Paste Brazing Filler Metals

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Paste Brazing Fillers

Cadmium-Free Silver Brazing Filler Metals

FUSION
NUMBER
Alloy Composition Liquidus Temp Specs
AWS A5.8
Ag Cu Zn Cd Ni Sn
1115 60 30 10 1325°F 718°C BAg18
1202 40 30 28 2 1320°F 716°C BAg28
1205 56 22 17 5 1205°F 651°C BAg7
1230 60 25 15 1325°F 718°C
1235 65 20 15 1325°F 718°C BAg9
1238 38 31 28.8 2.2 1292°F 700°C
1240 40 30 28 2 1435°F 779°C BAg4
1245 40 30 25 5 1550°F 843°C
1246 45 25 30 1292°F 700°C
1250 45 30 25 1370°F 743°C BAg5
1255 55 21 22 2 1220°F 660°C
1260 50 20 28 2 1305°F 707°C BAg24
1265 25 41 32 2 1400°F 760°C BAg37
1400 72 28 1435°F 779°C BAg8
1450 50 34 16 1425°F 774°C BAg6
1740 54 21 25Pd 1740°F 949°C
4765 56 42 2 1640°F 893°C BAg13a
4772 54 40 5 1 1575°F 857°C BAg13
4774 63 28.5 2.5 6 1475°F 700°C BAg21

Silver Brazing Filler Metals — Cadmium Containing

FUSION
NUMBER
Alloy Composition Liquidus Temp Specs
AWS A5.8
Ag Cu Zn Cd Ni Sn
1000 45 15 16 24 1145°F 619°C BAg1
1050 50 15.5 16.5 18 1175°F 635°C BAg1a
1100 35 26 21 18 1295°F 701°C BAg2
1120 30 27 23 20 1310°F 710°C BAg2a
1130 19.5 32.5 35.5 12.5 1375°F 746°C
1200 50 15.5 15.5 16 3 1270°F 688°C BAg3

Copper-Phos Filler Metals

FUSION
NUMBER
Alloy Composition Liquidus Temp Specs
AWS A5.8
Cu P Ag Zn Other
1190 75.0 7.25 17.75 1191°F 644°C
1300 92.75 7.25 1462°F 794°C BCuP2
1306 86.75 7.25 6 1325°F 718°C BCuP4
1310 86.25 6.75 7 Sn 1256°F 680°C
1320 91.75 8.25 1320°F 716°C

Copper-Zinc Filler Metals

FUSION
NUMBER
Alloy Composition Liquidus Temp Specs
AWS A5.8
Cu P Ag Zn Other
1440 27.5 65 7.5Sn 1440°F 782°C
1565 53 9 38 1565°F 851°C
1600 54 4.5 41.5 1635°F 890°C
1650 55 44.75 .25Mn 1635°F 890°C
1660 58 39.60 1Sn .25Mn 1Fe .15Si 1630°F 888°C RBCuZn-C

Copper-Bearing Filler Metals

FUSION
NUMBER
Alloy Composition Liquidus Temp Specs
AWS A5.8
Cu P Ag Zn Other
1800 80 20Sn 1635°F 890°C
1830 90 10Sn 1830°F 999°C
1850 100Cu220 2100°F 1149°C
E1900 100 1980°F 1082°C BCu1a
EC1900 90 10Cu20 1980°F 1082°C
EF1900 95 5Fe2O3 1980°F 1082°C
EM1900 90 7Cu2O/3Fe2O3 1980°F 1082°C

Nickel-Bearing Filler Metals

FUSION
NUMBER
Alloy Composition Liquidus Temp Specs
AWS A5.8
Ni Cr Fe Si B P
1610 89 11 1610°F 877°C BNi 6
1630 75.9 14 10.1 1630°F 888°C BNi 7
4775 74 14 4.5 4.5 3 1900°F 1038°C BNi 1
4777 82.4 7 3 4.5 3 1830°F 999°C BNi 2
4778 92.4 4.5 3.1 1900°F 1038°C BNi 3
4779 94.7 3.5 1.8 1950°F 1066°C BNi 4

Aluminum Brazing Filler Metals

FUSION
NUMBER
Nominal Alloy Composition Liquidus Temp Specs
Al Si Zn Cu
1022 50 5 45 1022°F 550°C
1040 76 10 10 4 1040°F 560°C Alum. Assn. 4245
1070 88 12 1080°F 582°C AWS BAISi-4
1080 92,5 7.5 1142°F 617°C AWS
BAISi-2

Aluminum Low Temperature Filler Metals

FUSION
NUMBER
Nominal
Alloy Composition
Liquidus
Temp
Specs
Zn Al
738 98 2 738°F 388°C
720 95 5 710°F 373°C
845 85 15 845°F 452°C
892 80 20 892°F 478°C

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