Brazing Pastes and Powders


Our brazing pastes consists of a filler metal alloy in powder form and where appropriate a flux. These components are held together in a uniform paste by a specially formulated binder system. The end product is a custom made brazing or soldering solution that can offer unique benefits. In particular brazing and soldering pastes are used in production where there is a need to manufacture large numbers of joints.The benefits of using a paste product for soldering or brazing can often only be achieved with the full support of technical teams that understand the products; we are well placed to offer this support globally.

 

Silver-flo Brazing Pastes

Silver-flo™ 56 Brazing Paste
Ag
56
Cu
22
Zn
17
Sn
5
 
 
 
 
 
 
 
 
 ISO 17672
 Ag 156
 Melting Range
 618 - 652°C
Silver-flo™ 56 Brazing Paste is a custom made solution for improving the quality and production rate of brazing operations. It consists of Silver-flo™ 56 powder, a free-flowing, low melting silver brazing filler metal, combined with a flux-binder system to form a smooth dispensible paste.
AMS/AWS A5.8
AMS 4763, AWS Bag-7

EN1044:1999
AG102

Silver-flo™ 55 Brazing Paste
Ag
55
Cu
21
Zn
22
Sn
2
 
 
 
 
 
 
 
 
 ISO 17672
 Ag 155
 Melting Range
 630 - 660°C
Silver-flo™ 55 brazing paste is a specially formulated paste product intended for use in semi- or fully automated brazing processes or where the use of a paste offers other advantages. It combines Silver-flo™ 55, a filler metal with excellent brazing characteristics, in powder form with a flux-binder system selected to match an individual application. The resulting product is a fully dispensable custom-made brazing paste.
EN1044:1999
AG103

Silver-flo™ 40 Brazing Paste
Ag
40
Cu
30
Zn
28
Sn
2
 
 
 
 
 
 
 
 
 ISO 17672
 Ag 140
 Melting Range
 650 - 710°C
Silver-flo™ 40 brazing paste is a specially formulated paste product intended for use in semi- or fully automated brazing processes or where the use of a paste offers other advantages. It combines Silver-flo™ 40, a filler metal with good general brazing characteristics, in powder form with a flux-binder system selected to match an individual application. The resulting product is a fully dispensable custom-made brazing paste.
EN1044:1999
AG105

Silver-flo™ 24 Brazing Paste
Ag
24
Cu
43
Zn
33
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 740 - 800°C
Silver-flo™ 24 brazing paste is a specially formulated paste product intended for use in semi- automated brazing processes or where the use of a paste offers other advantages. It combines Silver-flo™ 24, a comparatively high melting temperature silver brazing filler metal, in powder form with a flux-binder system selected to match an individual application. The resulting product is a fully dispensable custom-made brazing paste.

 

Argo-braze Brazing Pastes

Argo-braze™ 502 Brazing Paste
Ag
50
Cu
20
Zn
28
Ni
2
 
 
 
 
 
 
 
 
 ISO 17672
 Ag 450
 Melting Range
 660 - 705°C
Argo-braze™ 502 brazing paste is a specially formulated paste product intended for use in semi or fully automated brazing processes, or where the use of a paste offers other advantages. It combines Argo-braze™ 502, a filler metal particularly suitable for tungsten carbide and PCD, in powder form with a flux-binder system selected to match an individual application. The resulting product is a fully dispensable, custom-made brazing paste ideal for brazing tungsten carbide and PCD segments.
AMS/AWS A5.8
4788, BAg-24

Argo-braze™ 56 Brazing Paste
Ag
56
Cu
27.25
Ni
2.25
In
14.5
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 600 - 711°C
Argo-braze™ 56 brazing paste was developed to provide a paste solution for brazing of stainless steel where potential problem from interfacial corrosion on stainless steel components exposed to wet conditions in service might otherwise occur.
Argo-braze ™ 632 Brazing Paste
Ag
63
Cu
28.5
Ni
2.5
Sn
6
 
 
 
 
 
 
 
 
 ISO 17672
 AG 463
 Melting Range
 691 - 802°C
Argo-braze™ 632 brazing paste was as formulated provide a paste solution for brazing of stainless steel where potential problem from interfacial corrosion on stainless steel components exposed to wet conditions in service might otherwise occur. AMS/AWS A5.8
4774, BAg-21

Argo-braze™ 72 Brazing Paste
Ag
72
Cu
28
 
 
 
 
 
 
 
 
 
 
 
 
 ISO 17672
 AG 272 V1
 Melting Range
 778°C
Argo-braze™ 72V Brazing Paste is a specially formulated paste product. The product consists of Argo-braze™ 72V, a silver-copper brazing filler metal and a binder system which is normally not flux containing so suitable for furnace brazing applications.


AMS/AWS A5.8
BAg-8

EN1044:1999
AG401

 

Copper-based Brazing Pastes

B Bronze™ Brazing Paste
Cu
97
Ni
3
 
 
 
 
 
 
 
 
 
 
 
 
 ISO 17672
 Cu 186
 Melting Range
 1081 - 1101°C
Johnson Matthey B Bronze™ paste is a specialised copper based brazing paste. It is mainly used as a furnace-brazing paste for use on mild steel components where joint gaps are variable or too wide to use a standard copper paste.

EN1044:1999
CU105

C Bronze™ Brazing Paste
Cu
86.85
Ni
2.15
Mn
11
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 965 - 995°C
C Bronze™ brazing paste was developed for furnace-brazing and is used for brazing carbide tipped drills. It contains manganese and nickel both of which provide improved wetting and bonding on cemented tungsten carbides. For this type of application with an air-hardening type of steel, simultaneous heat treatment of the tool shank, at temperatures between 800-1040°C is possible.
Copper 99.9% Brazing Paste
Cu
99.9
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 ISO 17672
 Cu 110
 Melting Range
 1081°C
Johnson Matthey Copper 99.9% is a standard copper-based brazing paste. It was developed as a furnace-brazing paste and is a economic solution for brazing mild steel components with joints that provide an interference fit.
AMS/AWS A5.8
BCu-1

EN1044:1999
CU101

 

Miscellaneous Brazing Products

Silver-flo™ 55 Paint
Ag
55
Cu
21
Zn
22
Sn
2
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 630 - 660°C
Silver-flo™ 55 Paint consists of a silver brazing filler metal powder (Silver-flo™ 55) and a brazing flux (Easy-flo™ Flux Powder) combined in a volatile organic solvent. The proportions of filler metal to flux are optimised to make the paint suitable for brazing small components by most heating methods.

The silver brazing filler metal in this product - Silver-flo™ 55, is cadmium-free. It combines a low brazing temperature with a short melting range, is very free flowing and produces neat joints with small fillets. These characteristics make it an excellent general purpose silver brazing filler metal.

Joints made with Silver-flo™ 55 Paint are suitable for seawater applications, being resistant to dezincification. The optimum joint gap for this filler metal at brazing temperature is normally 0.05-0.15mm.

 
Johnson Matthey & Brandenberger AG - Tel.-Nr. +41 44 307 1930 - Email: gerneral_request@jmmetaljoining.com
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