Copper-zinc brazing filler metals are mainly used in fast-heating brazing processes such as flame brazing, high frequency induction brazing and resistance brazing. It is used to braze copper, copper alloys, steels, cast iron and cemented carbide. Contaminantes on the surface, such as grease and oxides must be removed thoroughly before brazing. Addition of flux is necessary during brazing in order to obtain optimal brazed joints.
|
Standards
|
Composition %
|
Melting Range |
|
ISO 17672
|
EN 1044
|
Cu
|
Zn
|
Si
|
Ni
|
Mn
|
Diğer
|
ºC
|
|
-
|
PB 301
|
60
|
38,5
|
0,3
|
-
|
-
|
0,2 Sn
|
875-895
|
|
-
|
PB 305
|
49
|
41,3
|
0,2
|
9,5
|
-
|
-
|
890-920
|
|
-
|
PB 306
|
60
|
38,3
|
0,2
|
-
|
0,8
|
0,4 Sn
|
870-890
|
|
-
|
PB 305
|
59,5
|
38,1
|
0,3
|
0,4
|
0,3
|
0,8 Sn - 0,2 Fe
|
870-890
|