SILVER BRAZING ALLOYS CADMIUM FREE

The following are general purpose brazing alloys, suitable to join easily a wide range of ferrous and non-ferrous base materials (iron, steel, stainless steel, copper, brass, etc.).
Continuous service operating temperatures of joints brazed with these alloys range up to approx 200 °C.
When joining stainless steel in wet environments, in order to avoid failure of the joint due to interfacial corrosion, it is recommended to use zinc-free alloys (Ag60Sn/1), or alloys with Nickel additions.
Available in many different presentation forms (rods, flux-coated rods, wires, strips, rings, preforms, pastes and powders), these alloys are very free flowing, ductile and strong.
All these alloys do not contain Cadmium, do not present the Health & Safety concerns associated with Cadmium-bearing alloys and are RoHS compliant.
They are divided in two categories: alloys with Tin and alloys without Tin; Tin being used to lower the melting temperature of the alloy.
When brazing in an oxidizing environment (that is: in air), the use of a proper flux is required.

Code Composition % Melting Range SOL-LIQ Density Tensile strength Standard Pdf
Ag Cu Zn Sn Si °C g/cm3 kg/mm2 ISO 17672 EN 1044 AWS A5.8

Silver alloys with Tin

Ag60Sn 60 23 14 3 620-685 9,6 48 AG 101
Ag60Sn/1 60 30 10 600-730 9,8 Ag 160 AG 402 BAg-18
Ag56Sn 56 22 17 5 620-655 9,4 48 Ag 156 AG 102 BAg-7
Ag55Sn 55 21 22 2 630-660 9,4 44 Ag 155 AG 103
Ag45Sn 45 27 25,5 2,5 640-680 9,2 43 Ag 145 AG 104 BAg-36
Ag40Sn 40 30 28 2 650-710 9,1 44 Ag 140 AG 105 BAg-28
Ag38Sn 38 32 28 2 650-720 9,1 45 Ag 138 BAg-34
Ag34Sn 34 36 27,5 2,5 630-730 9 48 Ag 134 AG 106
Ag30Sn 30 36 32 2 665-755 8,8 48 Ag 130 AG 107
Ag25Sn 25 40 33 2 680-760 8,8 48 Ag 125 AG 108 BAg-37

Silver alloys without Tin

Ag83 83 15 2 780-830 10,2
Ag81 81 13 6 725-800 10 36
Ag74 74 18 8 740-780 9.8 41
Ag67.5 67.5 23.5 9 700-730 9.7 47
Ag65 65 20 15 670-720 9,6 41 Ag 265 BAg-9
Ag60 60 26 14 695-730 9,5 45 AG 202
Ag45 45 30 25 665-745 9,1 42 Ag 245 BAg-5
Ag44 45 30 26 675-735 9,1 51 Ag 244 AG 203
Ag40 40 30 30 660-720 9,1 46
Ag35 35 32 33 685-755 9 48 Ag 235 BAg-35
Ag33 33 33,5 33,5 680-750 9 55
Ag30 30 38 32 680-765 8,9 50 Ag 230 AG 204 BAg-20
Ag25 25 40 35 700-790 8,8 45 Ag 225 AG 205
Ag20 20 44 36 0,15 690-810 8,7 43 AG 206
Ag12 12 48 40 0,15 800-830 8,4 48 Ag 212 AG 207
Ag5 5 55 40 0,15 820-870 8,4 48 Ag 205 AG 208

Make-up
Rods Ø; 0,5
÷
4 mm
Length: 500 / 1.000 mm
Coated rods Ø: 1,5 – 2 – 2,5 – 3 mm Length: 500 mm / Different kinds of coating available in various colours
Wires Ø: 0,25
÷
3 mm
Coils and Spools
Strips Thickness: 0,1
÷
1 mm
Width: 1,3 → 80 mm
Powder and Paste
Rings
Preforms from Wire and from Strip