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Tungsten Copper Alloy, WCu

Reference: HTWW1133

Condition: New product

Tungsten-copper alloy is a composite material of tungsten and copper, forming a two-phase structure. It is commonly produced using powder alloy technology. Heeger Materials offers premium tungsten-copper alloy products at highly competitive prices. These alloys are available in various forms such as heat sinks, plates, and rods, and can also be customized to meet specific requirements.

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Data sheet

Materials	Tungsten Copper Alloy
Purity	99.9% - 99.99%

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Tungsten copper (WCu) alloy is a composite material that combines the thermal conductivity benefits of copper with the low thermal expansion properties of tungsten. By adjusting the tungsten content, its thermal expansion can be tailored to match materials such as silicon (Si), aluminum oxide (Al2O3), and beryllium oxide (BeO). Typically, the copper content ranges from 10% to 50%. This material has high density, excellent heat dissipation, high-temperature strength, and resistance to erosion.

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

Tungsten Copper alloys are tagged and labeled externally to ensure efficient identification and quality control. Great care is taken to avoid any damage caused during storage or transportation.

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