Vacuum Brazing Alloys

Vacuum Brazing Alloys
▪Chemical composition and properties.
Alloy
Trade name
Copper
V54
Cu / Mn / Ni
JIS
（AWS)
BCu-1
Also available in preform rings and paste.
Nominal composition
wt%
Cu
Solidus
℃
Liquidus
℃
Products form
1083
1083
Coil, Foil, Powder
V77-12N2
－
Cu-12Mn-2Ni
970
1030
Coil
V77-24N9
－
Cu-24Mn-9Ni
930
960
Foil
V77-28N2
－
Cu-28Mn-2Ni
890
930
Powder
V77-38N9
（4764)
Cu-38Mn-9Ni
880
925
Foil, Coil
Cu / Sn
V78-8
－
Cu-8Sn
880
1030
Cu / Sn / Ti
Vpw78-23T
－
Cu-23Sn-7Ti
770
810
Cu-/ Si / Mn
V76-3
－
Cu-3.5Si-Mn
970
1025
Coil
970
1000
Powder, Foil
1080
1135
Powder, Foil
Ni alloy
Ag alloy
Trade names meet
Powder
Vpw4-BNi-2
BNi-2
Ni-7Cr-3B-4Si-3Fe
Vpw4-BNi-5
BNi-5
Ni-19Cr-10Si
Vpw4-BNi-6
BNi-6
Ni-10P
880
880
Powder
Vpw4-BNi-7
BNi-7
Ni-10P-14Cr
890
890
Powder
Vpw4-21
－
Ni-21Cr-4P-6Si
960
1080
Powder
Vpw4-25
－
Ni-25Cr-10P
880
950
Powder
Sil-1000
BVAg-0
Ag≧99.95
961
961
Coil, Powder
V1008
BVAg-8
72Ag-28Cu
780
780
Coil, Foil, Powder
V1018
BVAg-18
60Ag-30Cu-10Sn
600
720
Coil, Foil
V1002-NS
－
32Ag-60Cu-2Ni-6Sn
750
920
Coil
V1008-4SH
－
88Ag-7Cu-1Ni-4Sn
830
870
Coil, Foil
V1008-4S
－
72Ag-23Cu-1Ni-4Sn
750
770
Coil, Foil
71Ag-Cu-2Ti
780
800
Powder
68Ag-Cu-5Ti
780
810
Powder
Vpw1008-T
Ag / Ti alloy
Coil
－
Vpw1008-5T
JIS Z3264 : 1998 Copper,
JIS Z3265 : 1998 Nickel,
JIS Z3268 : 1998 noble metal for Vacuum.
▪Standard package : 1kg or 10kg. to vary by item numbers.
Binder to make paste
Select a suitable binder when using brazing powder as in paste.
Binder is decomposed at 500℃〜600℃, and no harmful residue remains.
Vacuum Binder
(Binder to make paste)
Flow stopper
▪Standard package : 1kg
26
Trade name
Solubility
State
Uses
VB-12
Water-soluble
Liquid
Hand coating.
VB-14, VB-15
Water-soluble
Jelly
Automatic feeding.
VB-21, VB-23
Oil based
Liquid
Hand coating.
VB-22, VB-24
Oil based
Jelly
Automatic feeding.
Anti-Flow 2
Water-soluble
Paste type
Hand coating.

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