Woven molybdenum for technical mesh components
Molybdenum wire mesh is formed by interlacing molybdenum wires. Its open structure can serve as a screen, support layer or electrode component when the material and weave are matched to the application.
Molybdenum is a refractory metal valued in thermal-processing and electrical applications. For mesh selection, wire size, opening, material grade and the operating environment need to be considered together.
Match the mesh to the operating environment
High-temperature applications commonly involve vacuum or a suitable controlled atmosphere. Molybdenum oxidizes in air as temperature rises, so a high melting point is not a continuous-use temperature rating.
Tell us the working temperature and atmosphere, along with your drawing or intended use. This helps establish a relevant specification without assuming that all molybdenum meshes perform alike.
Custom molybdenum woven-mesh specification guide
Custom mesh specifications available. Use the combinations below as starting points, or send your drawing and application requirements.
| Mesh count / in | Wire diameter (mm) | Calculated nominal opening (mm) |
|---|---|---|
| 10 | 0.6 | 1.94 |
| 20 | 0.4 | 0.87 |
| 30 | 0.3 | 0.5467 |
| 40 | 0.23 | 0.405 |
| 50 | 0.2 | 0.308 |
| 60 | 0.15 | 0.2733 |
| 70 | 0.12 | 0.2429 |
| 80 | 0.13 | 0.1875 |
| 90 | 0.12 | 0.1622 |
| 100 | 0.1 | 0.154 |
| 120 | 0.09 | 0.1217 |
| 150 | 0.063 | 0.1063 |
| 180 | 0.053 | 0.0881 |
| 200 | 0.053 | 0.074 |
Square-opening woven mesh geometry is calculated from mesh count and nominal wire diameter. Final grade, weave, tolerances and dimensions are confirmed with your quotation.
Calculated nominal opening = 25.4 ÷ mesh count − wire diameter (mm), rounded to 0.0001 mm where needed. These design values are not inspection results or manufacturing tolerances.
The weave for your selected square-mesh combination is confirmed with the quotation.
Specify your custom molybdenum mesh
Start with the information you have: mesh or opening, finished size and quantity. A drawing, reference sample or short application description is also welcome.
| Custom requirement | Details to include |
|---|---|
| Material requirement | Specify molybdenum or the required molybdenum alloy, composition limits and material-document needs. |
| Mesh construction | Mesh count, wire diameter and target opening; specify a weave if your design requires one. The table does not assign a weave to each row. |
| Finished dimensions | Width × length, piece or roll format, quantity and any component drawing or cut-edge requirements. |
| Operating conditions | Normal and peak temperature, exposure time, vacuum level or process gas; include any mechanical loading. |
| Surface condition | Required finish, cleanliness and restrictions on residues or coatings. |
| Tolerances and inspection | Identify critical wire, opening or finished-size tolerances and any inspection records needed. |
You do not need to complete every technical detail before requesting a quote.
Application areas
Molybdenum mesh can be considered for the following technical designs after the material and service conditions have been reviewed.
- Mesh screens and supports in vacuum or controlled-atmosphere equipment.
- Electrode and electrical components.
- Laboratory screening, separation and material-development assemblies.
Frequently asked questions
Can molybdenum mesh be used in a high-temperature air furnace?
Do not assume that unprotected molybdenum mesh is suitable. Molybdenum oxidizes in air at elevated temperatures. Temperature, exposure time and atmosphere must be reviewed; a high melting point is not an air-service rating.
Does mesh count define the opening size?
Not on its own. Wire diameter and weave also determine the structure. If you have a required opening or filtration task, include that information instead of relying only on mesh count.
Are molybdenum and molybdenum-alloy mesh interchangeable?
No. A specified alloy can have different composition and processing requirements. If your drawing names a grade or alloy, include it so the quoted material can be checked against the design.
What information do I need for an inquiry?
A short application description or drawing is enough to begin. If available, add dimensions, quantity, working temperature and atmosphere. You do not need to complete every technical detail before contacting us.
Tell us about your molybdenum mesh project
Send your drawing or tell us what the mesh needs to do. Include the operating temperature and atmosphere if known.
Request a Molybdenum Mesh Quote
An application description is enough to start. Dimensions and quantity can be added when available.
Related reading: Nickel foam, nickel fiber felt or nickel mesh: how to specify the structure.
