Fine Grain Size Tungsten Rod used in Glass Industry
The appearance: Divided forging bars and polished rod; the forging bars surface is allowed to have oxidize film and slight forging hammer mark;polished molybdenum bar surface presents metallic luster and has no obvious oxidized phenomenon. The two surfaces have no defects, such as divided layer, crackle, burr and vertical crackle, etc.
The specification: The diameter and length deviation are consulted by both parties according to GB4188-84 standard or user's demand.
Main application: Used for making electric vacuum device and electric light source parts.
| type | purity | application |
| WAL1 | >=99.92% | filament,cathode and components for electron tubes,electrode for the gas discharge tube.etc. |
| WAL2 |
| WAL3 | >=99.92% | grid siderod,lead,support,electrode for the discharge lamp,etc. |
| W1 | >=99.95% | grid siderod,support,lead and electrode,etc. |
| W2 | >=99.92% |
| furnished form | specified diameter | min.length | D.tolerance |
| wroughted | 2.8<=d<5.0 | 600 | ±2% |
| 5.0<=d<6.5 | 300 |
| 6.5<=d<11.0 | 200 |
| straightened | 0.8<=d<1.0 | 1000 | ±2% |
| 1.0<=d<3.0 | 800 |
| ground | 0.8<=d<3.0 | 800-1000 | ±0.03mm |
| 3.0<=d<6.5 | 300-600 | ±0.05mm |
| 6.5<=d<10.0 | 200 | ±0.08mm |
Our advantage:
Wroughted/Straightened/Ground
Large stock , fast delivery(for ISO standard diameters).
100% Quality guarantee.
Zhengzhou Sanhui Co. Ltd is a professional large-scale manufacturer of all types of refractory metal
materials and their alloy products (like tungsten, molybdenum, TZM,tungsten alloy,Tantalum, etc). Our main products include various tungsten, molybdenum, titanium, tantalum, niobium, zirconium and nickel products, such as rods, sheets, wires, crucibles and boats with various specifications. We can also provide various special-shaped products according to customers requirements. Currently, Sanhui metal products are already exported to Japan,Southeast Asia, German, France, USA, Taiwan and other countries and regions.
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