REG Metals supplies and sources Molybdenum Tungsten Alloy (Mo-W Alloy) for high-temperature industrial equipment, molten-metal processing, glass manufacturing, thin-film deposition, sputtering targets, and advanced engineering applications. This refractory metal alloy combines molybdenum (Mo) and tungsten (W) to provide high-temperature strength, improved resistance to molten-zinc corrosion, and performance characteristics tailored to the alloy composition.
Molybdenum tungsten alloy is commonly available in compositions such as Mo-30W (70% molybdenum and 30% tungsten) and Mo-50W (50% molybdenum and 50% tungsten). Other molybdenum-to-tungsten ratios may be available depending on supplier capabilities and the required mechanical, thermal, and chemical properties
Molybdenum Tungsten Alloy
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High-Temperature Performance: Combines the refractory properties of molybdenum and tungsten for demanding thermal environments.
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Improved Molten-Zinc Corrosion Resistance: Selected Mo-W grades are used for components exposed to molten zinc.
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Adjustable Alloy Composition: Common grades include Mo-30W and Mo-50W, with other ratios available by specification.
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High-Temperature Strength: Suitable for specialized hot-zone equipment and industrial tooling.
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Multiple Product Forms: Rods, bars, plates, sheets, discs, wires, crucibles, and custom components may be available.
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Industrial and Electronic Applications: Used in zinc processing, glass production, and selected sputtering and thin-film applications.
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Custom Machining and Sizing: Dimensions and machining requirements can be evaluated for sourcing.
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Quality Documentation: COA, SDS, chemical composition, and inspection documentation may be requested, subject to supplier availability.
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Property
Specification
Product Name
Molybdenum Tungsten Alloy
Common Abbreviation
Mo-W Alloy / MoW Alloy
Primary Elements
Molybdenum (Mo) and Tungsten (W)
CAS Number
870196-77-3 is listed for certain commercial Mo-W alloy products; confirm for the specified composition
Common Grades
Mo-20W, Mo-30W, Mo-50W
Mo-30W Composition
Approximately 70 wt.% Mo / 30 wt.% W
Mo-50W Composition
Approximately 50 wt.% Mo / 50 wt.% W
Appearance
Metallic gray to silver-gray solid
Density
Composition-dependent; increases with tungsten content
Melting Behavior
Composition-dependent; confirm the grade-specific solidus and liquidus temperatures
High-Temperature Properties
High-temperature strength and elevated recrystallization resistance compared with unalloyed molybdenum in selected grades
Corrosion Resistance
Improved resistance to molten-zinc attack for suitable grades and operating conditions
Crystal Structure
Body-centered cubic solid solution for conventional Mo-W alloy compositions
Available Forms
Rod, bar, wire, sheet, plate, disc, crucible, sputtering target, and custom-machined parts
Dimensions
Standard or custom dimensions, subject to availability
Surface Finish
As-rolled, machined, ground, or other finish, subject to specification
Quality Documents
COA, SDS, chemical composition, and dimensional inspection reports, subject to availability
Grade
Nominal Composition by Weight
Typical Considerations
Mo-20W
80% Mo / 20% W
Molybdenum-rich composition for selected high-temperature and industrial components
Mo-30W
70% Mo / 30% W
Common grade for molten-zinc handling, glass processing, and specialized industrial components
Mo-50W
50% Mo / 50% W
Higher tungsten content for applications requiring a different balance of thermal and mechanical properties
Custom Mo-W
Customer-specified Mo/W ratio
For specialized equipment, research, and component manufacturing
1. What is molybdenum tungsten alloy?
Molybdenum tungsten alloy is a refractory metal alloy consisting primarily of molybdenum and tungsten. It is engineered for high-temperature performance and, in suitable grades, enhanced resistance to molten-zinc corrosion.
2. What are the common grades of Mo-W alloy?
Common commercial compositions include Mo-30W, containing approximately 70% molybdenum and 30% tungsten by weight, and Mo-50W, containing approximately equal weight percentages of both metals. Mo-20W and customized compositions may also be available.
3. What is molybdenum tungsten alloy used for?
Applications include molten-zinc handling equipment, zinc smelting components, glass-manufacturing tools, high-temperature industrial tooling, selected aerospace components, and sputtering targets for thin-film deposition. The correct grade depends on operating conditions and the required properties.
4. What forms of molybdenum tungsten alloy can be sourced?
Potential product forms include rods, bars, wires, sheets, plates, discs, crucibles, pins, sputtering targets, and custom-machined components. Availability depends on the alloy grade, dimensions, and supplier production capabilities.
5. How do I choose between Mo-30W and Mo-50W?
The choice depends on the operating temperature, molten-metal exposure, mechanical requirements, manufacturing method, and dimensional specifications. Mo-30W is used in applications such as zinc and glass processing, while Mo-50W offers a different balance of molybdenum and tungsten properties. Review grade-specific data before selection.
6. Can REG Metals source custom molybdenum tungsten alloy with a COA?
REG Metals can assist with sourcing material to customer specifications. A COA, SDS, chemical composition report, and dimensional inspection documentation can be requested, subject to supplier availability. Include the alloy ratio, dimensions, tolerances, quantity, application, and required documentation in your RFQ.
