Molybdenum-Tungsten Alloy Metal Wire
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Overview
Molybdenum-Tungsten Alloy Metal Wire is a superalloy material with molybdenum and tungsten as the main composition, with high melting point, high strength, excellent high-temperature resistance and electrical conductivity, commonly used grades such as MoW20, MoW30, etc., diameter range 0.03-1.8mm, widely used in electronic devices, aerospace, nuclear industry and other fields of high-temperature structural parts, electrode materials, cutting wires, etc., with good processability and reliability. FANMETAL has more than 20 years of professional experience in the production and export of non-ferrous metal products, and can provide customers with molybdenum and tungsten products with a high level of customisation ability and service attitude.
Tungsten Molybdenum Characteristics
Excellent physical properties
- It has a high melting point and can work normally under extremely high temperature conditions, far exceeding the scope of use of ordinary metal materials.
- Good thermal and electrical conductivity, and the thermal conductivity can reach 140W/(m·K) at room temperature.
- The low coefficient of thermal expansion is similar to that of semiconductor materials such as silicon, which helps to reduce thermal stress and improve device reliability.
Outstanding mechanical properties
- High hardness, good wear resistance, high strength, good toughness, avoid the brittleness problem of pure tungsten materials.
- It has excellent creep resistance at high temperatures and can maintain good dimensional stability for a long time.
Good chemical stability
- The alloy has excellent corrosion resistance to molten metals such as zinc, copper, aluminium, and certain corrosive media, especially in acidic environments.
- It has good oxidation resistance in the air, is not easy to rust, and is suitable for use in harsh environments.
Molybdenum-Tungsten Alloy Metal Wire Dimension
| Type | Grade | Tensile Strength (MPa) | Vickers hardness (HV) | Conductivity (% IACS) | Features | Application |
| Low tungsten alloys | MoW5,MoW10 | 550-1000 | 120-270 | 26-32 | Good plasticity, easy processing, excellent electrical conductivity, and thermal conductivity | Tube cathode holder, incandescent lamp lead, cryogenic heating element |
| Medium tungsten alloy | MoW20,MoW25 | 650-1200 | 160-310 | 21-27 | Good comprehensive performance and moderately high temperature strength | Industrial furnace heating wires, semiconductor packaging pins, and vacuum equipment components |
| High tungsten alloy | MoW30,MoW50 | 750-1600 | 200-410 | 12-23 | High temperature strength, creep resistance, and wear resistance | High-temperature mould cores, aero engine components, and high-temperature components for nuclear reactors |
| Material | WMo |
| Tungsten content | 4.5%–51.0% |
| Diameter | 0.05mm |
| Length | 2000mm |
| Weight | 0.053kg |
| Surface | Chemical treatment, electropolishing, grinding, straightening, and drawing |
| MOQ | 1PCS |
| Standard | ASTM B387 |
| Delivery Time | 25-30days |
| Certification | ISO 9001 |
Molybdenum Tungsten Wire Application




1. Electronic lighting field
Low tungsten grade alloy wires are suitable for use as tube cathode holders/leads, incandescent/halogen lamp filaments and leads, small low-voltage heating elements, etc.
2. Industrial heating field
Molybdenum tungsten wire is often used in industrial electric furnaces or muffle furnace heating wire, thermocouple compensation wire, and heating elements of special heating equipment.
3. Vacuum equipment field
Conductive or heating elements are used in vacuum furnace sealing components, vacuum coater support wires, and vacuum testing equipment.
4. Semiconductor field
Tungsten Molybdenum Alloy wire has high dimensional accuracy and low coefficient of thermal expansion, and can be widely used as semiconductor chip packaging pins, precision components of wafer processing equipment, and conductive wire of vacuum coating equipment.
5. Aerospace field
High tungsten grade alloy wires are suitable for use as precision components in high-temperature engine areas, high-temperature resistant leads for aerospace equipment, heating elements for aviation special furnaces, etc., which can withstand high temperatures above 1000°C and have excellent creep resistance and wear resistance.
6. Nuclear industry or nuclear medicine
Tungsten has strong radiation resistance and strong chemical inertness, so alloy wires can also be used in nuclear reactor high-temperature component leads, precision high-temperature components of nuclear medicine equipment, and support wires for nuclear radiation detection equipment.
MoW Wire vs Molybdenum Wire vs Tungsten Wire vs Nickel Chromium Wire
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| key Words | Molybdenum tungsten wires | Pure Molybdenum wire | Pure tungsten wire | Nickel Chromium Wire |
| Core performance | Good oxidation resistance, creep resistance, wear resistance, and dimensional stability | Tensile strength 500-800MPa, excellent electrical and thermal conductivity, easy creep and deformation | High hardness, excellent electrical and thermal conductivity, but strong thermal brittleness | Tensile strength 400-600MPa, poor oxidation resistance |
| Processability | It can be adapted to multiple processes, such as welding and wire drawing, and is easy to process into precision wire | Excellent plasticity, easy processing, low moulding difficulty | It is hard, brittle, and easy to break, and cold processing is difficult | Excellent plasticity and easy processing |
| Cost-effectiveness | Strong adaptability to all scenarios and low comprehensive use cost | The raw material cost is low, the processing cost is low, and the overall cost is the lowest | The cost of raw materials is high, and the processing cost is extremely high. | Low cost but frequent replacement |
| advantages | It takes into account the processability of pure molybdenum and the high-temperature performance of pure tungsten, and is suitable for multiple working conditions | Easy processing, low cost, excellent conductivity | High temperature strength, creep resistance is Best, and ultra-high temperature resistance | Antioxidant and low cost |
| Typical Use | High-end manufacturing in all fields such as lighting, semiconductors, vacuum equipment, aerospace, etc | Basic low-temperature scenarios such as low-temperature heating, normal temperature conductivity, and ordinary electronic leads | Niche extreme high temperature scenarios, such as ultra-high temperature metallurgy and high-end aerospace ultra-high temperature components | Civil low-temperature heating and ordinary heating elements |
Molybdenum-Tungsten Alloy Metal Wire Pictures



01
High Quality
The whole process quality control is carried out from raw material procurement to finished product inspection. And it has ISO 9001 quality certification and can also provide exclusive certifications in other regions according to customer needs.
02
Advanced Equipment
We have professional equipment like CNC machine tools, rolling machines, sintering furnaces, cutting machines, welding tools and surface treatment facilities. Our technicians can design drawings, customise production as per customer needs, and even travel overseas for on-site equipment installation.
03
Delivery guarantee
We can provide regular grades in stock, and large quantities and customised orders will be completed on time and within the agreed delivery period. All products are suitable for anti-oxidation and moisture-proof professional packaging for sea/air freight.
04
Custom Service
Our company can provide small specimens for free, and customise production according to customer drawings after the customer confirms the product quality, such as size specifications, surface treatment and other special requirements.
Related Case

Tungsten Molybdenum Wire, Molybdenum-Tungsten Alloy Wire To Germany
Recently, FANMETAL completed an order with a German manufacturer of precision electronic components for tungsten and molybdenum wire. Before using our wire, the customer faced the problems of insufficient dimensional accuracy, insufficient tensile strength, and a high wire breakage rate under high-frequency cutting. We have set up a special service team to give customised solutions, and customers have spoken highly of our product quality and delivery speed after accepting the products. The smooth delivery of this order not only demonstrates our company's technical strength in high-end tungsten-molybdenum alloy materials but also builds valuable experience in expanding the European high-end non-ferrous metal market.
Product qualification

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