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Tungsten

Product descriptions

Tungsten-based products include the following:

  • Tungsten powder
  • Tungsten sheets, plates and sputtering targets
  • Tungsten crucibles
  • Tungsten-based composites W-Cu, W-Ni-Cu

Typical chemical composition of tungsten powder PW 99.95 used in production

Tungsten
Element Ppm Element Ppm Element Ppm
Li < 0.01 Cr ≤ 2 Ru < 0.01
Be < 0.01 Mn ≤ 0.1 Cd < 0.1
B < 0.1 Fe ≤ 15 In < 0.01
C ≤ 30 Co < 0.2 Sn < 0.2
N ≤ 11 Ni ≤ 12 Sb ≤ 1.6
O ≤ 170 Cu ≤ 1 Cs < 0.1
Na ≤ 6 Zn < 0.1 Ba < 0.1
Mg ≤ 0.3 Ge < 0.01 Ta ≤ 4
Al ≤ 7 As ≤ 7 W matrix
Si < 5 Se < 0.1 Pt < 0.1
P < 10 Rb < 0.1 Tl < 0.1
K ≤ 10 Sr < 0.1 Pb ≤ 0.3
Ca ≤ 6 Y < 0.01 Bi < 0.1
Sc ≤ 0.1 Nb ≤ 1 U ≤ 2.2
Ti ≤ 0.6 Mo ≤ 38 S ≤ 30
V ≤ 0.3 Rh < 0.01
Ga, Zr, Pd, Ag, Te, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu,
Hf, Re, Ir, Au, Th in each		 <0.05