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Tungsten Copper Alloy

Material Property:

With the 6~50% copper(by weight), the W-Cu alloy has integrated both advantages of tungsten and copper. Characterized by good high temperature resistance, arc ablation resistance, thermal and electrical conductivity , high strength, machining-ease, and outstanding sweat cooling ability and specific gravity ,it is widely applied in machinery, electric power, electronics, metallurgy, aerospace and other industries.

Application:

Tungsten Copper composite materials are widely used in:
? Switches or circuit breakers of arc contact and vacuum contact in medium-high voltage application
? Electrodes used for EDM
? High- temperature -resistance materials
? Heat spreader on electronic equipment
? Electrodes in electric resistance welding
? Electronic packaging materials and heat sink materials
?? Microwave, laser, radio frequency (rf), optical communication and other high power devices
?? Lead frame of the high performance
?? Thermal controlling panel and dissipation devices of military and civilian use
? Components for Aeronautics and astronautic

Product Specification:

Chemical Components & Physical Properties of Tungsten Copper Composite

Brand	Chemical elements (w%)			Density	hardness	Resistivity	Electrical conductivity	Bending strength
Brand	Cu	impurity ≤	W	g/cm³ ≥	HB Kgf/mm²≥	μΩ.cm ≤	% ≥	MPa ≥
WCu50	50±2.0	0.5	balance	11.85	115	3.2	54	--
WCu45	45±2.0	0.5	balance	12.30	125	3.5	49	--
WCu40	40±2.0	0.5	balance	12.75	140	3.7	47	--
WCu35	35±2.0	0.5	balance	13.30	155	3.9	44	--
WCu30	30±2.0	0.5	balance	13.80	175	4.1	42	790
WCu25	25±2.0	0.5	balance	14.50	195	4.5	38	885
WCu20	20±2.0	0.5	balance	15.15	220	5.0	34	980
WCu15	15±2.0	0.5	balance	15.90	240	5.7	30	1080
WCu10	10±2.0	0.5	balance	16.75	260	6.5	27	1160

Heat Properties of Tungsten Copper Composite

Compisition(wt%）	WCu10	WCu15	WCu20	WCu25	WCu30
Heat conductivity(W/m·K)	>160	>170	>180	>200	>220
Heat expansion coefficient(×10^-6/K)	6.2~6.5	6.9~7.2	7.4~7.7	8.0~8.4	8.8~9.4

Our Advantages:

- We invented W infiltration with Cu and Mo infiltration with Cu. We started from 1960s and set up the industry benchmark.
- We develop many assembly material of the Mo-Cu and W-Cu brands.
- Leading the advanced level, we have the assembling producing experience of more than 50 years and have the richest R&D experience.
- Company qualified with ISO9001、14001and OHSAS18001 and can deliver the high-level products.