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Vanadium metal ingots are melted in electron beam furnaces equipped with axial thermionic guns and high-voltage glow discharge guns. The melting is carried out by the drop melting method to vertical water-cooled copper moulds.
Electron beam melted vanadium
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Impurities
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ÒÓ 1761-043-2587982-2002
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ÒÓ 1761-037-2587982-2002
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ÒÓ 48-4-272-73
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ÂíÌ 99,99 ppm
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ÂíÌ 99.5% mass
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ÂíÌ 99.7% mass
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ÂíÌ 99.8% mass
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ÂíÌ 99.9% mass
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ÂíÌ –1% mass
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ÂíÌ –2% mass
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Al
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<5
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0.15
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0.05
|
0.05
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0.03
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0,2
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0,3
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Fe
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<20
|
0.10
|
0.05
|
0.01
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0.005
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0,15
|
0,25
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Si
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<10
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0.10
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0.13
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0.05
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0.03
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0,2
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0,3
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C
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<100
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0.02
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0.03
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0.03
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0.01
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0,03
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0,04
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N
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<100
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0.01
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0.02
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0.02
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0.01
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0,01
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0,02
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O2
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<500
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0.03
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0.05
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0.05
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0.015
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0,03
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0,05
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H2
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<10
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-
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-
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0.0005
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0.001
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0,001
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0,001
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Cu
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<1
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-
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-
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0.001
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0.001
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-
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-
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Cr
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<15
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-
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-
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0.002
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0.002
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-
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-
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Ni
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<40
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-
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0.01
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0.01
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0.01
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-
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-
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Mo
|
<1
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-
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0.05
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0.01
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0.01
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-
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-
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P
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<1
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-
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0.003
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0.003
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0.003
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-
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-
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S
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<10
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-
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-
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0.005
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0.005
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-
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-
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Co
|
<1
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-
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-
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0.001
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0.001
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-
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-
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Sn
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<1
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-
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0.02
|
0.02
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0.02
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-
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-
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Ta
|
<1
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-
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0.02
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0.005
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0.005
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-
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-
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W
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<1
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-
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0.01
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0.002
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0.002
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-
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-
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B
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<0,1
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-
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0.001
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0.001
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0.001
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-
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-
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Ti
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<5
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-
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-
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0.001
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0.001
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-
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-
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Nb
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<5
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-
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-
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0.01
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0.01
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-
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-
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Zr
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<1
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-
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-
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0.001
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0.001
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-
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-
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U
|
<0,2
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-
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-
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-
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-
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-
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-
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Th
|
<0,2
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-
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-
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-
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-
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-
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-
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