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Rison Titanium GR5 Titanium Alloy – Technical Overview
GR5 (Grade 5) is the most widely used titanium alloy, with a nominal composition of Ti-6Al-4V
(6% aluminum, 4% vanadium). What’s more, It is an alpha-beta (α-β) alloy that offers an
excellent balance of strength, corrosion resistance, and lightweight properties and so on.
1. Composition & Standards
| Element | Content (wt%) | Role |
|---|---|---|
| Titanium (Ti) | Balance | Base material |
| Aluminum (Al) | 5.5–6.75% | Strengthens α-phase, improves creep resistance |
| Vanadium (V) | 3.5–4.5% | Stabilizes β-phase, enhances workability |
| Iron (Fe) | ≤0.30% | Impurity control |
| Oxygen (O) | ≤0.20% | Affects ductility and strength |
International Standards:
- ASTM B348 (Bar, wire and so on)
- AMS 4928 (Aerospace grade)
- ISO 5832-3 (Medical implants)
2. Key Properties
| Property | Value | Comparison |
|---|---|---|
| Density | 4.43 g/cm³ | 43% lighter than steel |
| Tensile Strength | 900–1100 MPa (annealed) | Comparable to high-strength steel |
| Yield Strength | 830–950 MPa | Higher than stainless steel 316L |
| Elongation | 10–15% | Good ductility |
| Corrosion Resistance | Excellent (seawater, chlorine, body fluids) | Better than stainless steel |
| Max Service Temp. | 400°C (long-term) | Lower than nickel alloys |
3. Applications
- Aerospace: Jet engine components, airframe structures (e.g., Boeing 787 uses ~15% Ti).
- Medical: Hip implants, bone screws (biocompatible).
- Marine: Submarine hulls, offshore piping.
- Automotive: High-performance connecting rods, suspension parts.
- Industrial: Chemical processing equipment.
4. Processing Notes
- Machining: Low thermal conductivity requires slow speeds and sharp tools.
- Welding: Requires argon shielding (TIG preferred).
- Heat Treatment:
- Annealing: 700–800°C (stress relief).
- Solution Treatment + Aging: Increases strength (for critical parts).
5. Advantages vs. Other Titanium Grades
| Grade | Composition | Pros | Cons |
|---|---|---|---|
| GR5 (Ti-6Al-4V) | 6Al-4V | Best all-around performance | Moderate cost |
| GR2 (Commercially Pure Ti) | 99% Ti | Excellent corrosion resistance | Low strength (~350 MPa) |
| GR23 (Ti-6Al-4V ELI) | Extra-low interstitials | Superior toughness (medical use) | Higher cost |
6. Why Choose GR5 Titanium?
✔ High strength-to-weight ratio (ideal for weight-sensitive designs).
✔ Excellent corrosion resistance (outperforms stainless steel).
✔ Biocompatibility (safe for medical implants).
GR5 (Grade 5) is the most widely used titanium alloy, with a nominal composition of Ti-6Al-4V
(6% aluminum, 4% vanadium). what’s more, It is an alpha-beta (α-β) alloy that offers an excellent
balance of strength, corrosion resistance, and lightweight properties and so on .
1. Composition & Standards
| Element | Content (wt%) | Role |
|---|---|---|
| Titanium (Ti) | Balance | Base material |
| Aluminum (Al) | 5.5–6.75% | Strengthens α-phase, improves creep resistance |
| Vanadium (V) | 3.5–4.5% | Stabilizes β-phase, enhances workability |
| Iron (Fe) | ≤0.30% | Impurity control |
| Oxygen (O) | ≤0.20% | Affects ductility and strength |
International Standards:
- ASTM B348 (Bar, wire and so on)
- AMS 4928 (Aerospace grade)
- ISO 5832-3 (Medical implants)
2. Key Properties
| Property | Value | Comparison |
|---|---|---|
| Density | 4.43 g/cm³ | 43% lighter than steel |
| Tensile Strength | 900–1100 MPa (annealed) | Comparable to high-strength steel |
| Yield Strength | 830–950 MPa | Higher than stainless steel 316L |
| Elongation | 10–15% | Good ductility |
| Corrosion Resistance | Excellent (seawater, chlorine, body fluids) | Better than stainless steel |
| Max Service Temp. | 400°C (long-term) | Lower than nickel alloys |
3. Rison Titanium GR5 Titanium Alloy Applications
- Aerospace: Jet engine components, airframe structures (e.g., Boeing 787 uses ~15% Ti).
- Medical: Hip implants, bone screws (biocompatible).
- Marine: Submarine hulls, offshore piping.
- Automotive: High-performance connecting rods as well as suspension parts .
- Industrial: Chemical processing equipment.
4. Processing Notes
- Machining: Low thermal conductivity requires slow speeds and sharp tools.
- Welding: Requires argon shielding (TIG preferred).
- Heat Treatment:
- Annealing: 700–800°C (stress relief).
- Solution Treatment + Aging: Increases strength (for critical parts).
5. Advantages vs. Other Titanium Grades
| Grade | Composition | Pros | Cons |
|---|---|---|---|
| GR5 (Ti-6Al-4V) | 6Al-4V | Best all-around performance | Moderate cost |
| GR2 (Commercially Pure Ti) | 99% Ti | Excellent corrosion resistance | Low strength (~350 MPa) |
| GR23 (Ti-6Al-4V ELI) | Extra-low interstitials | Superior toughness (medical use) | Higher cost |
6. Why Choose GR5 titanium ?
✔ High strength-to-weight ratio (ideal for weight-sensitive designs).
✔ Excellent corrosion resistance (outperforms stainless steel).
✔ Biocompatibility (safe for medical implants).
Our brand is Rison Titanium , We have many Grade 5 (Ti-6Al-4V) titanium bolts, pls click Rison Titanium
to place the order if need any titanium bolts. Also we can custom made any titanium bolts nuts .
Rison Titanium is a very professional company ,we are specialized in the production of
Titanium more than 12 years. As well as we are the American Titanium Industry Association
Member. Our Rison titanium GR5 products Quality Inspected Before Shipping and our company
Manufacture in Strictly Accordance with ISO9001:2015& AS 9100 :2018.
