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Tungsten Heavy Alloy-Tungsten Copper Sheet

Basic Info

Model No.:  all sizes

Product Description

Model NO.: all sizes

Certification: SGS, ISO9001

Customized: Customized

Application: Metal Processing Machinery Parts

Transport Package: in Plywood Box (Neutral-Packing)

Origin: Zhuzhou

Condition: New

Standard: ASTM, GB

Material: Alloy

Trademark: ZZKD

Specification: According to customer′s drawing and tru samples

HS Code: 81019900


Product Brief Introduction

W-Cu heat sink material is a composite of tungsten and copper, with both tungsten low expansion characteristics, but also has copper of high thermal conductivity properties, and the tungsten and copper in the thermal expansion coefficient and thermal conductivity can be adjusted with the W-Cu composition, also the composite can be machined to various shape, these features make the application of this composite with great convenience. The thermal expansion can be adjusted to match with the following material:

Ceramic materials: , (A-90,A-95,A-99), BeO (B-95, B-99), AIN, etc;

Semiconductor materials: Si, GaAs, SiGe, SiC, GaP;

Metal Material: Kovar alloy(4J29), 42 alloy;

The quality of our composite is the leader in China, contributed with our strict quality control measures. Our porosity is very low; our surface/volume ratio(measured with BET) is only 50% of similar products of 100 pieces of 5*5*2 mm W80-Cu20 composite). Our products have high hermeticity and can pass the He mass-spectrometer leak test (<<5*-9Pa·/S)

Our Tungsten Copper Composite Features:

No Fe, Co, Ni, Mn and other elements added as the sintering activator, to maintain a high thermal conductivity

Excellent hermeticity

Can provide semi-finished or finished (Ni/Au plated) products

Precision machining and excellent dimensional control, surface finish and flatness

With close technical support including product design, custom manufacturing, testing and post sale supports.

Product PropertiesPhysical Properties of Major Products

Material Wt%
Tungsten Content
Copper Content
Density at 20ºC
Thermal conductivity at 25ºC
Coefficient of thermal expansion at 20ºC
W90Cu10 901 Balance 17.0 180-190 6.5
W85Cu15 851 Balance 16.4 190-200 7.0
W80Cu20 801 Balance 15.6 200-210 8.3
W75Cu25 751 Balance 14.9 220-230 9.0
W50Cu50 501 Balance 12.2 310-340 12.5

Contact us if you need more details on Sheet. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Tungsten Copper Sheet、Metalizing Product. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Tungsten Heavy Alloy

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