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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 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
What is the strength-to-weight ratio of Titanium compared to steel?
Titanium has a strength comparable to many steels, but its density is only about 60% of steel, providing an unparalleled strength-to-weight ratio.
What are the key characteristics of Titanium Grade 2?
Titanium Grade 2 is commercially pure titanium offering the best formability, weldability, and excellent corrosion resistance. While it has lower strength than Grade 5, it offers superb biocompatibility.
Where is Titanium Grade 2 typically used?
It is commonly used in chemical processing equipment components, piping for desalination systems, medical device housings, and non-load-bearing aerospace structures.
Why is Titanium Grade 5 referred to as the "workhorse alloy"?
Titanium Grade 5 (Ti-6Al-4V) is the most commonly used alpha-beta titanium alloy because it provides an extremely high strength-to-weight ratio, excellent fatigue strength, and good corrosion resistance.
What are the typical applications of Titanium Grade 5?
Typical applications include aerospace structural components (airframe, landing gear), aircraft engine parts, high-performance automotive racing components, surgical implants (joints, bone plates), and high-end sporting equipment.
How do the yield strengths of Titanium Grade 2 and Grade 5 compare?
Titanium Grade 2 has a yield strength of ≥ 275 MPa, whereas Titanium Grade 5 features a significantly higher yield strength of ≥ 828 MPa.
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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