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Home/Compare/Refractory/Ta-2.5W (Ta-97.5-W-2.5) annealed vs Tantalum (Ta pure >99.7%)

Ta-2.5W (Ta-97.5-W-2.5) annealed vs Tantalum (Ta pure >99.7%)

Property comparison of Ta-2.5W (Ta-97.5-W-2.5) annealed and Tantalum (Ta pure >99.7%), both refractory.

Refractory7 compared properties
PropertyTa-2.5W (Ta-97.5-W-2.5) annealedTantalum (Ta pure >99.7%)Difference
Yield strength207 MPa165 MPa-20%
Tensile strength310 MPa270 MPa-13%
Elongation25 %30 %+20%
Elastic modulus186,000 MPa186,000 MPa0%
Density16,600 kg/m³16,650 kg/m³0%
Coefficient of thermal expansion0.000006 1/K0.000007 1/K+2%
Melting point2,996 °C2,996 °C0%

Difference is Tantalum (Ta pure >99.7%) relative to Ta-2.5W (Ta-97.5-W-2.5) annealed. Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.

Identification

Ta-2.5W (Ta-97.5-W-2.5) annealed
grade
R05252
standard
ASTM B365 R05252 / Plansee Ta alloy product data
heat treatment
annealed
Tantalum (Ta pure >99.7%)
grade
Ta R05200
standard
ASTM
heat treatment
Annealed

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View each material

Ta-2.5W (Ta-97.5-W-2.5) annealedAll properties and heat treatmentsTantalum (Ta pure >99.7%)All properties and heat treatments