silver alloys

Silver brazing filler metal

Cadmium-free silver alloys

Silver alloys for solder and brazing (with a low melting point), are widely used for joining ferrous and non-ferrous metals, such as iron, steel, inox, copper, brass, etc. They are free-flowing alloys and have high capillarity and corrosion resistance under normal utilization conditions. If they are used in presence of oxygen it must be used the right flux.

In order to avoid corrosion phenomena in stainless steels brazing that are subjected in humid environments or in contact with ammonia, it is recommended to use alloys without Zinc.

Saldobrase offers a wide range of silver brazing filler material starting form the most used silver solder rods, flux coated silver brazing rods, and many other products cadmium-free.

Model
Composition
Melting range (° C)
Specific gravity (g/cm3)
Standard
Data sheet

SILVER ALLOY WITH TIN

Good flow and average capillarity, moderate mechanical properties particularly in elongation.
The addition of tin improves its fluidity and reduces the temperature of use, besides being able to obtain a clear junction. Indicated for all ferrous metals, steel, copper, brass, except for aluminium. Used in the mechanical, electronics, refrigeration, musical instruments industry and also with heat at high frequency oven. Light yellow colour. The recommended play is 0.05 ÷ 0.13 mm.

Ag 25% Cu 40% Zn 33% Sn 2%

680-760

8,7

ISO 17672 Ag 125
EN 1044 AG 108
DIN 8513 L-Ag25Sn
AWS A5.8 BAg-37

Good wettability and smoothness. The presence of tin, as well as improving fluidity, is useful in order to increase the activity of the flux; it is used on equipment and containers for the food industry or for assembling copper piping in the refrigeration industry. Light yellow colour. The recommended play is 0.05 ÷ 0.13 mm.

Ag 30% Cu 36% Zn 32% Sn 2%

665-755

8,9

ISO 17672 Ag 130
EN 1044 AG 107
DIN 8513 L-Ag30Sn

Good wettability and smoothness. The presence of tin, as well as improving fluidity, is useful in order to increase the activity of the flux; it is used on equipment and containers for the food industry or for assembling copper piping in the refrigeration industry. Light yellow colour. The recommended play is 0.05 ÷ 0.13 mm.

Ag 34% Cu 36% Zn 27,5% Sn 2,5%

630-730

9

ISO 17672 Ag 134
EN 1044 AG 106
DIN 8513 L-Ag34Sn

Used for ferrous and non-ferrous metals. Good anti-corrosion properties with stainless steel. Suitable for tungsten carbide couplings. Good mechanical and filling characteristics because of the narrow melting range. Yellowish-white colour. The recommended play is 0.05 ÷ 0.13 mm.

Ag 38% Cu 32% Zn 28% Sn 2%

650-720

9,1

ISO 17672 Ag 138
AWS A5.8 BAg-34

Used for ferrous and non-ferrous metals. Good anti-corrosion properties with stainless steel. Suitable for tungsten carbide couplings. Good mechanical and filling characteristics because of the narrow melting range. Yellowish-white colour. The recommended play is 0.05 ÷ 0.13 mm.

Ag 40% Cu 30% Zn 28% Sn 2%

650-710

9,1

ISO 17672 Ag 140
EN 1044 AG 105
DIN 8513 L-Ag40Sn
AWS A5.8 BAg-28

For general use, in particular with dissimilar metals by virtue of the low melting temperature with moderate fluidity characteristics. Light yellow colour. The recommended play is 0.05 ÷ 0.13 mm.

Ag 45% Cu 27% Zn 25,5% Sn 2,5%

640-680

9,2

ISO 17672 Ag 145
EN 1044 AG 104
DIN 8513 L-Ag45Sn
AWS A5.8 BAg-36

Its special formulation enhances its low-melting and wetting features. Suitable for food uses, its application minimises corrosion cracks under stress of the nickel and its alloys and levels out their colour to that of the base metal. Yellow colour. The recommended play is 0.05 ÷ 0.13 mm.

Ag 55% Cu 21% Zn 22% Sn 2%

630-660

9,4

ISO 17672 Ag 155
EN 1044 AG 103
DIN 8513 L-Ag55Sn

Its special formulation enhances its low-melting and wetting features. Suitable for food uses, its application minimises corrosion cracks under stress of the nickel and its alloys and levels out their colour to that of the base metal. Yellow colour. The recommended play is 0.05 ÷ 0.13 mm.

Ag 56% Cu 22% Zn 17% Sn 5%

620-655

9,5

ISO 17672 Ag 156
EN 1044 AG 102
AWS A5.8 BAg-7

SILVER ALLOYS WITHOUT TIN

Tough and hard brazing suitable for brass, steel or cast iron fittings even if ill-prepared or oxidised. Brass colour coupling. The recommended play is 0.05 ÷ 0.13 mm.

Ag 5% Cu 55% Zn 40%

820-870

8,4

ISO 17672 Ag 205
EN 1044 AG 208

Good flow and average capillarity, moderate mechanical properties particularly in elongation.
The addition of tin improves its fluidity and reduces the temperature of use, besides being able to obtain a clear junction. Indicated for all ferrous metals, steel, copper, brass, except for aluminium. Used in the mechanical, electronics, refrigeration, musical instruments industry and also with heat at high frequency oven. Light yellow colour. The recommended play is 0.05 ÷ 0.13 mm.

Ag 20% Cu 44% Zn 36%

690-810

8,7

EN 1044 AG 206
DIN 8513 L-Ag20

Good flow and average capillarity, moderate mechanical properties particularly in elongation.
The addition of tin improves its fluidity and reduces the temperature of use, besides being able to obtain a clear junction. Indicated for all ferrous metals, steel, copper, brass, except for aluminium. Used in the mechanical, electronics, refrigeration, musical instruments industry and also with heat at high frequency oven. Light yellow colour. The recommended play is 0.05 ÷ 0.13 mm.

Ag 25% Cu 40% Zn 35%

700-790

8,8

ISO 17672 Ag 225
EN 1044 AG 205
DIN 8513 L-Ag25

Good wettability and smoothness. The presence of tin, as well as improving fluidity, is useful in order to increase the activity of the flux; it is used on equipment and containers for the food industry or for assembling copper piping in the refrigeration industry. Light yellow colour. The recommended play is 0.05 ÷ 0.13 mm.

Ag 30% Cu 38% Zn 32%

680-765

8,9

ISO 17672 Ag 230
EN 1044 Ag 204
DIN 8513 L-Ag30
AWS A5.8 BAg-20

Good wettability and smoothness. The presence of tin, as well as improving fluidity, is useful in order to increase the activity of the flux; it is used on equipment and containers for the food industry or for assembling copper piping in the refrigeration industry. Light yellow colour. The recommended play is 0.05 ÷ 0.13 mm.

Ag 33% Cu 34% Zn 33%

700-740

8,9

-

For brazing dissimilar metals in the assembly of pipes and fittings for the refrigeration industry. Light yellow colour. The recommended play is 0.05 ÷ 0.13 mm.

Ag 35% Cu 32% Zn 33%

680-750

9

ISO 17672 Ag 235
AWS A5.8 BAg-35

Excellent mechanical properties, used on applications where it requires a particular coupling strength, such as pipes exposed to strong pressure levels, vibration and prolonged mechanical stress. White yellow colour. The recommended play is 0.05 to 0.13 mm.

Ag 44% Cu 30% Zn 26%

675-735

9,1

ISO 17672 Ag 244
EN 1044 AG 203
DIN 8513 L-Ag44

Good mechanical properties. Used for furnace brazing of ferrous and non-ferrous metals. Suitable replacements for the corresponding cadmium-based ones. Alloy is frequently used in the electronics and food industries, as well as for brass parts such as naval pipe work, musical instruments, chandeliers. Suitable for wide couplings and thick fillings. White yellow colour.
The recommended play is 0.05 ÷ 0.13 mm.

Ag 45% Cu 30% Zn 25%

660-740

9,2

ISO 17672 Ag 245
AWS A5.8 BAg-5

Its special formulation enhances its low-melting and wetting features. Suitable for food uses, its application minimises corrosion cracks under stress of the nickel and its alloys and levels out their colour to that of the base metal. Yellow colour. The recommended play is 0.05 ÷ 0.13 mm.

Ag 60% Cu 26% Zn 14%

695-730

9,5

ISO 17672 Ag 202

The high silver content with good fluidity properties, used especially in the fields of silverware, jewelry and fashion accessories.
The low zinc content minimizes the problems due to its evaporation by overheating. The recommended play between joints is 0.075 ÷ 0.15 mm.

Ag 67% Cu 23% Zn 9%

700-730

9,8

-

The high silver content with good fluidity properties, used especially in the fields of silverware, jewelry and fashion accessories.
The low zinc content minimizes the problems due to its evaporation by overheating. The recommended play between joints is 0.075 ÷ 0.15 mm.

Ag 74% Cu 18% Zn 8%

740-780

9,8

-

SILVER ALLOYS WITH NICKEL

Silver-based alloy with excellent fluidity and mechanical strength, the addition of Nickel improves the corrosion resistance. Used primarily for brazing stainless steel joints and tungsten carbides.

Ag 40% Cu 30% Zn 28% Ni 2%

670-780

8,9

ISO 17672 Ag 440
AWS A5.8 BAg-4

With a low melting temperature and greater strength characteristics compared with SB/50MnNi, it is ideal for brazing tungsten carbide tools, and is indicated for AUSTENITIC stainless steels in a salty environment. White colour. The recommended play is 0.05 ÷ 0.15 mm.

Ag 49% Cu 16% Zn 23% Ni 4,5%

680-705

8,9

ISO 17672 Ag 449
EN 1044 AG 502
DIN 8513 L-Ag49
AWS A5.8 BAg-22

Good fluidity. Suitable for series 300 low carbon stainless steels (hospital tools and food handling) and small inserts of tungsten carbide for cutting tools. White colour. The recommended play is 0.1 ÷ 0.25 mm.

Ag 50% Cu 20% Zn 28% Ni 2%

660-750

9,4

ISO 17672 Ag 450
AWS A5.8 BAg-24

SILVER ALLOYS WITHOUT COPPER

The high silver content and high melting point, without copper, with good fluidity properties. It can be used for brazing stainless steel parts, provided they are not exposed to environments with high humidity.
Thanks to the absence of the copper, it is also ideal for applications where the presence of this element is unwanted, particularly in environments in contact with ammonia. All copper alloys are in fact rapidly attacked and corroded by ammonia.

Ag 72% Zn 28%

710-730

8,4

-

The high silver content and high melting point, without copper, with good fluidity properties. Thanks to the absence of the copper, it is also ideal for applications where the presence of this element is unwanted, particularly in environments in contact with ammonia. All copper alloys are in fact rapidly attacked and corroded by ammonia.

Ag 85% Mn 15%

960-970

10

ISO 17672 Ag 485
EN 1044 AG 501
AWS A5.8 BAg-23

SILVER ALLOYS WITHOUT ZINC

Its special formulation enhances its low-melting and wetting features. Suitable for food uses, its application minimises corrosion cracks under stress of the nickel and its alloys and levels out their colour to that of the base metal. Yellow colour. The recommended play is 0.05 ÷ 0.13 mm.

Ag 60% Cu 30% Sn 10%

600-730

9,8

ISO 17672 AG 160
EN 1044 AG 402
DIN 8513 L-Ag60Sn
AWS A5.8 BAg18

Thanks to its single-point melting range and absence of zinc, this alloy is highly suitable for furnace brazing under a protective atmosphere without the use of flux and for brazing in vacuum. It can be used to join ferrous and non-ferrous metals, such as steel, stainless steel, copper, brass, etc. The recommended play is 0,05 ÷ 0,10 mm.

Ag 72% Cu 28%

779

10

ISO 17672 Ag 272
EN 1044 AG 401
AWS A5.8 BAg-8

Silver alloys formats

Silver alloys are available in several formats: silver brazing rods and flux coated rods, silver wires, silver foils, silver rings, preformed, powders and pastes.

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