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| Property | Value |
|---|---|
| UNS Number | R56320 |
| ASTM/ASME Standard | ASTM B348 / F467 / F468 |
| Tensile Strength | 900 MPa min |
| Yield Strength | 730 MPa min |
| Density | 4.48 g/cm³ |
| Max Service Temperature | 430°C |
| Element | Composition (%) |
|---|---|
| Ti | balance |
| Al | 2.5–3.5% |
| V | 2.0–3.0% |
| O | ≤0.15% |
| N | ≤0.03% |
| C | ≤0.08% |
| Fe | ≤0.25% |
Titanium Grade 9 is a near-alpha titanium alloy containing 3% aluminum and 2.5% vanadium, offering a balanced combination of strength and formability. The aluminum content stabilizes the alpha phase, enhancing tensile strength and improving elevated temperature performance, while vanadium acts as a beta stabilizer, contributing to improved ductility and cold-workability. This controlled alloying allows Grade 9 to achieve higher strength than commercially pure titanium while retaining excellent weldability and ease of manufacturing, making it particularly well-suited for tubing and fastener applications requiring dimensional precision.
The engineering benefits of Titanium Grade 9 fasteners include superior corrosion resistance in chloride-rich and marine environments, excellent fatigue strength, and a favorable strength-to-weight ratio compared to steel alternatives. Its stable oxide layer provides outstanding resistance to pitting and crevice corrosion, while its moderate heat resistance supports reliable performance in elevated temperature service. These characteristics make Grade 9 fasteners ideal for aerospace, marine, medical, and high-performance industrial applications demanding long-term durability and reduced maintenance.
Specifications
Titanium Grade 9 Fasteners combine high strength, corrosion resistance, and reliable mechanical performance with precise dimensional specifications and technical data suited to critical assemblies. Defined by their mechanical properties and controlled tolerances, they deliver lightweight durability for aerospace, marine, and demanding engineering applications.
| Property | Value |
|---|---|
| Tensile Strength | 900 MPa min |
| Yield Strength | 730 MPa min |
| Elongation | 15% min |
| Hardness | 30 HRC max |
| Modulus of Elasticity | 110 GPa |
| Thermal Expansion | 8.8 µm/m°C |
| Thermal Conductivity | 7.4 W/m·K |
| Density | 4.48 g/cm³ |
| Melting Range | 1600–1650°C |
| Max Service Temperature | 430°C |
| Standard | Details |
|---|---|
| Bolt Standard | ASTM F468, DIN 933 |
| Stud Bolt Standard | ASTM A193 (Ti equivalent) |
| Nut Standard | ASTM F467, DIN 934 |
| Washer Standard | DIN 125, ASME B18.22.1 |
| Thread Form | UNC, UNF, Metric Coarse |
| Diameter Range | M3 – M64 / 1/8" – 2.5" |
| Length Range | 10mm – 300mm |
| Available Forms | Bolts, Studs, Nuts, Washers, Screws |
| Custom Sizes | Available on request |
| Manufacturing Standards | ISO 3506, ASTM F467/F468 |
Applications
