OTIC Responsible Tantalum Supply Chain Due Diligence Report for 2019

Niobium series

Niobium Powder

Physical Properties: The product are powders in light grey, with high melting point and good resistance to corrosion Applications: The product are mainly used as additives to various alloys and raw materials to produce welding rods and refractory materi

Impurities Concentrations(%,≤
FNb-1 FNb-2 FNb-3
O 0.20 0.20 0.50
H 0.005 0.005 0.01
C 0.05 0.05 0.08
N 0.04 0.06 -
Fe 0.01 0.05 -
Si 0.005 0.01 -
Ni 0.005 0.005 -
Cr 0.005 - -
Ta ≤0.20 ≤0.50 -
W 0.005 0.01 -
Mo 0.003 0.005 -
Ti 0.003 0.005 -
Mn 0.003 0.005 -
Cu 0.003 0.005 -
P - - 0.01
S - - 0.01
Zr - - -
Al      
Nb+Ta≥ - - 98

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