2.Tantalum Rod, Wire
Table 7 Tantalum Ingot, Bar
Ingot Diameter(mm)
iameteriameter(mm) Length(mm)
55∽180 <1400
Bar Φ(25∽35) ×(600∽900)mm
(12∽18)×(12∽18)×(100∽400)mm
Density(g/cm³)≥15.2
Table 8 Chemical Requirements of Tantalum Bar
Grade Chief component Impurity Maximum, %
Ta C H O N Fe Si Ni W Mo Nb Ti
Ta-1 ≥99.95 0.004 0.0015 0.015 0.005 0.005 0.005 0.002 0.005 0.002 0.005 0.001
Special requirements to be agreed on by the supplier and buyer.