Tantalum Sheet & Plate

  • Tantalum sheet
  • Tantalum plate

Product Details

Tantalum Sheet & Tantalum Plate Products Standard

All tantalum sheet and tantalum plate (UNS R05200, UNS R05400), Ta2.5W sheet and Ta2.5W plate (UNS R05252), Ta10W sheet and Ta10W plate (UNS R05255), Ta-40Nb sheet and Ta40Nb plate (UNS R05240) follow ASTM B708.

Tantalum Sheet & Tantalum Plate Production Technology

  • Most tantalum plates are produced by cold working methods. And most thick plates are annealed in vacuo. There is no special requirement for the speed of heating and cooling as there is no phase transition. Quadruplex rolling machines are used in the process of annealing. More attention is paid to avoid being scratched during manufacturing process and delivery since Tantalum is a soft metal.

  • Usually start from 150 ~ 300mm tantalum ingot to 80 ~ 100mm thickness plate, then cold rolling from this plate. The compression ratio can be over 95%.

  • The typical rolling is under room temperature or similar to room temperature to avoid developing oxide at surface.

  • In the process of heat rolling, when the temperature reaches 1000˚C, intense oxidation will happen due to recrystallization.

Tantalum
Products Grade ASTM Standard
Ta Sheet R05200 ASTM B708
Ta2.5W Sheet R05252 ASTM B708
Ta10W Sheet R05255 ASTM B708
Ta40Nb Sheet R05240 ASTM B708
Chemical Requirements
Content, Max, Weight%
Element Electron-Beam Cast/Vacuum-Arc Cast R05200 Unalloyed Tantalum Sintered R05400 Unalloyed Tantalum Electron-Beam Cast/Vacuum-Arc Cast R05255 90%Tantalum 10%Tungsten Electron-Beam Cast/Vacuum-Arc Cast R05252 97.5%Tantalum 2.5%Tungsten Electron-Beam Cast/Vacuum-Arc Cast R05240 60%Tantalum 40%Niobium
C 0.010 0.010 0.010 0.010 0.010
O 0.015 0.03 0.015 0.015 0.020
N 0.010 0.010 0.010 0.010 0.010
H 0.0015 0.0015 0.0015 0.0015 0.0015
Fe 0.010 0.010 0.010 0.010 0.010
Mo 0.020 0.020 0.020 0.020 0.020
Nb 0.100 0.100 0.100 0.50 35.0 - 42.0
Ni 0.010 0.010 0.010 0.010 0.010
Si 0.005 0.005 0.005 0.005 0.005
Ti 0.010 0.010 0.010 0.010 0.010
W 0.05 0.05 9.0 - 11.0 2.0 - 3.5 0.050
Ta Remainder Remainder Remainder Remainder Remainder
Regular Tantalum and Tantalum Alloys Sheet & Plate Dimension
Products Dimension (mm) Shape
Thickness Width Length
Ta Sheet 0.2 - 1.0 1000 100 - 6000 Sheet
Ta2.5W Sheet 0.2 - 1.0 1000 100 - 6000 Sheet
Ta10W Sheet 0.2 - 1.0 650 100 - 6000 Sheet
Ta40Nb Sheet 0.2 - 1.0 650 100 - 6000 Sheet
Grade and Form Annealed Condition
Dimension Ultimate Tensile Strength,
min, psi (MPa)		 Yield Strength, min, psi
(MPa) (2 % Offset)		 Elongation, min, %
(1-in. Gage Length)
Unalloyed tantalum
(R05200)
(R05400)
Plate, sheet and strip		 < 0.060 in. thick
≥0.060 in. thick		 30 000 (207)
25 000 (172)		 20 000 (138)
15 000 (103)		 20
30
90 % tantalum –
10 % tungsten
(R05255)		 Sheet and strip
Plate		 70 000 (482)
70 000 (482)		 60 000 (414)
55 000 (379)		 15
20
97.5 % tantalum –
2.5 % tungsten
(R05252) 		< 0.125 in. thick
≥0.125 in. thick		 40 000 (276)
40 000 (276)		 30 000 (207)
22 000 (152)		 20
25
60 % tantalum –
40 % niobium
(R05240)		 < 0.060 in. thick
≥0.060 in. thick		 35 000
35 000		 20 000 (138)
15 000 (103)		 25
25

Tantalum Sheet & Tantalum Plate Application

Tantalum is a malleable metal, it can be processed by the method of cold forging, rolling, punching, pulling, spinning, extrusion, bending and so on. Hot processing for tantalum should be operated in the inert gas protection state. The high performance tantalum sheet and tantalum strip can be processed into a round cup for six times after the oxidation film is formed on the surface (No anneal during the procedure).
Tantalum and tantalum alloy sheet are high temperature resistant and corrosion-resistant materials. The chemical stability is similar to glass, while strength and rigidity is comparable with low carbon steel. The high temperature heat intensity is second only to tungsten and tungsten alloys. With all these properties, tantalum and tantalum alloy sheet are excellent materials for chemical preservation and high temperature furnace.
Tantalum sheet application
In the fields of medicine, tantalum sheet can be used in the artificial ears. Its malleability makes the artificial ears suitable for human bodies. And there is almost no difference in appearance from the real ears. In the fields of industry, Tantalum sheet can be processed into cups, caps, tubes, cones, nozzles, etc. by spinning and deep draw. In the fields of electronics, high temperature and reactor container, tantalum sheet are also widely used for many kinds of productions.

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