Specifications
Titanium 6AL-7Nb wire, also known as Ti-6Al-7Nb, is a titanium alloy primarily composed of 90% titanium, 6% aluminum (Al), and 7% niobium (Nb).
Titanium 6AL-7Nb wire combines the lightweight and corrosion-resistant properties of titanium with the strength and stability of niobium and aluminum. Its mechanical properties, biocompatibility, and resistance to high temperatures and corrosion make it a popular choice for high-performance aerospace, medical, and industrial applications.medical applications
Material Composition
|
Component |
Content |
|
Titanium (Ti) |
87 %-91% |
|
Aluminum (Al) |
6% |
|
Niobium (Nb) |
7% |
|
Trace Elements |
Small amounts of oxygen, carbon, and iron may also be present. |
Mechanical Properties
|
Mechanical Properties |
Data |
|
Tensile Strength |
Between 900–1100 MPa |
|
Yield Strength |
Approximately 850–1000 MPa |
|
Elongation |
10–20% |
|
Modulus of Elasticity |
Approximately:110-120 GPa (gigapascals) |
|
Hardness |
Around 320–370 HB |
Diameter (Gauge)
The wire is available in a wide range of diameters to suit different applications:
- Fine wire: 0.1 mm – 1.0 mm (used in medical and precision applications).
- Medium wire: 1.0 mm – 3.0 mm.
- Thick wire: 3.0 mm – 6.0 mm or larger for structural or aerospace components.
The diameter is usually specified in millimeters (mm) or gauge sizes (AWG).
Surface Finish
Annealed (bright finish)
After heat treatment, Ti-6Al-7Nb wire often has a smooth, bright surface which is important for medical implants or high-precision applications.
Cold-drawn
Can have a matte finish or slightly rougher surface, depending on the drawing process.
Polished
Used when the wire is meant for high-end or aesthetic applications, such as implants or decorative components.
Corrosion Resistance
Titanium 6AL-7Nb offers excellent corrosion resistance in a wide range of environments, including:
Aqueous environments (including seawater).
High-temperature gases.
This property makes it suitable for marine, medical, and aerospace applications where exposure to harsh environments is common.
Biocompatibility
Biocompatibility is one of the key features of Titanium 6AL-7Nb wire. It is widely used in medical implants (such as bone screws, plates, and dental implants) due to its low toxicity, ability to bond well with bone tissue, and resistance to body fluids.
Melting Point
The melting point of Titanium 6AL-7Nb is approximately 1,650°C (3,002°F), which is typical for titanium alloys.
Applications
- Aerospace: Due to its strength-to-weight ratio and high resistance to corrosion and fatigue, this alloy is often used in aerospace components such as turbine engines and structural parts.
- Medical: Widely used in surgical implants like bone plates, screws, and artificial joints, as well as in dental applications.
- Marine: Used in marine environments due to its resistance to seawater corrosion.
- Chemical Processing: Ideal for use in equipment exposed to corrosive chemicals or environments.
Packaging and Length
The wire is usually supplied in coils or spools of various lengths (from a few meters to kilometers).
Custom lengths and packaging options are available for specific applications.
Standards
ASTM B348 and AMS 4931 are common standards for titanium 6AL-7Nb wire.
Summary
Titanium 6AL-7Nb wire combines the lightweight and corrosion-resistant properties of titanium with the strength and stability of niobium and aluminum. Its mechanical properties, biocompatibility, and resistance to high temperatures and corrosion make it a popular choice for high-performance aerospace, medical, and industrial applications.
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