Which rod to choose: tungsten, molybdenum, copper or aluminum
Four high-purity metal rods with melting points from 660°C to 3422°C and different conductivity and density — choose the material by your process.
Material comparison
| Material | Purity | Melting point | Density (g/cm³) | Key properties | Typical uses |
|---|---|---|---|---|---|
| Oxygen-free copper (OFC) | Cu ≥ 99.95% | 1083°C | 8.9 | Conductivity ≥ 99% IACS; oxygen < 10 ppm; ductile | Electronic component electrodes, conductive rods, vacuum components, research |
| High-purity aluminum (Al) | Al ≥ 99.5% | 660°C | 2.7 | Lightweight, good conductivity, easy to machine | Aluminum targets, structural parts, heat sinks, experiments |
| High-purity tungsten (W) | W ≥ 99.9% | 3422°C | 19.3 | Low vapor pressure, high hardness and density | High-temperature electrodes, TIG welding electrodes, X-ray targets, filaments |
| High-purity molybdenum (Mo) | Mo ≥ 99.9% | 2623°C | 10.2 | High melting point, low expansion, high conductivity | Sputtering targets, high-temperature furnace parts, semiconductor processes |
Quick guide: high temperature → tungsten; sputtering targets / semiconductors → molybdenum; high conductivity and ductility → oxygen-free copper; lightweight targets and structures → aluminum. Not sure? Tell us your application and we will help confirm.
Diameters (all 100 mm long, sold per rod)
| Material | Diameters (mm) |
|---|---|
| Oxygen-free copper | 0.3, 0.5, 0.8, 1.0, 1.5, 2.0, 3.0, 4.0, 5.0, 6.0, 8.0, 10, 12, 15, 16, 18, 20, 22, 25, 28, 30, 35, 40, 45, 50 |
| High-purity aluminum | 1.0, 1.5, 2.0, 3.0, 4.0, 5.0, 6.0, 8.0, 10, 12, 15, 16, 18, 20, 22, 25, 30, 35, 40, 50 |
| High-purity tungsten | 0.3, 0.5, 0.8, 1.0, 1.2, 1.5, 2.0, 2.4, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10, 12, 13, 15, 16, 18, 20 |
| High-purity molybdenum | 0.4, 0.5, 0.6, 0.8, 1.0, 1.5, 2.0, 3.0, 4.0, 5.0, 6.0, 8.0, 10, 12, 13, 15, 16, 18, 19, 20, 22, 25, 30 |
Other sizes on request with a drawing.
When you request a quote, please tell us: material, diameter and number of rods.
Email us for a quote: [email protected]