Ti-6Al-4V (Ti Grade 5) alloy
Jan 15, 2026
What is GR5 titanium?
The main characteristics of Ti-6Al-4V (Ti Grade 5) alloy are its excellent comprehensive and good processing performance.
Ti Gr5 Titanium alloy also has the excellent process properties of plasticity and super plasticity. Therefore, they are suitable for forming by various pressure machining methods, and compatible for welding and machining in various ways.
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Properties of Ti Grade 5 alloy
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Ti-6Al-4V Titanium alloy specific heat capacity
| Ti-6Al-4V Titanium alloy specific heat capacity | ||||||
| θ/℃ | 20 | 100 | 200 | 300 | 400 | 500 |
| c/J·kg-1·K-1 | 611 | 624 | 653 | 674 | 691 | 703 |
Ti-6Al-4V Titanium alloy linear expansion coefficient
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Ti-6Al-4V Titanium alloy resistivity
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GR5 VS GR2
| Properties | Ti 6Al-4V (UNS R56400) | Titanium Grade 2 (UNS R50400) |
|---|---|---|
| Metallurgy | 895 MPa | 345 MPa |
| Ultimate tensile strength | 827 MPa | 276 MPa |
| 0.2% offset yield strength | 827 MPa | 276 MPa |
| % Elongation (Ductility) | 10 | 20 |
| Corrosion resistance | Very good | Outstanding |
| Creep and stress-rupture | High | NA |
| Fatigue | High | NA |
| Service temperature | -210°C – 400°C for reliable structural integrity | Depends on environments e.g. up to 316°C for steam and seawater |
| Weldability | Weldable |
FAQ
| Why is GR5 titanium alloy so widely used? GR5 titanium alloy is widely used because it offers an optimal balance of high strength, good ductility, excellent corrosion resistance, and favorable weldability, making it versatile for demanding applications. |
| What is the chemical composition of GR5 titanium? The nominal chemical composition of GR5 titanium is Titanium (Ti) balance, Aluminum (Al) 5.5-6.75%, Vanadium (V) 3.5-4.5%, with strict limits on impurities like Iron (Fe), Oxygen (O), Carbon (C), and Nitrogen (N). |
| What are the key mechanical properties of GR5 titanium? Typical minimum mechanical properties for annealed GR5 titanium are: Tensile Strength ≥ 895 MPa, Yield Strength ≥ 825 MPa, and Elongation ≥ 10%. Its strength can be increased through heat treatment. |
| What is the density of GR5 titanium? The density of GR5 titanium is approximately 4.43 g/cm³, which is about 60% of the density of steel, contributing to its high strength-to-weight ratio. |
| Can GR5 titanium be heat treated? Yes, GR5 titanium can be strengthened through solution treatment and aging (STA) processes, which enhance its mechanical properties compared to the annealed condition. |
| Is GR5 titanium corrosion resistant? Yes, GR5 titanium exhibits excellent corrosion resistance in many environments, including seawater, chloride solutions, and various chemical media, due to a stable, protective oxide film. |
| Can GR5 titanium be welded? Yes, GR5 titanium has good weldability using processes like Gas Tungsten Arc Welding (GTAW/TIG) and Electron Beam Welding (EBW), provided that strict shielding from atmospheric contamination is maintained. |
| 9. How does the strength of GR5 compare to commercially pure (CP) titanium grades? GR5 titanium has significantly higher strength than CP titanium grades (such as GR2 or GR4). GR5 is a medium-strength alloy, whereas CP grades are lower in strength but often more formable. |
| What are the main industries that use GR5 titanium? The primary industries using GR5 titanium are aerospace (for airframe and engine components), medical (for orthopedic and dental implants), marine, chemical processing, and high-performance automotive. |
Our product range
| Product Category | Product Form | Common Grades / Alloys | Applicable Standards (Examples) |
|---|---|---|---|
| Titanium Tubes | Seamless & Welded Tubes | • CP (Commercially Pure): Gr1, Gr2, Gr3 • Alloys: Ti-6Al-4V (Gr5), Ti-3Al-2.5V (Gr9) |
ASTM B337, B338 ASME SB338 DIN 17860, 17861 GB/T 3624, 3625 |
| Titanium Bars | Round, Hexagon, Square Bars | • CP: Gr1, Gr2, Gr4 • Alloys: Ti-6Al-4V (Gr5), Ti-6Al-4V ELI |
ASTM B348 ASME SB348 AMS 4928 GB/T 2965 |
| Titanium Plates/Sheets | Plates, Sheets, Strips | • CP: Gr1, Gr2, Gr3, Gr4 • Alloys: Ti-6Al-4V (Gr5), Ti-6Al-4V ELI, Ti-15V-3Cr-3Sn-3Al (Gr21) |
ASTM B265 ASME SB265 AMS 4911 GB/T 3621 |
| Titanium Wires | Coils, Straight Lengths | • CP: Gr1, Gr2, Gr4 • Alloys: Ti-6Al-4V (Gr5) • Specialty: Ti-Ni Shape Memory Alloy (on request) |
ASTM F67, B863 AMS 4954 GB/T 3623 |
| Titanium Foils | Thin Foils, Ultra-thin Strips | • CP: Gr1, Gr2 (most common) | ASTM B265 (for thinner gauges) Custom specifications |
Our factory
why choose our products
Our factory is a specialized and integrated manufacturer dedicated to titanium and titanium alloy products. Equipped with advanced precision forging, rolling, drawing, and heat treatment lines, we produce a complete range of forms including tubes, bars, plates/sheets, wires, and foils. We strictly adhere to international standards such as ASTM, ASME, and GB, utilizing grades from CP (Gr1, Gr2) to high-performance alloys like Ti-6Al-4V (Gr5). Our core strength lies in our stringent process control from raw material to finished product, supported by a fully-equipped in-house laboratory for metallurgical and mechanical testing. This integrated system ensures exceptional quality, consistency, and reliability for our customers in aerospace, medical, chemical processing, and other high-tech industries.
