Edgetech offers coiled tantalum strip in a variety of thicknesses and widths. 
Our strip is precision rolled, annealed and shipped on a strong core. We manufacture products to typical ASTM, AMS or specific drawing specifications, but we also welcome customer developed specifications. If you are just designing to your product requirements, our engineers will help you design specifications that suit your application.
Specification for our tantalum strip
Product Name | Tantalum Strip |
Material | R05200, R05400, Ta-Nb3, Ta-Nb20, Ta-Nb40, Ta-2.5W (R05252) |
Specification | ASTM B708, ASTM F560 |
Size: | 0.1mm-0.5mm thick x 30-600mm width x L in roll |
Temper | Annealed, As rolled, or customized |
Tantalum can also be provided in the cold rolled and stress relieved condition to ASTM F560 limits.
Pure Tantalum Product and Specifications
Material | R05200, Electron beam or vacuum-arc cast tantalum |
R05400, Sintered tantalum | |
Standard | ASTM B365, Tantalum and Tantalum Alloy Rod and Wire |
ASTM B708, Tantalum and Tantalum Alloy Plate, Sheet, and Strip | |
ASTM F560, Unalloyed Tantalum for Surgical Implant Applications |
Edgetech Supplies powder metallurgy and electron beam processed tantalum strips. Powder metallurgy grade tantalum is ideal for deep drawing and stamping applications. 
It ensures that the drawn parts have a smooth surface, free of cracks and pits. The isotropic nature of the strips helps avoid unstable tank height or “earring” problems. When ordering this tantalum tape, please specify “Powder Grade” or order per ASTM B708, R05400. For shallower drawn or stamped parts, “electron beam grade” tantalum tape would be ideal. This type of tantalum strip is rolled from ingots and slabs that are melted and purified in an electron beam furnace. When ordering this material, please refer to ASTM B708, R05200.
For high temperature applications, such as furnace hardware, Edgetech offers grain-stabilized tantalum trip. The product is engineered to significantly extend product life by slowing grain growth at high temperatures.
Physical Properties
TANTALUM PHYSICAL PROPERTIES | |
Density | 0.602 lb/in3 |
Melting Point | 2996°C |
Electrical Resistivity @ R.T. | 12.5 Microhm·cm |
Thermal Conductivity @ R.T. | 54.4 W/m·K |
Thermal Expansion Coefficient | 6.7 X 10-6 |
Temperature Coefficient of Resistivity | 3820 ppm/°C |
Typical values to guide alloy selection but are not a guarantee of minimum or maximum.
Mechanical Properties – ASTM F560 R05200
Condition | Thickness, in | Minimum Ultimate Tensile Strength, MPa [psi] | Minimum Yield Strength,(0.2% offset) MPa [psi] | Minimum Elongation,% |
Cold Worked | all | 520 [75 000] | 345 [50 000] | 2 |
Annealed | 0.0051 to 0.01 | 210 [30 000] | 140 [20 000] | 20 |
over 0.010 to 0.020 | 210 [30 000] | 140 [20 000] | 25 | |
over 0.020 | 210 [30 000] | 140 [20 000] | 30 |
Mechanical properties for tantalum strip (ASTM B708)
Grade and thickness | Annealed (Regular temper) | ||
Tensile strength | Yield strength min, | Elongation min, % | |
Pure Ta Strip (R05200, R05400) | |||
Thickness<0.060″(1.524mm) | 30000 (207) | 20000 (138) | 20 |
Ta-2.5W (R05252) tantalum tungsten alloy strip | |||
Thickness<0.125″ (3.175mm) | 40000 (276) | 30000 (207) | 20 |
Ta-40Nb (R05240) tantalum niobium alloy strip | |||
Thickness<0.060″(1.524mm) | 40000 (276) | 20000 (138) | 25 |
Tantalum strip can be used in the following applications:
-For laboratory equipment.
-Used as a replacement for platinum.
-Used in the manufacture of high temperature alloys and electron beam melting.
-Used in metallurgy, machining, glass and ceramic industries.
Tantalum strip packaging
Our tantalum foils and tantalum tapes are carefully processed to prevent damage during storage and transportation and to maintain the original quality of the product.
Edgetech Industries provides Pure tantalum metal (Ta≥99.95%, R05200, R05400) with tantalum foil, strip, sheet, plate, bar, cylinder, wire, wire mesh, plate, expanded mesh, crucible, flange, fasteners, and complex parts etc.
We also supply Ta Alloys (tantalum-tungsten alloy, tantalum-niobium alloy, Ta-2.5W, Ta-10W; TaNb3, TaNb20, TaNb30, TaNb40) with strips, sheets, plates, blocks, tubes, rods, wires, and complex parts, etc.
We supply shaped and machined parts in pure tantalum and alloys. Custom parts can be tailored according to drawings, please send your drawings to sales@edge-techind.com.