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Grade W-1 W-2 W-3 W-4 Purity 99.95% Dia 2-100mm * L(<800)mm
Specification:
Tungsten content | Type | Diameter (mm) | Dia.tolerance (mm) | Length (mm) | L tolerance (mm) | Liner rate |
99.95% | Sintering rod | 40-100 | ±3 | 500max | ±5 | ±5% |
Froged rod | 20-80 | ±2 | 800max | ±5 | ±2% | |
Ground rod | 2-60 | ±0.1 | 650max | ±1 | ±0.5% | |
Application | Be used for drawing tungsten wires, electrodes, heaters in high temperature vacuum furnace and so on. | |||||
Chemical Compositions:
Grade | Tungsten content | Contents of Impurity Elements | |
Total Content | Content of each element | ||
WAL1,WAL2 | 99.95%min | 0.05%nax | 0.01%max |
W1 | 99.95%min | 0.05%max | 0.01%max |
W2 | 99.92%min | 0.08%max | 0.01%max |
NOTE:Potassium is not counted in the impurity content | |||
high purity tungsten round bar