Tungsten

Tungsten Copper Alloy, WCu

Reference: HTWW1133

Condition: New product

Tungsten-copper alloy is a pseudo-alloy with a two-phase structure based on tungsten and copper as a sub-composite. Now generally using powder alloy technology for production.

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Data sheet

Materials	Tungsten Copper Alloy
Purity	99.9% - 99.99%

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Tungsten copper (WCu) is a composite of tungsten and copper, so both the thermal conductivity advantage of copper and the very low thermal expansion characteristic of tungsten can be utilized. By adjusting the content of tungsten, it is possible to have an appropriate thermal expansion to match with those of silicone (Si), aluminum oxide (A1203), beryllium oxide (BeO), etc. The copper content of commonly used alloys is 10% to 50%. Tungsten copper material has the properties of high density, sweat cooling, high-temperature strength, and erosion resistance.

Tungsten Copper Alloy Specifications

Surface: No coating, electroplated Ni, Ni-Au, or electroless Ni
Tungsten Copper Plate: 300mm x 300mm x 0.5-50mm, customized
Tungsten Copper Rod: 2-200mm dia. x L, customized

Tungsten Copper Alloy Composition and Properties

Composites	Nominal Composition (% Weight)	Density (g/cm3, ≥)	Electrical Resistivity (20°C, µΩ·cm, ≤)	Electrical conductivity (IACS%, ≥)	Hardness(≥) Brinell Hardness		Bending Strength
Composites	Nominal Composition (% Weight)	Density (g/cm3, ≥)	Electrical Resistivity (20°C, µΩ·cm, ≤)	Electrical conductivity (IACS%, ≥)	Mpa	Kgf/mm2	Mpa	Kgf/mm2
CuW50	50% Copper 50% Tungsten	11.85	3.2	54	1128	115	---	---
CuW55	45% Copper 55% Tungsten	12.3	3.5	49	1226	125	---	---
CuW60	40% Copper 60% Tungsten	12.75	3.7	47	1373	140	---	---
CuW65	35% Copper 65% Tungsten	13.3	3.9	44	1520	155	---	---
CuW70	30% Copper 70% Tungsten	13.8	4.1	42	1716	175	667	68
CuW75	25% Copper 75% Tungsten	14.5	4.5	38	1912	195	706	72
CuW80	20% Copper 80% Tungsten	15.15	5.0	34	2158	220	736	75
CuW85	15% Copper 85% Tungsten	15.9	5.7	30	2354	240	765	78
CuW90	10% Copper 90% Tungsten	16.75	6.5	27	2550	260	804	82

We also provide Tungsten Carbide Copper and Tungsten Carbide Silver.

Tungsten Copper Alloy Applications

Tungsten copper heat sinks are extensively used as thermal mounting plates, chip carriers, flanges, and frames for RF and microwave packages, laser diode packages, and complex carriers for optoelectronics amplifiers, receivers, transmitters, tunable lasers, etc.

High-performance materials for aerospace
Vacuum contact material
Electrodes for EDM
Electronic packaging materials and heat sink materials
Heat Spreader Materials

Tungsten Copper Alloy Packing

Our Tungsten Copper Composites are clearly tagged and labeled externally to ensure efficient identification and quality control. Great care is taken to avoid any damage which might be caused during storage or transportation.

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