Ti-15V-3Cr-3Al-3Sn
UNS R58153
Description
Ti-15V-3Cr-3Al-3Sn (Ti-15-3 is its shortened designation) is a metastable beta titanium alloy that can be strip-rolled and heat-treated. In order to develop a titanium alloy that can be fabricated by cold-forming operations to reduce manufacturing and fabrication costs and to facilitate repairs in the field, the alloy was born. Ti-15V-3Cr-3Al-3Sn has excellent cold formability, which can be cold formed to quite intricate shapes with improved structural efficiency. Moreover, the alloy is weldable, relatively insensitive to environments such as saltwater, and has high strength in the aged condition and good room temperature bending properties. Based on the above properties, the alloy is primarily used where cold formability and high strength are desired.
Chemical Component
| Ti | Fe | O | C | N | H | Cr | Sn | Al | V | Others |
|---|---|---|---|---|---|---|---|---|---|---|
| Balance | 0.25% max | 0.13% max | 0.05% max | 0.05% max | 0.015% max | 2.5-3.5% | 2.5-3.5% | 2.5-3.5% | 14.0-16.0% | 0.10% max (each); 0.40% max (total) |
Basic Information
| Items | Ti-15V-3Cr-3Al-3Sn |
|---|---|
| Catalog | ACAM-Ti-A009 |
| Density | 0.172 lbs/in3 (4.76 g/cm3) |
| Thermal Conductivity | 56.1 BTU in/hr.ft2.°F (8.08 W/mK) |
| Modulus of Elasticity | 11.9 x 103 ksi (82 x 103 MPa) in tension |
| Melting Point | 3034 °F (1668 °C) |
Material Forms
Alfa Chemistry offers Ti-15V-3Cr-3Al-3Sn in a variety of forms, including Strip, Foil, Ribbon and Shaped Wire.
Mechanical Properties
- Annealed (1450 °F – A.Q.)
| Temperature | Ultimate Tensile Strength | Yield Strength (0.2% offset) | Elongation |
|---|---|---|---|
| Room temperature | 102 ksi min (703 MPa min) | 100 ksi min (690 MPa min) | 12% min |
- Aged properties: Typical
| Temperature | Aging Temp/Time | Ultimate Tensile Strength | Yield Strength (0.2% offset) | Elongation |
|---|---|---|---|---|
| Room temperature | 1000 °F / 8 Hours | 145 ksi min (1000 MPa min) | 170 ksi min (1172 MPa) | 7% min |
| 1100 °F / 8 Hours | 170 ksi min (1172 MPa min) | 160 ksi min (1103 MPa min) | 5% min | |
| 1275°F / 8 Hours | 180 ksi min (1241 MPa min) | 170 ksi min (1172 MPa min) | 5% min |
Additional Properties
Heat Treatment: Ti-15V-3Cr-3Al-3Sn alloy can be hardened by aging.
Forming: Ti-15V-3Cr-3Al-3Sn alloy can be hot or cold formed. Cold forming is easy to perform. It is strip-producible.
Welding: Weldability of grade Ti-15V-3Cr-3Al-3Sn alloy is rated as good.
Cold Working: Cold working features of this material is same as that of a moderately tempered austenitic stainless steel. Post-work annealing is recommended to re-attain favorable performance properties.
Specifications
Strip, Foil, Ribbon and Shaped Wire: AMS 4914.
Applications
Ti-15V-3Cr-3Al-3Sn can be used in a variety of applications, including:
- Airframe structures
- Ducting
- Honeycombs
- Turbine engine disks and blades
- Aerospace components
- Hydraulic tubing
- Springs
- Fasteners
- Oil and gas
- High performance automotive
* Technical data included herein should be used as a guideline only, and should not be construed as maximum or minimum values for specification or for final design, or for a particular use or application. The data may be revised anytime without notice.
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