| Product | Tantalum Tungsten Foil/Strip (Ta-W Foil/Ta Strip) |
| Part Number | TRM-TA015 |
| Standard | ASTM B708 UNS R05252/UNS R05255 |
| Assay | Ta97.5W2.5 or Ta90W10 |
| Density | 16.9 g/cm3 |
Tantalum tungsten alloy(Ta-W alloy) is typically tantalum 2.5% Tungsten and tantalum 10% Tungsten of high density 16.90 g/cc. It has good high-temperature mechanical properties, high density, high strength, good toughness and strong stiffness. In addition, tantalum tungsten alloy Foil/Strip has excellent corrosion resistance especially in acids, and it has better corrosion resistance than pure tantalum. We can offer a wide variety of dimensions.
Application: Tantalum tungsten foil/strip is used for chemical process equipment including heating and cooling coils, heat exchange, condensers, reaction vessels, leaf springs and bellows.
Assay
| Element | UNS R05252 | UNS R05255 |
|---|---|---|
| O | 0.015% max | 0.015% max |
| C | 0.010% max | 0.010% max |
| N | 0.010% max | 0.010% max |
| H | 0.0015% max | 0.0015% max |
| Fe | 0.010% max | 0.010% max |
| Ni | 0.010% max | 0.010% max |
| Si | 0.005% max | 0.005% max |
| Ti | 0.010% max | 0.010% max |
| Mo | 0.020% max | 0.020% max |
| W | 2.0-3.5% max | 9.0-11.0% max |
| Nb | 0.50% max | 0.10% max |
| Ta | Remainder | Remainder |
UNS Grade R05252—Tantalum + 2.5% tungsten alloy, vacuum melted.
UNS Grade R05255—Tantalum + 10% tungsten alloy, vacuum melted.
Typical Size Available (Please inquire for details)
| Thickness(In.) | Width(In.) | Length(In.) | |
|---|---|---|---|
| Foil/Strip | 0.001-0.1875 | 1.18-6 | Supplied in Coils |
Please refer to Tantalum Tungsten Alloy Sheet for larger sizes.
Order Information
Please include the following information with your inquires and orders:
1. Quantity
2. Dimensions
3. Ta90W10 or Ta97.5W2.5
Materials available for Tantalum and Tantalum Alloy Foil
R05400—Unalloyed tantalum, powdermetallurgy consolidation,
R05200—Unalloyed tantalum, vacuum melted,
R05252—Tantalum + 2.5% tungsten alloy, vacuum melted.
R05255—Tantalum + 10% tungsten alloy, vacuum melted.
Mechanical Properties for Tantalum Tungsten Alloy Foil
| Mechanical Properties | Tensile strengthmin, psi (MPa) | Yield strength min, psi (MPa) (2% Offset) | Elongation, min % | |
|---|---|---|---|---|
| 97.5% tantalum 2.5% tungsten (R05252) | Thickness <0.125″ (3.175 mm) | 40000 (276) | 30000 (207) | 20 |
| Thickness ≥0.125″ (3.175 mm) | 40000 (276) | 22000 (152) | 25 | |
| 90% tantalum 10% tungsten (R05255) | Sheet and Strip | 70 000 (482) | 60 000 (414) | 15 |
| Plate | 70 000 (482) | 55 000 (379) | 20 |
