Copper –Silver Alloys-Brazing Fluxes

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COPPER –SILVER BRAZING-ALLOYS AND FLUXES

Brazing is a versatile Method allowing different metals to join without melting the base metal. The Brazing Process is used extensively in the following Industries.

The Tool-Making Industry

  • In tool manufacture
  • For carbide tipped saws
  • For diamond segment tipped saws
  • For spectacle frames
  • For medical instruments
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Refrigeration Engineering and Air Conditioning Technology

  • Air conditioning equipment
  • Refrigeration equipment
  • Heat exchangers
  • Heating systems
  • Taps/Facets

Automotive Power Engineering and Plant Construction

  • Electrical
  • Motor vehicles and accessories
  • Mechanical engineering
  • Measuring and Control Technology
  • Hydraulics

We supply a wide range of Brazing alloys to meet most Industrial Applications

 

Product  Application/Features  Technical details  Form of delivery 
850-F 

850-B

Our most versatile brazing rod 

High silver content (56 %) provides the  best combination of low melting tempera ture, high strength and excellent capil lary flow, good color match on stainless  steel. Use on all ferrous and non-ferrous  metals (not for white metals). Ideal for  application in the food industry (dairies,  breweries, bottling companies, hospitals,  manufacturing of lamps, etc.)

Melting range:630-660 ºC Tensile strength:430N/ mm² 

Elongation:>25 % 

DIN EN 1044: 

Analysis:Ag,Zn,Sn,Si,Cu

B RODS. 

Ø 1,5-2,0-2,5-3,0  F RODS  

Ø 1,5 AND 2,0 mm

845 –F 

845-B 

A high silver content (45 %) low tempera ture brazing rod for joining steel, stainless  steel, copper, nickel and tungsten alloys.  Does not contain cadmium and can  therefo-re be used on food or medical  equipment. Tin free composition. Highest  crack resi-stance. Good ability to fill joint  gaps that cannot be tightly controlled. Melting range:640-680 ºC Tensile strength:430N/ mm² 

Elongation:>25 % 

DIN EN 1044:AG 104 

Analysis:Ag, Zn, Sn, Si,  Cu

B RODS. 

Ø 1,5-2,0-2,5-3,0  F RODS  

Ø 1,5 AND 2,0 mm

834-F 

843-B

A general purpose economical silver  brazing alloy for brazing copper brass,  bronze and steels. 

Especially suitable for maintenance and  production brazing when joint gaps are  more than 0.15 mm

Melting range:640-730 ºC Tensile strength:430N/ mm² 

Elongation:>25 % 

DIN EN 1044: AG 106 Analysis:Ag,Zn,Sn,Si,Cu

B RODS. 

Ø 1,5-2,0-2,5-3,0  F RODS  

Ø 1,5 AND 2,0 mm

Bronze Type brazing alloys for brazing steel, cast-iron, galvanized steel

Product  Application/Features  Technical details  Form of delivery 
842 BB 

842 FB

Multi purpose brazing rod. For strong  joints and build-ups on copper,  brass, bronze, steel, galvanized and  cast iron. Melting range:875-900ºC Tensile strength:350-400N/ mm² 

DIN EN 1044:CU 301

B (bare rods)Ø 2,0,3,0  F (flux coated) Ø  

2,5mm  

Length 500 mm

860 BB 

860 FB

Silver containing brazing alloy for  joining steel, copper alloy and galva nized steel 

Excellent bonding and flowing, high  strength 

Unique flux coating allows fast and  easy brazing 

Melting range:845-865ºC Tensile strength:400-450 N/ mm² 

DIN EN 1044: 

B (bare rods)Ø 2,0,3,0  F (flux )Ø 2,5mm  Length 500 mm
865 BB 

865 FB

Special nickel bronze alloy for high  strength joining and build-ups. Use  for overlay-ing and build-up of gear  teeth, bearings, shafts, valve seats,  

wedge bars and steering knuckles,  furniture and bicycle assemblies, at taching carbide cutting tips.

Melting range:845-865ºC Tensile strength:400-450 N/ mm² 

DIN EN 1044: CU 305

B (bare rods)Ø 2,0,3,0  F (flux coated) Ø  

2,5mm  

Length 500 mm

BRAZING ALLOYS FOR JOINING COPPER AND COPPER ALLOYS  

Product  Application/Features  Technical Data  Sizes 

mm

830  Silver containing self fluxing brazing rod for cop per and copper alloys. High strength and ductility,  excellent vibration resistance. , good electrical con ductivity. For use on air conditioning and refrigeration  tubing, electric motor repairs. Radiators, heat ex changers bus bars etc. 

May be used for operating temperatures up to 150 0 C

Melting range:630-660 ºC Tensile strength:430N/mm² Elongation:>25 % 

DIN EN 1044: 

Analysis:Ag, Cu, P

1.5 

2.0 

3.0

820  Economy type copper phosphor alloy rod for cop per. 

Self fluxing on copper  

For use on air conditioning and refrigeration tubing,  electric motor repairs. Radiators, heat exchangers bus  bars etc. 

May be used for operating temperatures up to 150 0 C

Melting range:630-660 ºC Tensile strength:430N/mm² Elongation:>25 % 

DIN EN 1044: 

Analysis: Cu, P

1.5 

2.0 

3.0

Low temperature joining (soldering) of different metals 

Product  Application/Features  Technical details
22 B  A high strength solder that is free of cadmium, zinc and lead. The  deposit stays bright and shiny, therefore it has a close color-match to  stainless steel. Soldered joints have good corrosion resistance and can be  plated. Ideal for use on stainless steel, brass, bronze, copper, nickel alloys  and carbon steels. Typical applications are food and dairy equipment,  instruments, jeweler manufac-turing, sanitary apparatus, electrical con nections and general maintenance repairs. 22B is a bare wire and is to  be used with flux 30 FL Melting range:220-240 ºC Tensile strength:~50 MPa Elongation:>25 % 

DIN EN 1044: 

Analysis:,Sn,Ag 

Sizes: 2 and 3 mm 

FLUXES FOR BRAZING AND SOLDERING 

Product  Application/Features  Technical details  Packaging
810 AG  PASTE silver solder flux. Provides maxi mum wetting and cleaning action on a variety  of metals. Use with 850,845,840,5045 . silver  solder and other low temp brazing rods  Active range from 550 -800 °C  Composition:Boric 

Acid, Borates, 

flu borates

1.00 kg 
810 HT  High temperature flux for silver brazing of  nickel base alloys, mild steels, austenitic and  martensitic stainless steels, tungsten carbide,  Also recommended for induction brazing  Active range from 550 -800 °C  Composition: 

Boric Acid, Borates, 

flu borates

1.00 kg  

PA paste; 

PD powder

810 CU 

(21 FL)

General purpose brazing flux in paste form.  Can be used with all kinds of brazing rods for  brazing steel, cast-iron, brass, bronze. Active  range from 800 0 C to 11000 C. Active range from 800 to 1100 C.  Composition: 

Boric Acid, Borates, 

flu borates

1.00 kg 
40 FL 

40 NC

Universal aluminum brazing flux. Has ex cellent wetting properties on all aluminum and  Aluminum alloys. 

Note: 40 NC with non corrosive flux residue.

Temp. range 440 – 650 °C  

Composition:Lithium chloride Sodium chloride 

Potassium chloride

1.00 kg 
30 FL  Universal flux for soft soldering. Rapidly  dissolves oxides. Can be used on all metals  except aluminum. For use with all soft-solders  on stainless steel, copper, silver, galvanized  steel.  Temp. range 200 – 300 °C  1.00 kg