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Place of Origin: | P.R. China |
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Brand Name: | FOTMA |
Certification: | ISO 9001:2000 |
Model Number: | Customized |
Minimum Order Quantity: | 1 pc |
Price: | Negotiable |
Packaging Details: | Plastic boxes, Paper cartons |
Delivery Time: | 20-25 days |
Payment Terms: | T/T, L/C, Western Union, PayPal |
Supply Ability: | 2 MT / Month |
W Content: | > 99.95% | Density: | > 19.1 G / Cm3 |
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Diameter: | 1.0mm - 100mm | Length: | 10mm - 1200mm |
Tolerance: | + / - 0.05mm | Surface: | Black, Machined, Ground |
High Light: | FOTMA Alloy Polished Tungsten Products,FOTMA tungsten alloy rod,Alloy Polished Tungsten Rods |
Tungsten Products Pure / Polished Tungsten Rods For Industry and Alloy Products
The features of the tungsten
1. The highest melting point.
2. Unique low coefficient of thermal expansion.
3. The very high level of dimensional stability.
Tungsten is resistant to corrosion when the humidity is below 60%. However, it must be protected at elevated temperatures. Tungsten can oxidize in the presence of oxidizing gases at temperatures above 250° C. Despite this vulnerability, Molten glass, nitrogen, inert gases, molten metals and ceramic oxides only slightly affect it.
Tungsten Rods Availability
Tungsten rod is manufactured as random length pieces or cut to customers' desired lengths. Standard diameter and length tolerances are listed as follows. Other, closer tolerances can be quoted on request. In addition, there are three different surface processes or finishes which are provided, depending upon the desired end use.
The features of tungsten rods
The tungsten rods have the black and polished surface. The purity of the tungsten products rods is higher than the 99.95%. And the density of the tungsten products rods is higher than 19.2g/cm3. The surface roughness is less than 1.6. The dia is between 1.0mm and 120mm. It fully comply with the ASTM and GB.
The application of the tungsten rods
The tungsten prodcuts rods are used in the manufacturing of electric light source and electric vacuum parts. They are the wonderful electric shock materials. At the meantime, the tungsten rods are used as a means of high temperature and high temperature structure parts. In the rare earth, they are also used as the electrode. The tungsten rods are also used in the filament, cathode and components for electron tubes, electrode for the gas discharge tube and so on. They are appeared in the grid siderod, lead, support, electrode for the discharge lamp and others. Nevertheless, they can be in the grid siderod, support, lead and electrode and so on.
Specifications of Tungsten Rods:
Diamenter(mm) |
Tolerance(mm) |
|
Black rod |
Ground |
|
<=5.0 |
±0.5 |
±0.03 |
5 |
±0.5 |
±0.03 |
>5.0-8.0 |
±0.5 |
±0.03 |
>8.0-16.0 |
±0.5 |
±0.08 |
Tungsten Material Grades We Supply:
Type |
Purity of Tungsten |
Application |
WAL 1 |
>=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% |
Products Show: