Typical Properties of Tungsten Copper, Tungsten Silver
Typical Properties of Tungsten Copper, Tungsten Silver
|
Nominal Composition %
Weight |
Rockwell Hardness |
Electrical Conductivity % IACS |
Ultimate Tensile Strength PSI |
Cross Breaking Strength PSI |
Density g/cc |
Typical Resistance Welding Applications |
|
55% Tungsten
45% Copper |
79 B |
55 |
63,000 |
110,000 |
12.50 |
Flash and butt welding die inserts requiring high electrical and thermal conductivity. Electrode facings for the welding of stainless steel. |
|
68% Tungsten
32% Copper |
88 B |
52 |
75,000 |
130,000 |
13.93 |
Flash and butt welding die inserts requiring high electrical and thermal conductivity. Electrode facings for the welding of stainless steel. |
|
68% Tungsten
32% Copper |
88 B |
52 |
75,000 |
130,000 |
13.93 |
Flash and butt welding die inserts requiring high electrical and thermal conductivity. Electrode facings for the welding of stainless steel. |
|
70% Tungsten
30% Copper |
90 B |
50 |
85,000 |
140,000 |
14.18 |
Light duty projection welding dies where weld pressures are medium to light. |
|
75% Tungsten
25% Copper |
94 B |
48 |
90,000 |
150,000 |
14.70 |
Used for facing and inserts for flash and butt welding dies, projection welding electrodes, seam welding bearing inserts, facings for electro-forming and electro-forging dies. Often used for EDM electrodes for greater wear ratios. |
|
78% Tungsten
22% Copper |
96 B |
46 |
94,000 |
160,000 |
15.12 |
Used where a slightly harder material is required for the same applications as CW75. |
|
80% Tungsten
20% Copper |
98 B |
44 |
96,000 |
170,000 |
15.56 |
Heavy duty projection welding electrodes, die facing for electro-forming and electro-forging, also facings for upsetting of rivets & studs. |
|
50% Tungsten
50% Silver |
70 B |
65 |
|
|
13.4 |
Used for arcing contacts and plates, arc runners, and current carrying members |
|
65% Tungsten
35% Silver |
87 B |
53 |
|
|
14.5 |
Used for arcing contacts and plates, arc runners, and current carrying members |
|
74% Tungsten
26% Silver |
90 B |
47 |
|
|
15.5 |
Used for arcing contacts and plates, arc runners, and current carrying members |
|
50% Tungsten-Carbide 50% Copper |
94 B |
47 |
70,000 |
140,000 |
11.27 |
Light duty projection welding dies where pressures are not extreme but where abrasion may be encountered. |
|
56% Tungsten-Carbide 44% Copper |
99 B |
42 |
75,000 |
160,000 |
11.67 |
Where abrasion is encountered for heavy duty projection welding electrode and die facings for electro-forming and electro-forging. |
|
70% Tungsten-Carbide 30% Copper |
37 C |
30 |
85,000 |
180,000 |
12.60 |
An extremely hard material highly resistant to wear, for electro-forging and upsetting. Impractical to machine and should be ground. |
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