Standard:Q/NSL010-1993，ASTM B 364-92
Chemicalcomposition of the tantalum ingot(standard:Q/NSL010-1993)
|
Class
|
Content of impurities，％，≤
|
|
O
|
C
|
N
|
H
|
Fe
|
Ni
|
Cr
|
Si
|
|
TD- special
|
0.01
|
0.005
|
0.003
|
0.002
|
0.002
|
0.0005
|
0.0005
|
0.0005
|
|
TD-1
|
0.01
|
0.005
|
0.003
|
0.002
|
0.0015
|
0.0005
|
0.0005
|
0.002
|
|
TD-2
|
0.01
|
0.005
|
0.005
|
0.002
|
0.002
|
0.001
|
0.001
|
0.002
|
|
TD-3
|
0.015
|
0.008
|
0.008
|
0.002
|
0.005
|
0.005
|
0.005
|
0.005
|
|
|
Nb
|
Cu
|
W
|
Mo
|
Ti
|
Mn
|
Al
|
Zr
|
|
TD- special
|
0.003
|
0.0005
|
0.001
|
0.001
|
0.0005
|
0.0005
|
0.0005
|
0.001
|
|
TD-1
|
0.004
|
0.0005
|
0.0015
|
0.001
|
0.0005
|
0.0005
|
0.0005
|
0.001
|
|
TD-2
|
0.04
|
0.001
|
0.03
|
0.01
|
0.0005
|
0.001
|
0.0005
|
0.001
|
|
TD-3
|
0.08
|
0.005
|
0.05
|
0.02
|
0.005
|
0.005
|
0.005
|
0.005
|
