Weison Advanced Materials
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Tungsten, Tungsten Alloy and Molybdenum Products

Tungsten Copper Electrical Contacts

Copper Tungsten Contacts

Tungsten-Copper alloy is a two-element alloy mainly based on tungsten and supplemented by copper. It is a composite metal material. As metal copper and metal tungsten have a large difference in physical properties, it’s impossible to adopt casting process for production. Now the industry generally uses copper infiltration technology for production. Our infiltration copper technology is of the mostly historical research and skillful manufacturing experience in China.

Physical Properties of Tungsten & Copper

PropertiesDensity
g/cm3
Thermal
Expansion
Coefficient
Heat
Conductivity
w/(m·k)
Thermal
Capacity
J/(kg°C)
Modulus of
Elasticity
GPa
Poisson DensityMelting Point °CStrength
MPa
Tungsten19.324.51741364110.283410550
Copper8.9316.64033851450.341083120

Except for particular specify, our tungsten copper sheet hold common tolerance, thickness(0,+0.7)mm,length(0,+3)mm.

Physical & Mechanical Properties of Tungsten Copper Alloy Sheeting

ItemChemical
composition
% --Cu
Chemical
composition
%-Impurity
Chemical
composition
%-W
DensityTRSResistivityElectric
Conductivity
Hardness
WCu5050±2.0≤0.5allowance11.9-12.3390≤3.2≥55115
WCu4040±2.0≤0.5allowance12.8-13.0480≤3.7≥47140
WCu3030±2.0≤0.5allowance13.8-14.4790≤4.1≥42175
WCu2020±2.0≤0.5allowance15.2-15.6980≤5.0≥34220
WCu1010±2.0≤0.5allowance16.8-17.21160≤6.5≥27260
WCu77±2.0≤0.5allowance17.3-17.81120≤7.0≥26275