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Table L. Filler metals for brazing

AWS
Classifi-
cationΉ
Principal Elements
Temperature F
Silver
Phosphorus
Zinc
Cadmium
Tin
Copper
Solidus
Liquidus
BCup-2
–
7.00-7.5
–
–
–
Remainder
1310
1460
BCup-3
4.8-5.2
5.8-6.2
–
–
–
Remainder
1190
1495
BCup-4
5.8-6.2
7.0-7.5
–
–
–
Remainder
1190
1325
BCup-5
14.5-15.5
4.8-5.2
–
–
–
Remainder
1190
1475
BAg-1²
44-46
–
14-18
23-25²
–
14-16
1125
1145
BAg-2²
34-36
–
19-23
17-19²
–
25-27
1125
1295
BAg-5
44-46
–
23-27
–
–
29-31
1225
1370
BAg-7
55-57
–
15-19
–
4.5-5.5
21-23
1145
1205

Ή ANSI/AWS A5.8 Specification for Filler Metals for Brazing
² WARNING: BAg1 and BAg2 contain cadmium. Heating when brazing can produce highly toxic fumes.
CAUTION: Avoid breathing fumes - use adequate ventilation. Refer to ANSI/ASC Z49.1 Safety in Welding and Cutting.

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