Description
Physical properties:
light gray powder with high melting point and corrosion resistance.
Chemical composition: implement YS/T 258-1996 standard (impurity content ≤%)
Impurity element |
Niobium powder for metallurgy YS/T 258-1996 | ||
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 |