Bedra

Filler materials for brazing and welding

The tailor-made product for every application

For more than 130 years we have been synonymous with innovative high-tech precision wires. From our plants in Heuchelheim and Herborn we serve the needs of our customers all over the world. We have developed the bercoweld® series for brazing and welding copper and copper alloys. This complex range provides the right product for every application.

It currently comprises more than 20 alloys of the following material groups:

  • Low-alloy copper alloys
  • Tin bronzes
  • Aluminum bronzes
  • Copper-nickel alloys
  • Special alloys

No matter whether you prefer MIG/MAG brazing or welding, TIG welding, laser and plasma brazing, or wire flame spraying: The bercoweld® range is as diverse as your applications. This is one reason why renowned companies from the automotive industry, plant construction, and the offshore and onshore sectors rely on bercoweld® as a fundamental component of an innovative joining technology.

Our applications

  • Automotive

  • Railway track construction

  • Shipbuilding

  • Agricultural machinery

  • Industry

  • Construction

Automotive

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Automotive

Railway track construction

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Railway track construction

Shipbuilding

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Shipbuilding

Agricultural machinery

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Agricultural machinery

Industry

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Industry

Construction

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Construction

Optimizing welding and brazing processes

This technology offers significant advantages. The automotive industry has impressively demonstrated how galvanized sheets can be joined with copper wire without the need for costly reworking. Here, so-called tailored blanks, tailor-made components made from thin sheets of different qualities are laser welded with bercoweld® and hard or high-temperature brazed. Subsequent treatment and galvanizing of the joint seam are no longer necessary, but the corrosion protection remains intact. This allows enormous cost and energy savings. The advantages of brazing with copper alloys at a glance:

  • Optimal gap bridging
  • Low joining temperatures
  • Low energy consumption
  • Low heat penetration reduces distortion of the base material
  • No galvanizing of the joint required

In terms of numbers, working with copper brazing wires can result in savings of up to 38 percent in manufacturing costs compared to conventional steel wires. We can look similarly at energy demand: The savings potential here is up to 26 percent. In the context of rising energy prices, in particular due to the imminent taxation of CO2emissions, this area is of particular importance.

bercoweld® welding and brazing wires are available in all common designs: Spools (plastic or wire basket), barrels, rods, and rings. Upon request, rods are also available in embossed versions – even in the smallest batch sizes and in special alloys according to customer requirements.

With the innovative bedrabox you can further increase your productivity. If you opt for bercoweld® from the innovative bedrabox, the high filling quantity and continuous wire run-off speed mean that the time-consuming work of changing spools is no longer necessary. So downtimes in production can be enormously reduced.

 

Our highlights

bercoweld® A8 (AlBz8)

  • Standard alloy for galvanized sheets and ferritic steels
  • Solenoid valves, build-up and join welding on aluminum bronzes

Very suitable for hard soldering and welding of galvanized steels. Very good corrosion and wear resistance. Preheating is recommended for large workpieces.

To the alloy

bercoweld® S2 (COMAS)

  • Specially developed material with reduced Si content for brazing galvanized sheet metal
  • Better flowing than bercoweld® S3

With the bercoweld S2 wire electrode, welding and brazing processes in automotive engineering can be significantly optimized. The copper brazing wire offers even better functionalities such as optimized flow properties, better gap bridging and a higher processing speed.

To the alloy

bercoweld® S3 (CuSi3Mn)

  • Galvanized body panels in the automotive industry
  • Coatings on low-alloy steels, solenoid valves, switch cabinets

Galvanized body panels in the automotive industry, coatings on low-alloy steels, solenoid valves, switch cabinets.

To the alloy

Overview of our product program

Low-alloy copper alloys

bercoweld® K3 (SF-Cu)

  • Oxygen-free special copper wire
  • Joining gray cast iron and steel, copper connections

To the alloy

bercoweld® K5 (CSSM)

  • Sn-alloyed copper wire
  • Especially suitable for build-up and join welding on copper
  • Grey cast iron and steels possible, galvanized sheet metal

To the alloy

bercoweld® K8/K9 (CuAg/W/G)

  • Copper-silver material
  • Especially suitable for build-up and join welding on copper
  • Preheat to 450 degrees Celsius for large workpieces

bercoweld® K8bercoweld® K9

bercoweld® S2 (COMAS)

  • Specially developed material with reduced Si content for brazing of galvanized sheets
  • Better flowability than bercoweld® S3

To the alloy

bercoweld® S3 (CuSi3Mn)

  • Galvanized body panels in the automotive industry
  • Coatings on low-alloy steels, solenoid valves, switch cabinets

To the alloy

Tin bronzes

bercoweld® B6 (Bl66)

  • Repairs on large copper parts or bronzes, oven soldering, solenoid valves, heat exchangers, slide rails, bearing bushings

To the alloy

bercoweld® B8 (Bl80)

  • Repairs of bronzes, oven soldering, solenoid valves
  • Also suitable for galvanized sheet metal, slide rails, and bearing bushings

To the alloy

bercoweld® B10 (BS100)

  • Specially developed alloy for galvanized sheets in the automotive industry

To the alloy

bercoweld® B12 (B130)

  • Welding of all kinds of copper materials
  • Application of bearing bushings and slide rails
  • Highest hardness for bronzes

To the alloy

bercoweld® BS60 (BS60)

  • Specially developed alloy for galvanized sheets in the automotive industry

To the alloy

Aluminum bronzes

bercoweld® A300 (MAXAL300)

  • High-strength alloy
  • Spark-proof
  • Seawater, wear and abrasion resistant
  • Resistant to cavitation and erosion
  • Build-up and join welding on aluminum bronzes
  • Especially for ship propellers, glide bars, raceways, valve control housings

To the alloy

bercoweld® A35 (AlBz35)

  • High-strength alloy
  • Resistant to seawater, wear and abrasion
  • Resistant to cavitation and erosion
  • Build-up and join welding on aluminum bronzes
  • Especially for ship propellers, slide rails, raceways, valve control housings

To the alloy

bercoweld® A52 (AlBz5Ni2)

  • Specially developed alloy for joining galvanized sheet metal and ferritic steels
  • Solenoid valves, shipbuilding, containers, rail car construction

To the alloy

bercoweld® A8 (AlBz8)

  • Standard alloy for galvanized sheets and ferritic steels
  • Solenoid valves, build-up and join welding on aluminum bronzes

To the alloy

bercoweld® A822 (AlBz8MNF)

  • Seawater and corrosion-resistant
  • Build-up and join welding on aluminum bronzes
  • Solenoid valves, shipbuilding, gray cast iron, galvanized steels, running surfaces, bearing parts, fittings, pump housings

To the alloy

bercoweld® A10 (AlBz9Fe)

  • Seawater and corrosion-resistant
  • Build-up and join welding on aluminum bronzes
  • Also suitable for galvanized sheet metal, solenoid valves, shipbuilding, running surfaces, bearing housings

To the alloy

bercoweld® A922 (AlBz9Ni)

  • Seawater and corrosion-resistant
  • Build-up and join welding on aluminum bronzes
  • Solenoid valves, shipbuilding, gray cast iron, galvanized steels, running surfaces, bearing parts, fittings, pump housings

To the alloy

Copper-nickel alloys

bercoweld® N10 (CuNi10Fe)

  • Especially suitable for joints and coatings of CuNi materials up to 30 percent
  • Ni corrosion-resistant
  • Shipbuilding, pipelines, chemical industry

To the alloy

bercoweld® N30 (CuNi30Fe)

  • Particularly suitable for joints and coatings of CuNi materials up to 30 percent Ni
  • Corrosion-resistant
  • Shipbuilding, piping, chemical industry
  • Even higher resistance to any type of attack

To the alloy

Special alloys

bercoweld® K1 (E-Cu58)

  • Oxygen-containing copper alloy
  • Especially for build-up and join welding on copper

To the alloy

bercoweld® K2 (OF-Cu)

  • Oxygen-free copper alloy
  • Especially for build-up and join welding on copper, oven soldering, shaped solder pads

To the alloy

bercoweld® M122 (CuMn12Ni2)

  • Special alloy for solenoid valves
  • Also suitable for galvanized sheet metal

To the alloy

Calculation of running length

The following tables provide an example calculation of running length for the bercoweld®  alloys S3 and A8.

  15 kg spool 15 kg spool 15 kg spool 15 kg spool 200 kg drum/spool 200 kg drum/spool 200 kg drum/spool
Diameter 0,8 mm 1 mm 1,2 mm 1,6 mm 1 mm 1,2 mm 1,6 mm
  Wire length Wire length Wire length Wire length Wire length Wire length Wire length
S3 (Density: 8,5 gr/m³) 3.515 m 2.248 m 1.564 m 878 m 29.974 m 20.814 m 11.709 m
A8 (Density: 7,7 gr/m³) 3.877 m 2.482 m 1.723 m 969 m 33.088 m 22.978 m 12.925 m

Alloy overview as PDF document

In the following document you will find the alloy overview of the bercoweld®  series.

Alloy overview

 

Please contact me and my team

Berkenhoff GmbH (headquarters)

  • Kinzenbach plant
  • Berkenhoffstrasse 14
  • 35452 Heuchelheim
  • Germany

Berkenhoff GmbH

  • Merkenbach plant
  • Rehmühle 1
  • 35745 Herborn
  • Germany

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