High quality tungsten sheet
1, Grade: W1, W2, W3, W4
2, Width*Length: (2.0-500.0mm)*(2.0-500.0mm)
3, Thickness: 0.2mm-15.0mm
4, Density: Purity 99.92%, 99.98% can also be achieved if special demanded.
5, Surface: Sintering surface, Forged surface, Ground surface
Tungsten sheet and plates are produced from billets by special cold and hot rolling technology. Plates can be used to make: electrodes, heat elements, heat shield, Boats for electronics, lightning, and electro vacuum industries.
Specification of tungsten sheets
| Thickness | Thickness tolerance | Width tolerance | Length tolerance |
|---|
| Grade I | Grade II |
|---|
| 0.10-0.20 | ±0.02 | ±0.03 | ±3 | ±3 |
| >0.20-0.30 | ±0.03 | ±0.04 | ±3 | ±3 |
| >0.30-0.40 | ±0.04 | ±0.05 | ±3 | ±3 |
| >0.40-0.60 | ±0.05 | ±0.07 | ±4 | ±4 |
| >0.60-0.80 | ±0.07 | ±0.08 | ±4 | ±4 |
| >0.80-1.0 | ±0.08 | ±0.12 | ±4 | ±4 |
| >1.0-2.0 | ±0.12 | ±0.20 | ±5 | ±5 |
| >2.0-3.0 | ±0.20 | ±0.30 | ±5 | ±5 |
| >3.0-4.0 | ±0.30 | ±0.40 | ±5 | ±5 |
| >4.0-6.0 | ±0.40 | ±0.50 | ±5 | ±5 |
| Type | Process | Delivery condition | Size(mm) |
|---|
| Thickness | Width | Length |
|---|
W1
W2
W3
W4 | P/M | Cold rolled (Y)Stress relief annealing (m) | 0.10-0.20 | 30-250 | 50-500 |
| >0.20-0.4 | 50-250 | 50-500 |
| Hot rolled (R)Stress relief annealing (m) | >0.40-4.0 | 50-200 | 50-200 |
| >4.0-6.0 | 50-200 | 50-200 |
| Application | Be used in electronics, illumination, vacuum plating, electron-vacuum, shield, high temperature furnace industry and so on. |
Production process of tungsten sheet
Materials---hot rolling---annealing---cold rolling---leveling---annealing---machining---tungsten sheet
Production equipments
four-high cold mill, vacuum annealing furnace, W43G series straightener, hydraulic plate shears, water jet, wire cutting machine, flat-stone mill
Applications of Tungsten Sheet
Since the melting point of tungsten has reached 3380oC, tungsten sheet is widely used in reflection shield, cover plate applied in the sapphire growth furnace, reflection shield, heating tape, connecting pieces applied in vacuum furnace, sputtering target applied in plasma coating film, and high temperature resistance boat.
Quality standard
GB/T 3875-2006 (tungsten plate)
As a high performance materials, pure tungsten has high melting temperature, high density, low vapor pressure, low thermal expansion combined with good thermal conductivity, sufficient electrical resistance, high modulus of elasticity.
Tungsten sheets and disk are available with alkali washed or ground finish.
Pure tungsten Products is widely used for Furnace parts, Semiconductor base Plates, Components for Electron Tubes, Emission Cathodes for Electron Beam Evaporation, Cathodes and Anodes for Ion Implantation, Tubes / Boats for Sintering of Capacitors, Targets for X-ray Diagnostics, Crucibles, Heating Elements, X-ray Radiation Shielding, Sputtering Targets, Electrodes.
