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碳化鉭
碳化鉭粉規(guī)格
碳化鉭粉規(guī)格
質(zhì)量分?jǐn)?shù)%
|
產(chǎn)品牌號(hào) |
一級(jí) |
二級(jí) |
三級(jí) |
|
|
Tac |
≥99.5 |
≥99.0 |
≥99.0 |
|
|
總碳 |
≥6.20 |
≥6.20 |
≥6.25±0.25 |
|
|
雜質(zhì)含量不大于 |
游離碳 |
≤0.05 |
≤0.1 |
≤0.1 |
|
Nb |
≤0.03 |
≤0.03 |
≤0.03 |
|
|
Fe |
≤0.05 |
≤0.1 |
≤0.1 |
|
|
Si |
≤0.008 |
≤0.01 |
≤0.015 |
|
|
Al |
≤0.005 |
≤0.005 |
≤0.01 |
|
|
Ti |
≤0.008 |
≤0.015 |
≤0.02 |
|
|
N |
≤0.001 |
≤0.005 |
≤0.01 |
|
|
Na |
≤0.003 |
≤0.005 |
≤0.02 |
|
|
Ca |
≤0.005 |
≤0.005 |
≤0.01 |
|
|
K |
≤0.003 |
≤0.005 |
≤0.01 |
|
|
費(fèi)氏平均粒徑 |
0.8～1.0 |
1.0～1.2 |
1.2～1.5 |
1.5～3.0 |
|
氧含量/% 不大于 |
0.35 |
0.30 |
0.20 |
0.15 |
