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Standard: Q/NSL012-1991
Remark:1:The appearance of the product is steel-like gray.
2:The bending of the product along length direction must not exceed 2%.
|
Class
|
Content of impurities,%,≤
|
|
Nb
|
C
|
O
|
N
|
Fe
|
Ni
|
Cr
|
|
Ta-1
|
0.01
|
0.02
|
0.20
|
0.01
|
0.01
|
0.005
|
0.005
|
|
Ta-2
|
0.02
|
0.04
|
0.30
|
0.02
|
0.02
|
0.010
|
0.010
|
|
-
|
Ti
|
W
|
Mo
|
Si
|
Zr
|
Al
|
Cu
|
|
Ta-1
|
0.003
|
0.003
|
0.003
|
0.02
|
0.003
|
0.003
|
0.003
|
|
Ta-2
|
0.005
|
0.005
|
0.005
|
0.02
|
0.003
|
0.005
|
0.005
|
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