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Specifications

Silver welding rods, have outstanding brazing properties and wide capabilities. Phosphorus will alloy readily with copper. Phosphorus is a reducing agent for copper and also deoxidizes silver. These brazing alloys of copper-phosphorus and silver-copper-phosphorus are self-fluxing on pure copper.

 

 

 

The reduction of phosphorus and additions of silver have a profound effect upon the fluidity of brazing alloys. The alloys of higher phosphorus content are extremely fluid, while the lower phosphorus, high silver alloy has a broad plastic range. Even small adjustments in alloy percentages have a marked effect on brazing alloy fluidity.

 

 

These brazing alloys are primarily used for joining copper and copper alloys and copper-phosphorus can be used for all brazing processes.

 

Phos/Copper-Silver Brazing Alloys

 

 

 

 

Brazing Alloys

CHEMICAL COMPOSITION (%)

Melting Range

 

Application

Cu

Ag

P

Impurty Total

Solidus

/

Liquidus

/

BCu91PAg

 

 

Bal.

 

1. 8~2. 2

6. 8~7. 5

 

 

≤0. 10

1190/643

1455/790

For brazing copper parts in air-conditioners, freezers, refrigerators and motors. The brazing performance is excellent.

BCu88PAg

4. 6~5. 2

6. 5~7. 0

1190/643

1445/785

BCu87PAg

5. 8~6. 2

6. 8~7. 5

1190/643

1370/745

BCu84PAg

9. 5~10. 5

6. 0~7. 0

1195/647

1210/655

BCu80PAg

14. 5~15. 5

4. 8~5. 3

1190/643

1470/800