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.
