Bayville Chemical Supply Company Inc 70-G East Jefryn Boulevard Deer Park, New York, 11729 USA Telephone: 631-586-4309 Fax: 631-254-5591 E-Mail:
Bayville Chemical Supply Company Inc70-G East Jefryn BoulevardDeer Park, New York, 11729  USA           Telephone: 631-586-4309      Fax: 631-254-5591      E-Mail: 

Tungsten – Copper Alloy

(W-80 wt% / Cu 20 wt%)


High temperature furnace components, heat sinks, EDM electrodes, high-voltage discharge tubes, high voltage arc contacts, electrical contacts, vacuum contacts, electrodes for resistance welding and spark erosion, leaders, balance weights, dies for castings, spreaders, microwave carriers, hermetic package bases and housings, ceramic substrate carriers, medical components, heating elements, high speed tools.



The electrical and thermal properties of the alloy vary with different proportions. Copper increases the thermal conductivity, which is a main consideration when being used in circuit breakers. Electrical resistivity, with an increase in the percentage of tungsten present in the alloy, ranges from 3.16 at 55% tungsten to 6.1 when the alloy contains 90% tungsten. An increase in tungsten leads to an increase in ultimate tensile strength up until the alloy reaches 80% tungsten and 20% copper with an ultimate tensile strength of 663 MPa. After this mixture of copper and tungsten, the ultimate tensile strength then begins to decrease rapidly.



20 wt% (+/- 2 wt%)


15.5 gm/cm3

Conductivity (IACS)



5.0 μ maximum

Hardness (HB)

220 Kgf/mm2

Bend Strength

736 MPa

Coefficient of thermal Expansion

8.8 x 106 k1

Thermal Conductivity

180 W/m-k-1


Where to Find Us:

Bayville Chemical
70 East Jefryn Boulevard
Suite G
Deer Park, NY 11729

Phone: 631 586-4309

What's New

New larger location

As of August 2014, we have moved to this new, larger, modern facility to better service your needs.


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