Copper-Phosphorus alloys

Copper-Phosphorus alloys have outstanding brazing properties and wide capabilities. 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 addition 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 has a broad plastic range. These alloys are available in forms of wire, rod, strip, ring and etc. Chemical and physical characteristics of these alloys are shown in table.

 

 

Main parent metals

Area of 
 Application

Standards

Working 
temperature

˚ C

Melting 
range

˚ C

Composition % by weight

Simbon
 Product Code

ISO 17672
(2010)

EN 1044
(1999)

ISO 6377
(1995)

DIN 8513

other

P

Cu

Ag

 Copper to Copper  whitout flux


For Copper alloys like Brass, Bronze, red brass, etc. with flux

 


 Not for media containing sulfur. Not for Fe and Ni alloys

For joints exposed to operating temperature up to 150 ˚C

CuP 284

CP 102

B Cu80AgP

L-Ag15P

710

650 - 800

-

5

80

15

PBS15

CuP 281

CP 104

B Cu89PAg

L-Ag5P

710

650 - 810

-

6

89

5

PBS5

CuP 279

CP 105

B Cu92Ag

L-Ag2P

710

650 - 810

-

6.2

91.8

2

PBS2

CuP 182

CP 201

B Cu92P

L-CuP8

710

710 - 740

-

8

92

-

PBC8

CuP 181

CP 202

B Cu93P

L-CuP7

720

710 - 790

-

7.2

92.8

-

PBC7

CuP 179

CP 203

B Cu94P

L-C
uP6

730

710 - 880

-

6.2

93.8

-

PBC6

CuP 385

CP 302

B Cu86SnP

-

690

650 - 700

7.0  Sn

6.75

86.25

-

PBB