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» Tantalum Properties

There are several different kinds of Tantalum (Tantal Sonderwerkstoffe Apparatebau, Tantale) under ASTM specification. Pure Tantalum is known as RO5200, R05252 (97.5 % Tantalum 2.5 % Tungsten / Wolfram) and R05240 (60 % Tantalum 40 % Columbium / Niobium).

Composition Tantaldraht Tantalfolie, Tantalplatte, Tantalum Wire, Tantalum Rod Mechanical Data

» Composition

Element [%] RO5200 R05252 R05240
C <0.05 <0.05 <0.05
O <0.1 <0.1 <.2
N <0.05 <0.05 <0.05
H <10 <10 <10
Nb <300 500 35.0-42.0
Fe <10 <10 <10
Ti <10 <10 <10
W <0.05 2.5-3.5 <0.05
Mo <10 <10 <10
Si <10 <10 <10
Ni <10 <10 <10
Ta 99.95%+ 97.5% 60%

» Mechanical Data

Property dia 3 - 63 mm RO5200 R05252 R05240
Tensile Strength ksi (MPa) 25 (172) 40 (276) 35 (244)
0.2% Proof Stress ksi (MPa) 15 28 (193) 15 (103)
Elongation over 2 Inches % 25 20 25

However targets are supplied in much higher purity and according to different specifications. Please contact us for more details.