Code

规格

TREM

（ %）

D y /RE

（ %）

RE Impurities Content (%/TREM)

稀土杂质含量

Non-RE Impurities Content (%/TREM)

非稀土杂质含量

Eu+Gd+Dy+Ho+Y

Mg

Al

Si

Ca

Fe

W

C

O

Ta

3N-Tb

99

≥ 99.9

≤ 0.1

≤ 0.01

≤ 0.02

≤ 0.02

≤ 0.03

≤ 0.05

≤ 0.2

≤ 0.03

≤ 0.3

≤ 0.01

3N-Tb-A

99.5

≥ 99.9

≤ 0.1

≤ 0.005

≤ 0.01

≤ 0.005

≤ 0.01

≤ 0.01

≤ 0.01

≤ 0.01

≤ 0.05

≤ 0.01

4N-Tb

99.5

≥ 99.99

≤ 0.01

≤ 0.003

≤ 0.005

≤ 0.003

≤ 0.005

≤ 0.01

≤ 0.005

≤ 0.007

≤ 0.03

≤ 0.005