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GR5 (Ti-6Al-4V) Titanium Alloy Rod
A high-strength, corrosion-resistant α+β alloy widely used in aerospace, medical, and industrial applications.
- Superior Strength-to-Weight Ratio: 60% lighter than steel with comparable strength.
- Excellent Corrosion Resistance: Resists oxidation, seawater, and chemical media.
- Biocompatibility: Ideal for medical implants (e.g., joint replacements).
- Wide Temperature Range: Stable performance from -196°C to 400°C.
- Machinability & Weldability: Supports precision machining and welding with minimal cracking risk.
Chemical Composition (wt%)
Element | Content (wt%) | Role |
Ti | Balance | Base material |
Al | 5.5–6.8 | α-phase stabilizer, enhances strength |
V | 3.5–4.5 | β-phase stabilizer, improves ductility |
Fe | ≤0.30 | Impurity control |
C | ≤0.10 | Prevents brittleness |
O | ≤0.20 | Controls interstitial strength |
N | ≤0.05 | Minimizes nitride formation |
H | ≤0.015 | Avoids hydrogen embrittlement |
Surface Treatment
- Polishing: Mirror finish for medical/optical applications.
- Anodizing: Enhances wear resistance and color coding.
- Passivation: Acid wash to improve corrosion resistance.
Characteristics of GR5 Titanium Alloy Rods
GR5 titanium alloy (Ti-6Al-4V) is an α-β duplex alloy composed of 90% titanium, 6% aluminum, and 4% vanadium. Its characteristics include:
1. High Strength and Lightweight: With a tensile strength exceeding 895 MPa and a density of only 4.4 g/cm³, its specific strength (strength/density) is significantly higher than that of steel and aluminum alloys.
2. Corrosion Resistance: A dense oxide film forms on the surface, providing excellent performance in seawater and acidic and alkaline environments, with an annual corrosion rate of less than 0.025 mm.
3. Processability: Despite its low thermal conductivity (one-fifth that of iron), it can be formed through processes such as hot forging and rolling, requiring specialized tools to minimize wear.
Performance Parameters
1. Mechanical Properties: High yield strength at room temperature, with an elastic modulus of approximately 110 GPa (half that of steel). It is easily deformable but can be strengthened through heat treatment. 2. Thermal Properties: Long-term operating temperature of 400°C, short-term resistance to 700-750°C, and plasticity at low temperatures (-196°C).
3. Biocompatibility: Non-toxic, suitable for medical implants such as artificial joints and dental prostheses.
Main Applications
1. Aerospace: Manufacturing engine compressor blades and fuselage structural components to reduce weight and improve fuel efficiency.
2. Medical: Orthopedic implants and dental implants due to their biocompatibility and resistance to body fluid corrosion.
3. Industrial Applications: Chemical equipment, pressure-resistant components for marine engineering, and high-end sports equipment (such as golf clubs).
4. Other Applications: Lightweight automotive components, deep-sea exploration equipment, etc.
Summary
GR5 titanium alloy rods, due to their exceptional strength, corrosion resistance, and versatility, have become a core material in the aerospace, medical, and high-end industrial sectors. Despite their higher cost, their comprehensive performance is irreplaceable.
Why Choose Us ?
- Certified Quality: ASTM B348, AMS4928, ISO 5832-3 compliant.
- Custom Sizes: Diameter 3–280 mm, lengths tailored to needs.
- Advanced Processing: Triple vacuum arc remelting (VAR) ensures purity.
- Global Supply: 24/7 logistics support with anti-rust packaging.
Applications & Industries
Aerospace:
Used for manufacturing aircraft structural components, engine parts, and propeller blades
Medical:
Applied in implants (e.g., artificial joints, bone plates) and surgical instruments due to its biocompatibility and corrosion resistance.
Industrial:
Utilized in heat exchangers, chemical processing equipment, and marine applications for its corrosion resistance and high strength.
Frequently Asked Questions
Q: What’s the maximum operating temperature?
A: 400°C long-term; 750°C short-term.
Q: How to prevent contamination during machining?
A: Use low-speed tools with coolant; avoid iron-based tooling.
Q: Can GR5 be welded?
A: Yes, via TIG or plasma welding under argon shield.
Q: What are the primary applications of GR5 bars?
Aerospace: Engine components, structural fasteners.
Medical: Orthopedic implants, dental fixtures.
Marine: Submarine parts, offshore equipment.
Q: What standards apply to GR5 titanium alloy rods?
A: GR5 rods comply with international standards such as:
- ASTM: Grade 5 (Ti-6Al-4V).
- GB/T: Chinese standards for titanium alloy bars (e.g., GB/T 3620.1 for chemical composition).
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