tungsten copper alloys These alloys have a lot of resistance to electric arc, good electrical conductivity, good thermal conductivity and low thermal expansion.

TUNGSTEN COPPER ALLOYS

DESCRIPTION

These alloys are essential for combining the high electrical conductivity of copper with the mechanical strength of tungsten. By infiltrating a tungsten skeleton with a copper wire, it is possible to combine the high melting point and mechanical strength of tungsten with the electrical conductivity of copper. In these combinations, copper is infiltrated with weight percentages ranging from 10% to 40%. They are typically used as high voltage electrical contacts, EDM electrodes and balance weights. In addition, their exceptional workability combined with good thermal conductivity and low thermal expansion allows many applications in different sectors: they are very resistant to electric arc, have good electrical conductivity, good thermal conductivity and low thermal expansion. There are several markets on which these alloys are applied: for example for lightning rods and power dispersion for wind turbines and in components for pantographs of trams and trams.

ALLOYS BENEFITS

  • Excellent resistance to electric arc

  • Exceptional electrical conductivity

  • Good mechanical characteristics

  • Good runnability

  • Good thermal conductivity

  • Low thermal expansion

VEDI TABELLE TECNICHE

CHEMICAL PROPERTIES

Tungsten copper alloys
NameClassW Content [%]Binders
WOLKUP 90W90 Cu1090Cu Ni
WOLKUP 85WU85 Cu1585Cu Ni
WOLKUP 80WU80 Cu2080Cu Ni
WALKUP 75W75 Cu25 75Cu Ni
WOLKUP 70W70 Cu30 70Cu Ni
WOLKUP 60W60 Cu40 60Cu Ni
WOLKUP 50W50 Cu50 50Cu Ni

PHYSICAL PROPERTIES

Tungsten copper alloys
NameDensity [g/cm3]Thermal conductivity [W/m·k]Electrical conductivity [10^6 S/m]Medium warmth expansion coefficient [20-800°C]
WOLKUP 9016.9 - 17.5140 - 17018 - 225,0
WOLKUP 8515.7 - 16.3140 - 18018 - 226,9
WOLKUP 8015.3 - 15.9150 - 18018 - 238,8
WALKUP 7514.7 - 15.3160 - 19019 - 249,5
WOLKUP 7014.0 - 14.6170-20020 - 2410,3
WOLKUP 6012.5 - 13.1190 - 22022 - 2711,9
WOLKUP 5011.5 - 12.1Upon requestUpon requestUpon request

MECHANICAL PROPERTIES

Tungsten copper alloys
NameYield strenght Rp 0,2 [MPa]Tensile strenght Rm [MPa]Module of elasticity [kN/mm^2]Hardness [HV10]
WOLKUP 90> 680> 820280 - 300250 - 290
WOLKUP 85> 640>750260 - 280230 - 280
WOLKUP 80> 600> 720230 - 260210 - 260
WALKUP 75> 590> 710220 - 240180 - 220
WOLKUP 70> 520> 610210 - 230180 - 220
WOLKUP 60> 450> 530190 - 210170 - 200
WOLKUP 50Upon requestUpon requestUpon requestUpon request