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ATTL is the domestic invention unit of tungsten-copper material and the drafting unit of tungsten-copper industry standard. Our company has been developing and producing tungsten-copper since the 1960s, and has developed several brands of tungsten and copper material system. We have many experience in R&D and production, and our product quality and technology keep high level. ATTL has passed ISO9001, 14001 and OHSAS18001 system certification, can provide you with qualified products.
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.
Typical applications are as below:
• 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
• Thermal controlling panel and dissipation devices
• Lead frame of the high performance
• Components for aeronautics and astronautic
| Typical W-Cu Alloy Properties | |||||||
| Materials | wt% | Density | CTE | Thermal Conductivity | |||
| Cu | W | 10-6/K | g/cm3 | W/M·K | |||
| W94Cu6 | 6±1 | Balance | 17.6 | 6 | 140-160 | ||
| W90Cu10 | 10±1 | Balance | 17 | 6.5 | 180-190 | ||
| W85Cu15 | 15±1 | Balance | 16.4 | 7 | 190-200 | ||
| W80Cu20 | 20±1 | Balance | 15.6 | 8.3 | 200-210 | ||
| W75Cu25 | 30±1 | Balance | 14.8 | 9 | 220-230 | ||
| W50Cu50 | 50±1 | Balance | 12 | 12.5 | 310-340 | ||
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