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Copper-Phosphorus Filler Materials

AWS A5.8/EN 1044

Ag

Cu

P

Melting
Range ˚C

Flow
Point ˚C

Application

BCuP-8/CP101

18

75.75

6.25

645-665

663

Low melting point, good flow for tight fitting joints

BCuP-5/CP102

15

80

5

643-802

704

For joints with large clearances; slow flow

BCuP-4

6

86.7

7.3

643-718

690

Very fluid at brazing temperatures, will penetrate joints with small clearances

BCuP-3/CP104

5

89

6

643-813

718

Similar to BCuP-5

BCuP-6/CP105

2

91

7

643-788

718

Combines some of the properties of BCuP-2 and BCuP-3

BCuP-2/CP202

 

92.7

7.3

710-793

731

Low cost version of BCuP-4

Sinag-T™

Proprietary
composition

645-802

745

New product in strip form! Silver-free copper-phosphorus alloy.  Similar flow point to BCuP-5 (CP102), good ductility and tensile strength!