Click image to view full size image
Item: Tungsten heating coil
Purity: 99.95%Min
Type: HW91/HW71/HW61/HW31/HW11 etc.
Size: According to customer's drawing and true sample.
Grade: WaL/W1(+AL)
Diameter: φ 0.4-1.3
Number of strands: 1-10(strands)
Difference between 2 feet(mm): Big heater element: ± 2mm; Small heater element: ± 1mm
Inside diameter tolerance: ± 0.3mm
Purity: 99.95%Min
Type: HW91/HW71/HW61/HW31/HW11 etc.
Size: According to customer's drawing and true sample.
Grade: WaL/W1(+AL)
Diameter: φ 0.4-1.3
Number of strands: 1-10(strands)
Difference between 2 feet(mm): Big heater element: ± 2mm; Small heater element: ± 1mm
Inside diameter tolerance: ± 0.3mm
| Type | Application |
| HW91 | Applied for making filament, shock-resistance filament and other high-terperature- resistance devices. |
| HW71 | Applied for making auto lamp filament and other anti-shock devices. |
| HW61 | Applied for making coiled-coil filament. |
| HW31 | Applied for making coiled-coil or trispiral CFL filament, incandescent filament and surpport. Applied for making stranded tungsten wire, tungsten heater element and other no special temperature required devices. |
| HW11 | Applied for making electrode and lead. |