MATERIAL PROFILE

Ta-10W Rod

Tantalum rod made of Ta-10%W alloy
Close-up view of a tantalum rod made of the Ta-10%W alloy

Tantalum-10% Tungsten is a high-temperature tantalum-tungsten alloy based on tantalum with approximately 10% tungsten added, conforming to the UNS R05255 standard. In the ASTM B365 standard, R05255 is specified as a tantalum alloy in bar form containing 90% tantalum and 10% tungsten.

Compared to pure tantalum, the addition of tungsten significantly improves the material’s mechanical strength and high-temperature properties, while maintaining tantalum’s excellent corrosion resistance. Therefore, Ta-10W is suitable for high-temperature, high-strength, vacuum, and corrosive environments.

Ta-10W bars have high tensile strength, yield strength, and high-temperature strength, making them suitable for use in the aerospace industry, liquid-fuel rocket engines, high-temperature vacuum furnaces, chemical equipment, high-temperature structural components, and specialized mechanical parts.

Ta-10W alloy rods are available upon request in a variety of diameters, lengths, surface roughnesses, and finishing conditions; rods in non-standard sizes can also be manufactured according to customer drawings.

Applications

01

Aerospace Industry

Ta-10W is used in the aerospace industry for high-temperature components, such as hot-gas valves and rocket engine skirts.

02

Chemical Equipment

The Ta-10W is particularly well-suited for use in highly corrosive environments. It is used in valves and linings in the chemical industry.

03

High-Temperature Equipment

Applications: furnace components, high-temperature equipment, heating elements

04

Vacuum Equipment

Can be used for: high-temperature components, furnace structural elements, and special fasteners

05

Semiconductor and Electronics Industry

Can be used for: semiconductor processing equipment, high-temperature components, and corrosion-resistant components

Standard sizes for Tantalum-10 tungsten rods (custom sizes available)

Diameter (mm) Length (customizable)
Ø3.175mm Customized according to customer requirements
Ø6.35mm Customized according to customer requirements
Ø12.7 mm Customized according to customer requirements
Ø25.4 mm Customized according to customer requirements
Ø50.8mm Customized according to customer requirements
Ø63.5 mm Customized according to customer requirements

Mechanical Properties of the Ta-10W Plate (R05255)

Thickness (mm) Tensile strength, Min. 0.2% yield strength, min. Elongation, Min.
<3.175 mm (0.125 inches) 482 MPa MPa 414 MPa 15%
≥3.175 mm (0.125 inches) 482 MPa MPa 379 MPa 20%

Parameter Value
Material Ta-10W
UNS R05255
Standard ASTM B708
Condition Annealed