|
National Code
|
Essential Component(%)
|
Melting
Temperature
(℃)
|
Intensity
of tension
(/Mpa)
|
Features and Application
|
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|
Ag
|
Cu
|
Zn
|
Cd
|
Ni
|
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|
BAg12CuZnCd
|
11-13
|
49-51
|
Remainder
|
5-9
|
|
620-825
|
|
High melting point, suitable for brazing of copper and copper alloy
|
|
BAg20CuZnCd
|
19-21
|
39-41
|
Remainder
|
14-16
|
|
625-730
|
-
|
Low content for Ag, good fluidity, suitable for brazing alloy, steel and stainless steel etc
|
|
BAg25CuZnCd
|
24-25
|
34-36
|
Remainder
|
19-21
|
|
620-720
|
|
Low melting point, suitable for brazing of copper and copper alloy
|
|
BAg30CuZnCd
|
29-31
|
26-28
|
Remainder
|
19-21
|
|
600-690
|
|
|
|
BAg35CuZnCd
(HL314)
|
34-36
|
25-27
|
Remainder
|
17-19
|
|
605-700
|
441
|
Big crystallizing temperature interval, suitable for brazing in uneven clearance such as high frequency, flame etc
|
|
BAg40CuZnCdNi
(HL312)
|
39-41
|
15.5-16.5
|
14.5-18.5
|
25.1-36.5
|
0.1-0.3
|
595-605
|
392
|
Good brazing performance, low melting point, suitable for brazing on materials with low brazing temperature
|
|
BAg50CuZnCd
|
49-51
|
14.5-15.5
|
14.5-18.5
|
17-19
|
|
625-635
|
431
|
Low melting point, good brazing performance, smooth joint surface, high joint intensity, suitable for brazing of copper alloy and steel etc
|
|
BAg50CuZnCdNi
|
49-51
|
14.5-16.5
|
13.5-17.5
|
15-17
|
2.5-3.5
|
630-690
|
|
With good erosion resistance and wettability to hard carbide, suitable for brazing of hard carbide.
|
|
BAg47CuZnMnNi
|
46-48
|
|
|
|
|
640-680
|
|
Higher joint intensity, strong wettability to hard carbide, suitable for brazing of hard carbide tools
|
|
Remark:
1. The residue such as grease, oxide etc on the surface and connection must be removed strictly before the brazing, the proper clearance between joint shall be within 0.03-0.075mm.
2. The flame shall be neutral in brazing to avoid the brittleness resulting from overheating and over-burning, and brazing flux shall be also used.
|
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