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  1. Products Products
  2. Molybdenum Alloys Molybdenum Alloys
  3. Molybdenum Copper Molybdenum Copper
  4. Applications Applications

Molybdenum Copper

Coefficient of thermal expansion (CTE) of Copper molybdenum can be tailored by adjusting the composition, which is the same way with tungsten copper composites. Copper molybdenum is much lighter than tungsten cooper, which make it more suitable for aerospace usage.

Properties for molybdenum copper composites

Composition Mo wt% Cu wt% Density g/cm3 Thermal conductivity
W/(M.K)
CTE (10-6/K)
Mo85Cu15 85 ± 2 Balance 10 160 - 180 6.8
Mo80Cu20 80 ± 2 Balance 9.9 170 - 190 7.7
Mo70Cu30 70 ± 2 Balance 9.8 180 - 200 9.1
Mo60Cu40 60 ± 2 Balance 9.66 210 - 250 10.3
Mo50Cu50 50 ± 2 Balance 9.54 230 - 270 11.5

The most important usage of copper molybdenum is heat sinks for electronic devices. We can also provide Mo/Cu/Mo, Mo/CuMo/Mo parts. Visit our Heat sinks page for more information. 

Besides (Copper molybdneum) MoCu and (Tungsten copper) WCu heat sinks, we can also provide pure molybdenum, Cu-Mo-Cu(Copper-Molybdenum-Copper) Heat Sinks, Molybdenum-Copper-Molybdenum products, Cu-MoCu-Cu (Copper-Copper Molybdenum-Copper) parts.

Cu-Mo-Cu (Copper-Molybdneum-Copper) Heat Sinks Specification:

Cu: Mo: Cu (Thick ratio) Density (g/cc) Coefficient of Thermal Expansion (10-6/K) Thermal Conductivity (W/m·K), x-y direction Thermal Conductivity (W/m·K), x-z direction
1:1:1 9.4 9.4 300~310 240~250
1:2:1 9.6 7.7 260~270 210~220
1:3:1 9.7 6.9 230~240 190~200
1:4:1 9.8 6.2 210~220 170~180
13:74:13 9.9 5.8 190~200 160~170

Cu-Mo70Cu-Cu (Copper-Copper Molybdenum-Copper, CPC material) Heat Sinks Specification:

Cu-Mo70Cu-Cu
(Thick ratio)
Density (g/cc) Coefficient of Thermal Expansion (10-6/K) Thermal Conductivity (W/m·K)
Plate direction Thick direction Plate direction Thick direction
1:4:1 9.46 7.2 9.0 250-300 210-250

Picture for molybdneum copper products

  • Molybdenum Copper Block
  • Molybdenum Copper Foil



EdgeTech Industries LLC16518 SW 36th St, Miramar, FL 33027sales@edge-techind.com