99.95% high-purity molybdenum electrodes, engineered to your furnace

Life depends mainly on melting temperature, glass chemistry, electrode layout, current density and cooling management. It varies widely between furnaces, so there is no universal percentage figure. We can share references from similar duties and support standard-size sample trials on your line; actual results are documented in the technical agreement and measurement records.

Twelve fields: glass furnaces (container, packaging, pharmaceutical, PV and electronic glass), ceramic fiber and rock wool, fiberglass tanks, rare-earth molten-salt electrolysis, crystal growth, and quartz and optical glass.

Standard-size samples can be requested for on-line testing. Quantity, size and cost sharing follow the agreed trial plan; special sizes and larger trials are handled by mutual agreement.

Submit your furnace structure and process conditions through the form at the bottom of the page, or add WeChat weibeam2026. Our engineering team replies within 2 hours during business hours and provides a preliminary proposal within 24 hours. Requests received outside business hours are handled the next business day.

Core parameters include molybdenum content (≥99.95%, higher purity available), density (≥10.2 g/cm³), long-term working temperature (about 1300 °C, short-term limit about 1600 °C), current density (1–3 A/cm²), and sizes such as Ø20–100mm rods and 3–10mm plate. See the data tables in the product section.

Rods are mostly used for sidewall or bottom boosting and all-electric melting in glass furnaces; plates are common in fiberglass furnaces and throat heating. The choice depends on furnace structure, power supply and melting process; share the furnace data and our engineers will recommend a layout.

Above 600 °C in air, molybdenum oxidizes rapidly into volatile molybdenum trioxide. In practice, the section above the melt is protected with a water-cooled jacket or inert-gas cooling, and the electrode is inserted after the melt reaches level. Oxidation-resistant coatings or Mo-Zr dispersion-strengthened grades can also reduce oxidation loss.

Pure molybdenum offers the best overall value for most glass melting duties. MoLa and TZM (Ti-Zr-Mo) alloys have higher recrystallization temperatures and better high-temperature strength and creep resistance, suited to high current density, heavy duty or longer replacement intervals. Select by temperature, medium and budget.