Tungsten Filaments Temperature Resistance Data And Application In Quartz Heating Tube
Tungsten Wire Temperature Resistance Data
1. Melting Point (Melting Temperature): 3422°C
This is the critical melting point of pure tungsten metal, at which the tungsten wire will directly melt and break.
Long-Term Working Temperature
Ordinary incandescent lamp tungsten wire: 2200‑2500°C (inside a bulb filled with inert gas)
Halogen lamp tungsten wire: 2600‑2800°C, the halogen cycle slows down tungsten evaporation, giving it a longer life
Maximum for high-temperature vacuum-heating tungsten wire: safe long-term around 2500°C; short-term can approach 3000°C, but it will sublime quickly, thin out, and break
⚠️ Note: You can't use it like this in air! Tungsten will oxidize and burn at high temperatures, so it can only operate at thousands of degrees in a vacuum or inert gas environment.
| Invironment | Tungsten maximum temperature | Remark |
| Vacuum or argon gas protect circumstance | 2500c in long-term working condition | industries heating application |
| Air common open air | ≤400°C under open air | Over 400°C it will be broken shortly under oxide air condition |
Standard industries application temperature check for ref ( 220v short wave halogen quartz heating lamps)
| Working power | Tungsten inside temperature | Quartz tube temperature | Temperature color |
| 50% power | 1400-1600 | 450-550°C | Orange red |
| 100% ( Normally working) | 2200-2500°C | 650-850°C | Yellow white |
| Over heat close to maximum | 2600-2800°C | 900-1000°C | glaring white and tube wall turned black |
| Melting point | 3422°C | Quartz sofe and melting | Tungsten melting to broken shortly |
As a professional infrared heating lamps manufacturer for over 17 years. Infrared heating tube temperature will also influenced by quartz purity rate.
Newplanet use 99.99% high purity quartz for ir infrared halogen heating tubes
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