HEAT EXCHANGERS, INDUSTRIAL AND HOME REFRIGERATORS

Brazing alloys for manufacturing of:
heat-exchangers, engine radiators, domestic refrigerators, commercial refrigerators, industrial refrigerators, air conditioners, wall boilers, gas boilers, electric home appliances, coils, condensers, evaporators, compressors for cooling, refrigerated cabinets, etc.

NEW PRODUCTS: ask for the newly introduced PLUS version of Copper-Phosphorus alloys for copper brazing!

Copper-Phosphorus (Silver) Alloys

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

Alloys

CuP6 Bal. 6,3 710-890 760 8,1 56 CuP 179 CP 203
CuP7 Bal. 7,3 710-820 730 8,1 58 CuP 180 CP 202 BCuP-2
CuP8 Bal. 7,8 710-770 720 8 60 CuP 182 CP 201
CuP7Sn Bal. 7 7 650-700 700 8 60 CuP 386 CP 302 ~ BCuP-9
Ag2CuP 2 Bal. 6,5 645-825 740 8,1 55 CuP 279 CP 105
Ag5CuP 5 Bal. 6 645-815 710 8,2 55 CuP 281 CP 104 BCuP-3
Ag15CuP 15 Bal. 5 645-800 700 8,4 54 CuP 284 CP 102 BCuP-5
Notes RoHS Compliant alloys. For copper-copper and copper-brass joints. For joining copper to copper no flux is necessary. These alloys are not suitable for joining ferrous materials, steels and nickel alloys. They are also not suitable to be used in sulfur containing atmospheres. Particularly good and clean joints can be obtained by using these alloys along with liquid flux (LI1/LI2) spread through the torch flame by vaporizer systems. Alloys with Silver are recommended for joints subject to vibrations. These alloys are available as rods, flux-coated rods, wires and rings.

Fluxes

FLUX AG4 General purpose – Very wide range of temperatures
FLUX LI1 For brazing with Vaporizer system, Medium Concentration
FLUX LI2 For brazing with Vaporizer system, Medium-High Concentration

Silver Based Alloys

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

Alloys

Ag12 12 48 40 0,15 800-830 8,4 48 Ag 212 AG 207
Ag20 20 44 36 0,15 690-810 8,7 43 AG 206
Ag30Sn 30 36 32 2 665-755 8,8 48 Ag 130 AG 107
Ag34Sn 34 36 27,5 2,5 630-730 9 48 Ag 134 AG 106
Ag35 35 32 33 685-755 9 48 Ag 235 BAg-35
Ag40Sn 40 30 28 2 650-710 9,1 44 Ag 140 AG 105 BAg-28
Ag45Sn 45 27 25,5 2,5 640-680 9,2 43 Ag 145 AG 104 BAg-36
Ag55Sn 55 21 22 2 630-660 9,4 44 Ag 155 AG 103
Ag56Sn 56 22 17 5 620-655 9,4 48 Ag 156 AG 102 BAg-7
Notes All the alloys in this table are cadmium-free and RoHS Compliant. They are suitable to join a wide range of ferrous and non ferrous metals (copper, brass, bronze, steel, stainless steel, nickel alloys, etc.), with the exception of aluminium and magnesium. Available as rods, flux coated rods, wires and rings (dimensions according to customer’s need).
Ag60Sn/1 60 30 10 600-730 9,8 Ag 160 AG 402 BAg-18
Notes Suitable for stainless steel in wet conditions/moisture rich environments.
Ag72Zn 72 28 710-730 8,4 44
Ag85Mn 85 15 960-970 10 Ag 485 AG 501 BAg-23
Notes Alloys without copper, ammonia resistant.
Ag85Mn is also suitable for stainless steel in wet conditions / moisture rich environments.

Fluxes

FLUX AG1 General purpose
FLUX AG4 General purpose – Very wide range of temperatures
FLUX AG7 General purpose. Also for Stainless Steel

Brass alloys

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

Alloys

Cu60Zn 60 Bal 0,3 875-895 8,4 40 Cu 470a CU 301
Cu59ZnSn 59 Bal 0,4 0,3 875-895 8,4 45 Cu 470 CU 302 RBCuZn-A
Cu59ZnAg 59 Bal 1 0,1 0,1 0,1 860-890 8,4 45
Cu48ZnNi10 48 Bal 10 0,3 890-920 8,7 54 Cu 773 CU 305 RBCuZn-D
Notes Brasses for high temperature brazing.
RoHS Compliant alloys. Available as rods, flux-coated rods, wires and rings.
Cu59ZnAg is suitable for galvanized steel.

Fluxes

FLUX BR1 Brazing with Brass
FLUX LI2 For brazing with Vaporizer system, Medium-High Concentration
FLUX LI3 For brazing with Vaporizer system, High Concentration

Aluminum and Zinc-Aluminum Alloys

Code Composition % Melting Range SOL-LIQ Standard
Al Si Mg Mn Zn °C DIN 1732 ISO 17672 AWS A5.10 EN 1044 AWS A5.8

Alloys

AlSi12 Bal 12 SG-AlSi12 4047
Notes Brazing of Aluminium.
AlZn78 22 78 441-471
AlZn98 2 98 380-405
Notes For copper-aluminium and brass-aluminium joints. Also available as flux-cored rods and wires (non-corrosive flux).

Fluxes

FLUX AL1/d Corrosive flux for flame brazing
FLUX AL6 Non-Corrosive flux for brazing with Zinc-Aluminium alloys