Titanium Bars&Rods

Titanium Rod Detailed Explanation

1. Definition and Material Properties

• Composition: Titanium rods are primarily made of pure titanium (Ti) or titanium alloys, with common alloys such as Ti-6Al-4V (containing 6% aluminum and 4% vanadium).

• Properties:

• High Strength-to-Density Ratio: High tensile strength (pure titanium: 240–550 MPa; Ti-6Al-4V up to 1000 MPa), with a density of 4.5 g/cm³ (~60% that of steel).

• Corrosion Resistance: Forms a stable TiO₂ oxide layer, resistant to seawater, chloride ions, acids, and alkalis.

• Biocompatibility: Non-toxic and compatible with human tissues, ideal for medical implants.

• Temperature Resistance: Operates in extreme temperatures (-250°C to 600°C), but requires anti-oxidation measures at high temperatures.

2. Production Processes

• Melting: Vacuum Arc Remelting (VAR) or Cold Hearth Melting to minimize impurity contamination.

• Forming:

• Forging: Enhances grain structure and mechanical properties.

• Rolling/Extrusion: Produces long rods with precise diameter control.

• Drawing: Used for small-diameter rods to improve surface finish.

• Heat Treatment: Annealing relieves stress; solution treatment and aging optimize alloy performance.

3. Applications

• Aerospace: Aircraft landing gear, engine compressor blades (weight reduction >30%).

• Medical: Artificial joints, bone screws, dental implants (bone integration rate up to 95%).

• Chemical Industry: Reactors, heat exchangers (resistant to HCl, H₂SO₄ environments).

• Sports Equipment: Bicycle frames (20%–30% lighter), golf club heads.

• Marine Engineering: Submarine components, desalination systems.

4. Specifications and Standards

• Dimensions: Diameter 1–300 mm, length up to 6 meters (customizable to 12 meters).

• Standards:

• International: ASTM B348 (titanium rods), AMS 4928 (aerospace-grade Ti-6Al-4V).

• China: GB/T 2965-2020 (titanium and titanium alloy rods).