolant strategies due to their low thermal conductivity and tendency to work-harden. Experienced CNC service providers can achieve tight tolerances and excellent surface finishes on both Grade 2 and Grade 5 titanium.
Which titanium grade is best for medical implants?
Titanium Grade 5 (Ti-6Al-4V) is widely used for load-bearing surgical implants such as joint replacements and bone plates due to its high strength and biocompatibility. Grade 2 is preferred for non-load-bearing medical device housings and components where superior corrosion resistance and formability are required.
How does titanium compare to stainless steel in terms of weight?
Titanium has a density of approximately 4.43–4.51 g/cm³, which is roughly 40% lighter than stainless steel (approximately 7.9 g/cm³). Despite this significant weight advantage, titanium maintains comparable or superior strength, making it ideal for weight-critical applications in aerospace, automotive, and medical industries.
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), electropolishing, and passivation. The choice of finish depends on the application requirements, such as aesthetics, corrosion resistance, or biocompatibility standards.
Can I get an instant quote for titanium CNC machining?
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. Our team is also available to assist with design for manufacturability (DFM) feedback.
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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