BAg-Group -  Silver Alloy Brazing Filler Metal

◆  The  Silver alloys metals are suitable for use with all  braze able coppers and copper alloys as most dissimilar alloy combinations.

     The lower brazing temperature for some of the silver alloy filler metals make them particularly well  suited for brazing copper alloys

    with an appreciable zinc content.

     These include yellow brasses , which are subject to dezincification.

     The corrosion resistance of silver filler metals ranges from good to excellent.

◆  Although the cadmium-containing silver alloys are avoided when brazing  equipment for the diary, food, and pharmaceutical
    industries, because of the high toxicity of cadmium.

    The  principal disadvantage of silver alloy filler metals ishigh cost , but this disadvantage can be largely offset joint design.

    their relatively low cost. BAg group.

 Division

 Alloy

 Composition(w/t%)

 Melting

Range

(℃)

 Density

(g/㎤)

 Ag

 Cu

 Zn

 Cd

 Sn

 Ni

 Etc

 KS Standards

 BAg-1

 44~46

 14~16

 14~18

 23~25

 605~620

 9.0

 BAg-1A

 49~514

 14.5~16.5

 14.5~18.5

 17~19

 625~635

 9.1

 BAg-2

 34~36

 25~27

 19~23

 17~19

 605~700

 8.8

 BAg-3

 49~51

 14.5~16.5

 13.5~17.5

 15~17

 2.5~3.5

 630~690

 9.2

 BAg-4

 39~41

 29~31

 26~30

 1.5~2.5

 670~780

 8.8

 BAg-5

 44~46

 29~31

 23~27

 665~745

 8.9

 BAg-6

 49~51

 33~35

 14~18

 690~775

 9.2

 BAg-7

 55~57

 21~23

 15~19

 4.5~5.5

 620~650

 9.2

 BAg-8

 71~73

 27~29

 780~820

 10.0

 BAg-8A

 71~73

 27~29

 Li0.15~0.3

 770~810

 10.0

 Cd-Containing

Products

 SBA-15

 14~16

 44~46

 29~33

 7~10 

 660~800

 8.6

 SBA-20

 19~21

 38~42

 23~27

 15~17

 605~760

 8.8

 SBA-25

 24~26

 34~36

 20~24

 17~19

 605~740

 8.9

 SBA-30

 29~31

 27~29

 19~23

 20~23

 600~690

 9.2

 SBA-40

 39~41

 18~20

 15~19

 23~25

 595~630

 8.8

 SBAg-3

 47~49

 14.5~16.5

 15.5~17.5

 13~15

 3~5

 1~3

 680~710

 8.9

 Cd Free

Products

 SBF-20

 19~21

 44~46

 32~34

 In1~3

 710~815

 8.7

 SBF-22

 21~23

 44~46

 30~32

 1~3

 690~810

 8.7

 SBF-25

 24~26

 40~42

 33~35

 700~800

 8.8

 SBA-30A

 29~31

 35.5~37.5

 31~33

 In0.5~2.5

 665~730

 8.8

 SBA-30B

 29~31

 26~38

 31~33 

 680~750

 8.9

 SBA-302

 29~31

 36~38

 31~33

 680~750

 8.9

 SBF-35

 34~36

 30~33

 32~35

 660~730

 8.9

 SBA-3476

 33~35

 35.5~37.5

 26~28 

2~3

 630~710

 9.0

 SBA-38S

 37~39

 30~32

 25~27

 1~3

 650~690

 9.1

 SBA-403

 39~41

 30~32

 25~27

 In2~4

 660~780

 9.0

 SBA-44n

 43~45

 28~30

 25~27

 675~730

 9.1

 SBA-45n

 44~46

 27~29

 24.5~26.5

 675~730

 9.1

 SBA-49

 48~50

 15~17

 22~24

 3.5~5.5

 Mn6.5~8.5

 680~720

 8.9