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Factory Cheap China Machining - CMC CuMoCu Heat Sink – Fotma Detail:
CMC CuMoCu Material Application
Low Expansion Layers and Thermal Paths for Heat Sinks, Lead Frames, Multi-layer Printed Circuit Boards (PCBs), etc.
Heat sink material on aircraft, heat sink material on radar.

CMC Heat Sink Advantages
1. CMC composite adopts a new process, multilayer copper-molybdenum-copper, the bonding between copper and molybdenum is tight, there is no gap, and there will be no interface oxidation during subsequent hot rolling and heating, so that the bonding strength between molybdenum and copper is excellent, So that the finished material has the lowest thermal expansion coefficient and the best thermal conductivity;
2. The molybdenum-copper ratio of CMC is very good, and the deviation of each layer is controlled within 10%; SCMC material is a multi-layer composite material. The structural composition of the material from top to bottom is: copper sheet – molybdenum sheet – copper sheet – molybdenum sheet… copper sheet, it can be composed of 5 layers, 7 layers or even more layers. Compared with CMC, SCMC will have the lowest thermal expansion coefficient and the highest thermal conductivity.

Grade of CMC Cu-Mo-Cu Materials
| Grade |
Density g/cm3 |
Coefficient of thermal Expansion ×10-6 (20℃) |
Thermal conductivity W/(M·K) |
| CMC111 |
9.32 |
8.8 |
305(XY)/250(Z) |
| CMC121 |
9.54 |
7.8 |
260(XY)/210(Z) |
| CMC131 |
9.66 |
6.8 |
244(XY)/190(Z) |
| CMC141 |
9.75 |
6 |
220(XY)/180(Z) |
| CMC13/74/13 |
9.88 |
5.6 |
200(XY)/170(Z) |
| Material |
Wt% Molybdenum Content |
g/cm3 Density |
Thermal conductivity at 25℃ |
Coefficient of thermal Expansion at 25℃ |
| S-CMC |
5 |
9.0 |
362 |
14.8 |
| 10 |
9.0 |
335 |
11.8 |
| 13.3 |
9.1 |
320 |
10.9 |
| 20 |
9.2 |
291 |
7.4 |
Product detail pictures:
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Our corporation insists all along the quality policy of "product top quality is base of organization survival; purchaser pleasure will be the staring point and ending of an company; persistent improvement is eternal pursuit of staff" plus the consistent purpose of "reputation very first, purchaser first" for Factory Cheap China Machining - CMC CuMoCu Heat Sink – Fotma , The product will supply to all over the world, such as: Colombia, Myanmar, Cologne, "Good quality, Good service " is always our tenet and credo. We take every effort to control the quality, package, labels etc and our QC will check every detail during producing and before shipment. We are willing to establish long business relationship with those who seek the high quality products and good service. We have set up a wide sales network across European countries, North of America, South of America, Middle East, Africa, East Asia countries.Please contact us now, you will find our professional experience and high quality grades will contribute to your business.