Molybdenum Sheet: A Key Metal Material for High-Temperature Industries
Molybdenum sheet is a refractory metal plate made from high-purity molybdenum (Mo) through smelting, forging, rolling and precision heat treatment. It has a silvery metallic luster and serves as a core basic material for high-end high-temperature manufacturing, semiconductors and the vacuum industry.
I. Core Performance Advantages
• Ultra-high melting point: Molybdenum has a melting point of 2623℃. It maintains high strength and creep resistance without softening or deformation at above 1500℃ in inert or vacuum environments.
• Excellent thermal properties: Thermal conductivity is about 138 W/(m·K) (nearly three times that of stainless steel), with low thermal expansion coefficient and stable dimensional stability under thermal cycling.
• High purity and stability: Industrial-grade purity ranges from 99.95% to 99.99%. It features low vapor pressure and resistance to acid and alkali corrosion, suitable for high-vacuum and harsh chemical conditions.
• Good workability: It can be cut, welded, bent and polished into precision components and special-shaped parts.
II. Main Application Fields
• High-temperature furnaces and thermal field components: Heating elements, heat shields and sintering boats for vacuum furnaces, thermal field components for sapphire crystal growth furnaces, which can withstand temperatures above 1800℃ for a long time.
• Semiconductors and electronics: High-purity molybdenum sputtering targets, chip masks, electrodes for power devices and X-ray tube components, ensuring process accuracy and purity.
• Glass and metallurgy: Electrodes for glass melting furnaces and flow guides for molten glass, resistant to molten glass corrosion with stable electrical conductivity.
• Aerospace: Rocket nozzle liners, high-temperature structural parts for engines and combustion chamber components, lightweight and high-temperature resistant.
• New energy: Photovoltaic thin-film electrodes, LED substrate supports and thermal components for nuclear reactors.
III. Production and Specifications
Molybdenum sheet is mainly produced through powder metallurgy or electron beam melting → hot rolling → warm/cold rolling → vacuum annealing → finishing.
The conventional thickness is 0.2–25 mm and width ≤ 1000 mm. Sizes and surface treatments (alkali cleaning, polishing, grinding) can be customized.
Common grades include Mo1, Mo2 and high-temperature molybdenum alloys (such as TZM alloy sheet) to meet different strength and temperature requirements.
IV. Summary
With comprehensive advantages of high temperature resistance, high thermal conductivity, low expansion and high purity, molybdenum sheet has become an irreplaceable key material in high-temperature vacuum, semiconductor, aerospace and new energy fields. With the upgrading of high-end manufacturing and precision electronics industries, the demand and quality requirements for molybdenum sheet continue to increase, making it an important metal plate supporting high-temperature technologies in modern industry.
If you have any questions, please send email to info@mostenalloy.com.
