Tungsten Copper (W-Cu) Series

Product Classification:

Tungsten copper (W-Cu)

Keyword:

AlSiC IGBT substrate AlSiC heat sink


Product Features

Tungsten copper material combines the advantages of metal tungsten and copper, of which tungsten has high melting point (tungsten melting point is 3410 ℃, copper melting point is 1080 ℃) and high density (tungsten density is 19.25g/cm3, copper density is 8.92g/cm3); Copper has excellent electrical and thermal conductivity, tungsten copper alloy (the general composition range is WCu7 ~ WCu50) has uniform microstructure, high temperature resistance, high strength, arc ablation resistance, and high density; moderate electrical and thermal conductivity, and is widely used in military high-temperature resistant materials, high-voltage switch electrical alloys, Electro-machining electrodes, microelectronic materials, as parts and components are widely used in aerospace, aviation, electronics, electric power, metallurgy, machinery, sports equipment and other industries.

Product Details


Tungsten copper material combines the advantages of metal tungsten and copper, of which tungsten has high melting point (tungsten melting point is 3410 ℃, copper melting point is 1080 ℃) and high density (tungsten density is 19.25g/cm3, copper density is 8.92g/cm3); Copper has excellent electrical and thermal conductivity, tungsten copper alloy (the general composition range is WCu7 ~ WCu50) has uniform microstructure, high temperature resistance, high strength, arc ablation resistance, and high density; moderate electrical and thermal conductivity, and is widely used in military high-temperature resistant materials, high-voltage switch electrical alloys, Electro-machining electrodes, microelectronic materials, as parts and components are widely used in aerospace, aviation, electronics, electric power, metallurgy, machinery, sports equipment and other industries.

Performance Density g/cm3 Thermal expansion coefficient 10-6/℃ Thermal conductivityW/(m · k) Heat capacityJ/(kg·℃) modulus of elasticityGPa Poisson density Melting point ℃ Strength MPa
Tungsten 19. 25 4. 5 174 136 411 0. 28 3410 550
Copper 8. 92 16. 6 403 385 145 0. 34 1083 120

military high temperature resistant material
Tungsten copper alloy is used as nozzle, gas rudder, air rudder and nose cone of missile and rocket engine in aerospace. Its main requirements are high temperature resistance (3000K ~ 5000K) and high temperature resistant air flow scouring ability. It mainly uses sweating refrigeration effect (melting point of copper is 1083 ℃) formed by volatilization of copper at high temperature to reduce the surface temperature of tungsten copper and ensure its use under extreme conditions of high temperature.

Brand Copper Cu Tungsten W Total Impurities Density g/cm3(20 ℃) Conductivity%IACS melting temperature (℃) Bending strengthMpa Hardness
CuW70 28-32 Allowance < 0.5 13.8-14 ≥ 42 ≥ 700 ≥ 667 ≥ 184

high temperature tungsten copper performance

Brand Copper content Relative density of tungsten skeleton Material densityg/cm3 relative density Tensile strength MPa Fracture toughness MPa m  
Room temperature 800 ℃            
WCu10 8~12% 77~82% 16.5~17.5 ≥97 ≥ 300 ≥ 150 15~18
WCu7 6~9% 82~86% 17~18 ≥97 ≥ 300 ≥ 150 13~15

 

Brand Components Performance
Density CTE (ppm/k) Thermal conductivity (W/m.k)
Ingredients Content Mass density (g/cm³) Relative Density (%T.D.)
W90Cu In Cu 90±1 balance 17.0 ≥99 5.6-6.5 190-200
W85Cu In Cu 85±1 balance 16.3 ≥99 6.3-7.0 200-210
W80Cu In Cu 80±1 balance 15.4 ≥99 7.6-9.1 220-230
W50Cu In Cu 50±1 balance 12.3 ≥99 12.3-12.8 230-240

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