www.fotamcarbide.com provide 99.95% Pure Tungsten Products Tungsten Crucibles W Crucible for Sapphire Growing Because of the high melting point(3410â??) of tungsten, tungsten crucible is widely used in the industrial furnaces such as sapphire single crystal growth furnace, quartz glass melting furnace, rare earth smelting furnace and other industrial furnaces of which the working temperature is over 2000â??. Especially for sapphire single crystal growth furnace, tungsten crucible with features of high purity, high density, no crack, precise size, smoothy internal and external wall is the key note to seed success rate, crystal quality control, off crystal stick pan and service life in sapphire crystal growth process. During sapphire production, Al2O3 - the compound that is to become the future single crystal - is melted in tungsten crucibles. It is in the Kyropoulos process that our crucibles show their strengths to best effect. They arerepeatedly heated to more than 2 000 �°C (3632 �°F) and then cooled down again. This process, which would cause fissures and distortions in other materials, is not a problem for our products.
www.fotmacarbide.com provide 99.95% Pure Customized Tungsten Products Tungsten Stranded Wire Heating Elements Specification of Tungsten Stranded Wire: 1. Purity: 99.95% 2. Density: 19.3g/cm3 3. Type: W3101, W3102, W34, W1, W2 4. Content: W3 W34 W2: Wâ?¥ 99.95% 5. Character and usage W3101: Twist wire; It has good character in high temperature and endurance. Second crystal temperatureâ?¥ 1950�º C, mainly used as filament wire in halogen filament, high temperature color filament, twist filament, white filament and fluorescence filament. W3102: It has good character in roll and high temperature. Second crystal temperatureâ?¥ 1850�º C, mainly used in white filament wire, vacuum tube heating wire. W34: Used in twist wire. W1 W2: Used as frame of vacuum tube, heating elements. 6. Super thin white tungsten wire. Spaces: 3-14um
Polished Tungsten Copper Alloy Copper Tungsten Bricks 5mm to 100mm Thickness Tungsten opper alloy brick is also called tungsten copper brick (tungsten-copper, Cu-W, or W-Cu), which is a pseudo alloy of copper and tungsten. As copper and tungsten are not mutually soluble, the tungsten copper alloy brick material is composed of distinct particles of one metal dispersed in a matrix of the other one. The microstructure of tungsten copper brick is therefore rather a metal matrix composite than a true alloy. Tungsten copper alloys are used where the combination of high heat resistance, high electrical and/or thermal conductivity, and low thermal expansion are needed. Some of the applications are in electric resistance welding, as electrical contacts, and as heat sinks. As contact material the alloy is resistant to erosion by electric arc. WCu alloys are also used in electrodes for electrical discharge machining and electrochemical machining. Tungsten copper brick combines the properties of both metals, resulting in a material that is heat-resistant, ablation-resistant, highly thermally and electrically conductive, and easy to machine. Advantages of Copper Tungsten Bricks: 1. Better heat resistant; 2. Low thermal expansion 3. High intensity 4. High density; 5. Excellent thermal and electrical conductivity; 6. Easy to be machined. 7. Better ablate-resistant; 8. High wear resistance
MILT Tungsten Heavy Alloy Cubes 3.0mm to 10mm Heavy Metal For Weight Balancing As tungsten heavy alloy cubes are high density with small capacity, high temperature resistance, high impact resistance and crack resistance, wonderful shock resistance, good corrosion resistance, High absorption capacity against X-rays and gamma rays, Good modulus of elasticity, High hardness, etc. The first tungsten heavy alloy developed was a W-Ni-Cu alloy. Alloys of this ternary system are still occasionally used today, primarily for applications in which ferromagnetic character and electrical properties must be minimized. W-Ni-Cu alloys otherwise offer inferior corrosion resistance and lower mechanical properties than the present industry standard W-Ni-Fe alloys. High density tungsten alloy cube has excellent radiation resistance, electric and thermal conductibities and corrosion resistance characters with high density (16---18.5g/cm3) and good mechanical strength. It has small coefficient of expansion and large elastic modulus. Tungsten heavy alloy cube is extensively used in military equipment, mechanical manufacturing, aircraft components, medical shields and sports equipment. Tungsten Heavy Alloy Cubes Advantages: Tungsten alloy cubes is in small volume with high density, which means it could be used in some fields need the little but heavy parts, such as the counterweights of golf club, Pinewood Derby car, aircraft, helicopter, vehicle, boat and yacht; Especially in precision instrument fields, such as mobile phone vibrator, clock cube, self-winding watches, anti-vibration toll holders, flywheel weights, etc.
WNiFe Tungsten Heavy Alloy Tungsten Nickle Iron Alloy For Aircraft / Vehicles The majority of current uses for tungsten heavy alloys are best satisfied with the W-Ni-Fe system. Tungsten alloys such as 93W-4.9Ni-2.lFe and 95W-4Ni-lFe represent common compositions. The addition of cobalt to a W-Ni-Fe tungsten alloy is a common approach for slight enhancement of both strength and ductility. The presence of cobalt within the tungsten alloy provides solid-solution strengthening of the binder and slightly enhanced tungsten-matrix interfacial strength. Cobalt additions of 5 to 15% of the nominal binder weight fraction arc most common. Tungsten Nickle Iron Alloy has density range from 17.0g/cm3 to 18.8g/cm3, which is the twice of steel, more than 1.5 times of lead. WNiFe alloy has low thermal expansion coefficient, high strength and high modulus of elasticity. Tungsten Nickle Iron Alloy Main Application: Tungsten alloy damping weights for computer disk drive heads Balancing weights for ailerons in commercial aircraft, helicopter rotors, and for guided missiles made by tungsten alloy. Kinetic energy penetrators for defeating heavy armor by tungsten alloy Tungsten alloy Fragmentation warheads Tungsten alloy Advantages: -High density -Excellent mechanical properties such as high vibration-damping capacity and high Young's modulus. -Excellent radiation-shielding property -High thermal conductivity with low thermal expansion coefficient -Higher high-temperature strength and thermal shock resistance -High oxidation resistance and corrosion resistance
99.95% Pure Tungsten Products Tungsten Crucibles W Crucible for Sapphire Growing Because of the high melting point(3410) of tungsten, tungsten crucible is widely used in the industrial furnaces such as sapphire single crystal growth furnace, quartz glass melting furnace, rare earth smelting furnace and other industrial furnaces of which the working temperature is over 2000â??. Especially for sapphire single crystal growth furnace, tungsten crucible with features of high purity, high density, no crack, precise size, smoothy internal and external wall is the key note to seed success rate, crystal quality control, off crystal stick pan and service life in sapphire crystal growth process. During sapphire production, Al2O3 - the compound that is to become the future single crystal - is melted in tungsten crucibles. It is in the Kyropoulos process that our crucibles show their strengths to best effect. They arerepeatedly heated to more than 2 000 �°C (3632 �°F) and then cooled down again. This process, which would cause fissures and distortions in other materials, is not a problem for our products.
99.95% High Purity Tungsten Wires Straightened 0.02mm-2.0mm Tungsten Products Tungsten wires are used in filaments in incandescent light bulbs; it is also used in electric contacts and arc-welding electrodes. Tungsten is used in alloys, such as steel, to which it imparts great strength. Tungsten is a lustrous and silvery white metal. The bulk metal resists attack by oxygen, acids and alkalis. Tungsten has the highest melting point of any metal. Packing of tungsten wires Tungsten wire in spool: plastic case or plastic vacuum packing. Tungsten wire in coil: woven bag or plastic vacuum packing. Note: The length or weight of single tungsten wire can be supplied by your special request.
www.fotmacarbide.com provide Tungsten Copper Alloy Round Bar W Cu Alloy Bars W80 W75 W70 For Airplane Industry Tungsten copper (Cu-W) Alloy is the composite of tungsten and copper which own he excellent performance of tungsten and copper. It is used widely in such industries as engine, electric power, electron, metallurgy, spaceflight and aviation. Tungsten copper alloy combines the properties of both tungsten and copper metals, resulting in a material that is heat-resistant, ablation-resistant, highly thermally and electrically conductive, and easy to be machined. Main Sizes of Tungsten Copper Alloy Round Bars: Diameter: 1 - 100 mm Length: 50 - 500mm Diameter Tolerances: +/-0.05mm - 0.1mm Length Tolerances: +/- 0.1mm, +/-0.5mm Advantages of WCu Alloy Round Bars: High arc resistance High thermostability High strength Lighter weight than pure tungsten Good electrical conductivity
www.fotmacarbide.com provide CuW75 Customized Tungsten Copper Alloy Heat Sinks WCu Spreader For LED Industry The CuW75 tungsten copper alloy is used extensively in thermal mounting plates, heat sinks, chip carriers, flanges, and frames for high-power electronic devices. As a tungsten copper material, it's a composite, so both the thermal advantages of copper and the very low expansion characteristics of tungsten can be utilized. The combination of tungsten & copper materials results in thermal expansion characteristics similar to those of silicone carbide, aluminum oxide, and beryllium oxide, used as chips and substrates. Because of tungsten copperâ??s thermal conductivity and expansion characteristics, Tungsten copper alloy works well in densely packed circuits. The thermal conductivity and thermal expansion characteristics of the semiconductor and the base plate must be optimally harmonized to avoid undesired distortions to the semiconductor. The better harmonized the properties are, the better the semiconductor module is to withstand soldering processes involved during manufacture and the temperature cycles that occur during operation. The sketch shows the principle structure of a hermetically sealed electronic package. Advantages of Copper Tungsten Heat Sinks / Spreaders: Strong hardness(86~93.5HRA) High arc resistance combined with good electrical conductivity High thermal conductivity Low thermal expansion. Applicatioins of Tungsten Copper Alloy: Our tungsten copper composites to be used extensively in thermal mounting plates, chip carriers, flanges, and frames for high-powered electronic devices. With the thermal advantages of copper with the very low expansion characteristics of tungsten, tungsten copper has properties similar to those of silicone carbide, aluminum oxide, and beryllium oxide. The thermal conductivity and low expansion also make tungsten copper alloy an excellent choice even for extremely dense circuits. The CuW75 tungsten copper alloy is used extensively in thermal mounting plates, chip carriers,
www.fotmacarbide.com provide CuW75 Customized Tungsten Copper Alloy Heat Sinks WCu Spreader For LED Industry The CuW75 tungsten copper alloy is used extensively in thermal mounting plates, heat sinks, chip carriers, flanges, and frames for high-power electronic devices. As a tungsten copper material, it's a composite, so both the thermal advantages of copper and the very low expansion characteristics of tungsten can be utilized. The combination of tungsten & copper materials results in thermal expansion characteristics similar to those of silicone carbide, aluminum oxide, and beryllium oxide, used as chips and substrates. Because of tungsten copperâ??s thermal conductivity and expansion characteristics, Tungsten copper alloy works well in densely packed circuits. The thermal conductivity and thermal expansion characteristics of the semiconductor and the base plate must be optimally harmonized to avoid undesired distortions to the semiconductor. The better harmonized the properties are, the better the semiconductor module is to withstand soldering processes involved during manufacture and the temperature cycles that occur during operation. The sketch shows the principle structure of a hermetically sealed electronic package. Advantages of Copper Tungsten Heat Sinks / Spreaders: Strong hardness(86~93.5HRA) High arc resistance combined with good electrical conductivity High thermal conductivity Low thermal expansion. Applicatioins of Tungsten Copper Alloy: Our tungsten copper composites to be used extensively in thermal mounting plates, chip carriers, flanges, and frames for high-powered electronic devices. With the thermal advantages of copper with the very low expansion characteristics of tungsten, tungsten copper has properties similar to those of silicone carbide, aluminum oxide, and beryllium oxide. The thermal conductivity and low expansion also make tungsten copper alloy an excellent choice even for extremely dense circuits. The CuW75 tungsten copper alloy is used extensively in thermal mounting plates, chip carriers,
www.fotmacarbide.com provide Tungsten Copper Alloy Electrical Contacts Customized Arcing Contacts / Arc Runner Tungsten copper alloy can be used in oil-filled devices, air and gas circuit breakers, contactors, and high voltage switch gear. Some common applications are: arcing contacts and plates, arc runners , current carrying members, blade facings etc. The CuW75 tungsten copper alloy, with 75% of tungsten, is widely used in chip carriers, substrates, flanges and frames for power semiconductor devices. The high thermal conductivity of copper together with the low thermal expansion of tungsten allows thermal expansion matching to silicon, gallium arsenide, and some ceramics. Applicatioins of WCu Alloy HV Contacts: The high Electrical & thermal conductivity of copper are combined with the arc-resistant & non-welding properties of tungsten or their carbides to form an extensive series of compositions each designed to give the best performance for your particular application. These materials are used for such heavy duty contact applications as: Circuit breakers, air & oil immersed Arcing tips or arc runners Make & break contacts Heavy duty conductors, relays & switches. Advantages of Copper Tungsten Contacts: The high electrical and thermal conductivity of tungsten copper alloy allows a cool, effective transfer of power, while the excellent arc-resistance properties of tungsten copper minimize arc erosion and transfer problems. These characteristics can be varied by composition more silver or copper yields higher electrical and thermal conductivity, while a higher refractory metal content results in superior arc erosion properties. We offer a variety of composites to meet your demands. Regardless of the environment (oil-filled devices, air and gas circuit breakers, contactors, high voltage switch gear) or the application (arcing contacts and plates, arc runners, current carrying members and blade facings), you won't be disappointed in electrical contacts made from our copper tungsten composites.
Polished Tungsten Copper Alloy Copper Tungsten Bricks 5mm to 100mm Thickness Tungsten opper alloy brick is also called tungsten copper brick (tungsten-copper, Cu-W, or W-Cu), which is a pseudo alloy of copper and tungsten. As copper and tungsten are not mutually soluble, the tungsten copper alloy brick material is composed of distinct particles of one metal dispersed in a matrix of the other one. The microstructure of tungsten copper brick is therefore rather a metal matrix composite than a true alloy. Tungsten copper alloys are used where the combination of high heat resistance, high electrical and/or thermal conductivity, and low thermal expansion are needed. Some of the applications are in electric resistance welding, as electrical contacts, and as heat sinks. As contact material the alloy is resistant to erosion by electric arc. WCu alloys are also used in electrodes for electrical discharge machining and electrochemical machining. Tungsten copper brick combines the properties of both metals, resulting in a material that is heat-resistant, ablation-resistant, highly thermally and electrically conductive, and easy to machine. Advantages of Copper Tungsten Bricks: 1. Better heat resistant; 2. Low thermal expansion 3. High intensity 4. High density; 5. Excellent thermal and electrical conductivity; 6. Easy to be machined. 7. Better ablate-resistant; 8. High wear resistance
YG6 YG8 YG10 Tungsten Carbide Woodworking Tools Wood Cutters Tree Removal Tools Brief Introduction: By brazing carbide teeth into standard wood cutters, we've extended tool life and reduced cutting times. Productive Carbides works with each order. Suitable for ripping cut and cross cutting softwood and hardwood with occasional nails. Tell us what you are cutting, we can adjust grades of carbide. Advantages: Tungsten Carbide Woodworking Tools: 1. High quality virgin material 2. Efficient machining, good wear resistance, long working life 3. Free technical support on line 4. Produced exactly as per your designs 5. Excellent thermal brazing job
www.fotmacarbide.com provide 99.95% High Purity Forged Molybdenum Products Pure Molybdenum Crucibles for Sapphire Growth Molybdenum crucibles are mainly used in metallurgy industry and mchanism process industry. Molybdenum is a indispensability material in rare earth smelting industry. More and more molybdenum crucibles are used in crystalloid materials, and other burgeoning high technology industry. The characteristics of the molybdenum crucibles The density of the molybdenum crucibles is 10.2g/cm3. Their purity is no less than 99.95%. The outer diameter is 20-214mm and the height is 10-400mm. Under the temperature between 1100ºC and 1700ºC, the molybdenum crucibles can still work. Mostly their surface are polished.
www.fotmacarbide.com provide Customized Tungsten Copper Alloy Tubes / Pipes Surface Machined For Spark Erosion Tungsten copper tubes are widely used in machinery, electronics, and aviation, aerospace, military and other fields. Copper Tungsten Alloy uses the excellent metal characteristics of the high pure tungsten powder and the plasticity and high conductivity of the high pure copper powder to produce composite materials with static pressure molding, high temperature sintering and the the solution process of the copper infiltration technology. These materials have some advantages: the arc ablation resistance, good thermal conductivity, and small thermal expansion, not soften in high temperature, softening, high strength, high density, high hardness etc. Advantages of Copper Tungsten Tubes: High arc resistance combined with good electrical conductivity Low thermal expansion. Strong hardness(86~93.5HRA) High thermal conductivity Applicatioins of Tungsten Copper Alloy: Copper tungsten is very popular used in the EDM, since it has both tungsten and copper's character so it has very good wear resistance. Our copper tungsten alloy is made by vacuum infiltration technology. which has very good physical and mechanical propertie. Electrodes for Resistance Welding Arcing contacts and vaccum contacts in high and medium voltage breakers or vaccum interruptors Electrodes in electric spark erosion cutting machines Heat sinks as passive cooling elements of electronic devices For the spark erosion of dies or cemented carbide making for high speed steel and switches and contacts in high and low voltage electrical devices. Special shape products are produced as per customer's drawing.
provide tungsten heavy alloy ring Densir1/2 /3 /4 WNiFe circle. Feature:Large specific gravity, high strength, good plasticity,Strong ability to absorb radiation,Large thermal conductivity,Small thermal expansion coefficient,Good electrical conductivity Application:Professional tungsten alloy darts benchmark Counterweight product Medical tungsten alloy ray shielding material EDM electrodes and resistance welded electrodes; high specific gravity electrical contacts, contacts in air circuit breakers. Military products High specific gravity alloy heat sink material
provide High Density Tungsten Heavy Alloy Plates / Bars Thickness 0.1mm to 120mm WNiCu Density of tungsten heavy alloy plates usually ranges from 17.0g/cm3 to 18.8g/cm3, which is the twice of steel, more than 1.5 times of lead. It has low thermal expansion coefficient, high strength and high modulus of elasticity. Tungsten heavy alloy has low thermal coefficient but it has high absorption ability and high-energy rays. The tungsten heavy alloy we make conforms to ASTM B777-99 standard. Tungsten heavy alloy plates are widely supplied for balancing molds and high temperature molds. Also it can be made into protective shields and high energy rays. Tungsten heavy alloy plates play an important role in aircraft controlling surfaces, helicopter rotor systems, parts of engine and shipping ballast.
Tungsten Boats Evaporation Boats for Vacuum Metalizing 99.95 % Tungsten Products Tungsten Boats Evaporation Boats for Vacuum Metalizing As a high performance materials, Pure Tungsten has high melting temperature, high density, low vapor pressure, low thermal expansion combined with good thermal conductivity, sufficient electrical resistance, high modulus of elasticity. Tungsten boat is widely used in metallizing, electron-beam spraying as well as sintering and annealing in reducing atmosphere in electronics and light industries. Manufactured by the special production line in our corporation, tungsten boats can provide reliable guarantee of product quality for the users by adopting excellent tungsten materials with high purity, advanced techniques as well as special treatment to the product surfaces. Tungsten boats are mainly used for evaporation or metalization of Al, Ni, Cu, Ag and many other metals in vaccuum furnaces.
Hollow OD20mm - 100mm Pure Tungsten Rod Surface Polished For Heating Tungsten hollow rods can be made as per customers designs. Its outer diameter is within 100mm, inner diameter no less than 5mm, length is below 500mm. Tungsten hollow rods are widely used in vacuum coating industry, target materials raw materials, aerospace industry, Marine automobile industry, electrical industry, instruments industry, etc. We produce tungsten hollow rods by tungsten powder with 99.95% purity. High quality products have been made after decades of procedures such as pressing, sintering, rolling, cutting and surface grinding. Super sputtering target (single heavy reach to 120kg) is available at present. Tungsten Hollow Rods Description: Purity: Wâ?¥99.95% Density: more than 19.1g/cm3 Tolerance: +/-0.05mm Supply state: Surface polishing, CNC machine processing Quality standard: ASTM B760-86, GB 3875-83
K20 K30 Customized cutting tungsten carbide Tablets For Alloy Steel / Iron Tungsten carbide tablets are widely used in petroleum drilling and snow removal,snow plow machines and other equipments. Also be used fordrilling,mining and road sweeping machine,snow removal and road maintenance tools. Also,it has a great help in quarrying,mining,tunneling tools,as well as civil construction. Description of Carbide Tablets: As special carbide products manufacturer, we are good at producing different kinds of tools as needed. Tungsten carbide material can be treated with cobalt to produce certain characteristics. The more cobalt in the metal, the shock resistant is better. While less cobalt will result in a more wear-resistant metal. Our application engineers are experienced at helping clients find the right blades for their needs. Advantages of Our Carbide Tablets: 1. Dust-free workshop 2. Virgin raw material with fine grain size 3. Advanced technology and production equipment 4. All of the mould with precision design 5. Strict quality testing and inspection
