Industrial Silver and Base Metal Products


Silver Products

Fine silver and standard can be supplied in a variety of different manufactured forms: solid/fine silver and silver alloys, silver powder & silver gauze.

Silver for Industrial Applications

Standard Silver
Ag
92.5
Cu
7.5
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 780 - 890°C
This is an alloy of 92.5% silver and 7.5% copper and is the equivalent of the jewellery grade sterling silver.
Silver 99.99%
Ag
99.99
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
Johnson Matthey offers 99.99% silver in a range of product forms.
Silver 99.9%
Ag
99.9
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
Johnson Matthey 99.9% silver is the most widely used of the fine silvers and is available in all product forms. It can be supplied to a particular temper if required.
All fine silvers offer excellent thermal and electrical conductivity and freedom from oxidation but suffer from a surface film of silver sulphide particularly in industrial atmospheres.
Silver Gauze 99.99%
Ag
99.99
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
Johnson Matthey can supply silver catalyst gauzes used in the production of specific chemicals.
Silver Powder EC120
Ag
99.9
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
EC120 powder is 99.9% pure silver powder manufactured by electrochemical deposition of the silver crystals. The resulting powder has an irregular shape with very different conductive and packing properties to atomized silver powder.
Silver Powder EC300™
Ag
99.9
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
EC300™ powder is 99.9% pure silver powder manufactured by electrochemical deposition of the silver crystals. The resulting powder has an irregular shape with very different conductive and packing properties to atomised silver powder.

Silver and copper based infiltrants / binder alloys

Johnson Matthey supplies a range of silver and copper based alloys used as infiltrants or binder alloys in the production of specialised composite tools such as core drills and drill heads.

Infil-bond™40Ag
Ag
40
Cu
60
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
Johnson Matthey supplies a range of silver and copper based alloys used as infiltrants or binders in the production of specialised composite tools such as core drills and drill heads.

Infil-bond™ alloys are designed to melt and infiltrate into a powder matrix of hard abrasive materials binding them together and forming a wear resistant or abrasive component.

Infil-bond™40Ag is a 40% silver-copper alloy.
Infil-bond™30Ag
Ag
30
Cu
70
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
Johnson Matthey supplies a range of silver and copper based alloys used as infiltrants or binders in the production of specialised composite tools such as core drills and drill heads.

Infil-bond™ alloys are designed to melt and infiltrate into a powder matrix of hard abrasive materials binding them together and forming a wear resistant or abrasive component.

Infil-bond™30Ag is a 30% silver-copper alloy.
Infil-bond™20Ag
Ag
20
Cu
76
Ni
4
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
Johnson Matthey supplies a range of silver and copper based alloys used as infiltrants or binders in the production of specialised composite tools such as core drills and drill heads.

Infil-bond™ alloys are designed to melt and infiltrate into a powder matrix of hard abrasive materials binding them together and forming a wear resistant or abrasive component.

Infil-bond™20Ag is a 20% silver-copper alloy with an addition of 4% nickel.
Infil-bond™86Cu
Cu
86
Ni
2
Mn
12
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
Johnson Matthey supplies a range of silver and copper based alloys used as infiltrants or binders in the production of specialised composite tools such as core drills and drill heads.

Infil-bond™ alloys are designed to melt and infiltrate into a powder matrix of hard abrasive materials binding them together and forming a wear resistant or abrasive component.

Infil-bond™86Cu is a copper alloy with the addition of nickel and manganese.
Infil-bond™80Cu
Cu
80
Sn
20
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
Johnson Matthey supplies a range of silver and copper based alloys used as infiltrants or binders in the production of specialised composite tools such as core drills and drill heads.

Infil-bond™ alloys are designed to melt and infiltrate into a powder matrix of hard abrasive materials binding them together and forming a wear resistant or abrasive component.

Infil-bond™80Cu is an 80% copper-tin alloy.
Infil-bond™79Cu
Cu
79.2
Ni
10
Mn
5
Sn
5.5
Si
0.3
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
Johnson Matthey supplies a range of silver and copper based alloys used as infiltrants or binders in the production of specialised composite tools such as core drills and drill heads.

Infil-bond™ alloys are designed to melt and infiltrate into a powder matrix of hard abrasive materials binding them together and forming a wear resistant or abrasive component.

Infil-bond™79Cu is a special copper-nickel-manganese-tin alloy with a controlled addition of silicon alloy.
Infil-bond™70Cu
Cu
70
Ni
10
Mn
20
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
Johnson Matthey supplies a range of silver and copper based alloys used as infiltrants or binders in the production of specialised composite tools such as core drills and drill heads.

Infil-bond™ alloys are designed to melt and infiltrate into a powder matrix of hard abrasive materials binding them together and forming a wear resistant or abrasive component.

Infil-bond™70Cu is a copper-nickel-manganese alloy.
Infil-bond™60Cu
Cu
60
Zn
40
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
Johnson Matthey supplies a range of silver and copper based alloys used as infiltrants or binders in the production of specialised composite tools such as core drills and drill heads.

Infil-bond™ alloys are designed to melt and infiltrate into a powder matrix of hard abrasive materials binding them together and forming a wear resistant or abrasive component.

Infil-bond™60Cu is a 60% copper-zinc brass alloy.
Infil-bond™53Cu
Cu
53
Zn
8
Ni
15
Mn
24
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
Johnson Matthey supplies a range of silver and copper based alloys used as infiltrants or binders in the production of specialised composite tools such as core drills and drill heads.

Infil-bond™ alloys are designed to melt and infiltrate into a powder matrix of hard abrasive materials binding them together and forming a wear resistant or abrasive component.

Infil-bond™53Cu is a special copper-zinc-nickel-manganese alloy.

Electrical Contact Materials

Electrical contact materials can be supplied in a number of different forms including contact buttons or patches, wires, strips and rivets. Several different materials are also available:

  • Silver tin oxide electrical contact materials
  • Silver nickel electrical contact materials
  • Silver tungsten electrical contact materials
  • Copper tungsten electrical contact materials

Silver-Tin Oxide

Matthey D508
Ag
92
SnO2
8
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
This is a silver-tin oxide contact material. It has been introduced to replace silver cadmium oxide contact materials.
Matthey D5010
Ag
90
SnO2
10
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
This is a silver-tin oxide contact material. It has been introduced to replace silver cadmium oxide contact materials.
Matthey D5012
Ag
88
SnO2
12
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
This is a silver-tin oxide contact material. It has been introduced to replace silver cadmium oxide contact materials.

Silver-Tungsten

Matthey 20S
Ag
27
W
73
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
Information on this product will appear here soon. If you require more information on this product then please submit a request through the contact us section or this web site.
Matthey 35S
Ag
35
W
65
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
Matthey 50S
Ag
50
W
50
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C

Silver Nickel

Matthey D510
Ag
90
Ni
10
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
These materials are used in more heavy-duty applications than fine silver and have relatively low contact resistance coupled with high resistance to arc erosion. Their resistance to welding is better than that of fine silver, although inferior to that of silver cadmium oxide. The materials are produced by powder metallurgical techniques because silver and nickel are essentially insoluble. A major advantage of the lower nickel content alloys is that they are ductile enough for fabrication of contacts from wire by conventional coining techniques, and can also be direct welded.
Matthey D520
Ag
80
Ni
20
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
These materials are used in more heavy-duty applications than fine silver and have relatively low contact resistance coupled with high resistance to arc erosion. Their resistance to welding is better than that of fine silver, although inferior to that of silver cadmium oxide. The materials are produced by powder metallurgical techniques because silver and nickel are essentially insoluble. A major advantage of the lower nickel content alloys is that they are ductile enough for fabrication of contacts from wire by conventional coining techniques, and can also be direct welded.
Matthey D56
Ag
70
Ni
30
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
These materials are used in more heavy-duty applications than fine silver and have relatively low contact resistance coupled with high resistance to arc erosion. Their resistance to welding is better than that of fine silver, although inferior to that of silver cadmium oxide. The materials are produced by powder metallurgical techniques because silver and nickel are essentially insoluble. A major advantage of the lower nickel content alloys is that they are ductile enough for fabrication of contacts from wire by conventional coining techniques, and can also be direct welded.

Tungsten Copper

Matthey 10W3
W
72
Cu
28
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
Matthey 10W3 is a sintered copper-tungsten material manufactured by powder metallurgy. It forms dense composite offering hardness, wear resistance and a high softening temperature of tungsten combined with the good electrical conductivity of copper.
Matthey 20W3
W
76
Cu
24
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
Matthey 20W3 is a sintered copper-tungsten material manufactured by powder metallurgy. It forms dense composite offering hardness, wear resistance and a high softening temperature of tungsten combined with the good electrical conductivity of copper. 20W3 conforms to BS 4577B / 11.
Matthey 30W3
W
78
Cu
22
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
Matthey 30W3™ is a sintered copper-tungsten material manufactured by powder metallurgy. It forms dense composite offering hardness, wear resistance and a high softening temperature of tungsten combined with the good electrical conductivity of copper.
Matthey 20K3
Cu
33
WC
67
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
Matthey 20K3 is a sintered copper-tungsten carbide material manufactured by powder metallurgy. It forms dense composite offering hardness, wear resistance and a high softening temperature of tungsten combined with the good electrical conductivity of copper.

Resistance welding and high density tungsten materials

Products used for spot, seam and flash butt welding processes are available:

  • Copper alloy resistance welding materials
  • Copper tungsten materials
  • High density tungsten materials are used for a variety of engineering applications.
  • High density tungsten materials

Resistance Welding Materials

Matthey 100N
Cu
Bal.
Ni
0.8-1.3
Co
0.8-1.3
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
Matthey 100N is a copper-cobalt-nickel-beryllium resistance welding alloy. It has higher hardness and strength than Matthey 328 but with reduced electrical conductivity. Matthey 100N conforms to BS 4577 A3/1, BS EN Copper and Copper Alloys CuCo1Ni1Be – CW103C.
Matthey 328
Cu
Bal.
Cr
1
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
Matthey 328 is a chromium-zirconium-copper resistance welding alloy. The addition of zirconium in Matthey 328 increases the product life by reducing the absorption of the coating which is one of the main causes of failure in the chromium copper resistance welding alloys. This alloy conforms to BS 4577 A2/2.

High Density Tungsten

Matthey 10W3
W
72
Cu
28
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
Matthey 10W3 is a sintered copper-tungsten material manufactured by powder metallurgy. It forms dense composite offering hardness, wear resistance and a high softening temperature of tungsten combined with the good electrical conductivity of copper.
Matthey 20W3
W
76
Cu
24
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
Matthey 20W3 is a sintered copper-tungsten material manufactured by powder metallurgy. It forms dense composite offering hardness, wear resistance and a high softening temperature of tungsten combined with the good electrical conductivity of copper. 20W3 conforms to BS 4577B / 11.
Matthey 30W3
W
78
Cu
22
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
Matthey 30W3™ is a sintered copper-tungsten material manufactured by powder metallurgy. It forms dense composite offering hardness, wear resistance and a high softening temperature of tungsten combined with the good electrical conductivity of copper.
Matthey 20K3
Cu
33
WC
67
 
 
 
 
 
 
 
 
 
 
 
 
 -
 -
 Melting Range
 960°C
Matthey 20K3 is a sintered copper-tungsten carbide material manufactured by powder metallurgy. It forms dense composite offering hardness, wear resistance and a high softening temperature of tungsten combined with the good electrical conductivity of copper.

 
© Johnson Matthey 2017 - Tel. +44 (0)1763 253200 - Email: mj@matthey.com
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