Factory Spot Direct Sales of Pure Tungsten Wire Supply

Description:

Once tungsten filaments are used at high temperatures and recrystallized, they become very brittle and are very easy to break under impact or vibration. In some electric light source products that require high reliability, in order to prevent the filament from breaking, 3-5% rhenium is often added to the doped tungsten filament, which is called tungsten rhenium filament. It can reduce the ductile-brittle transition temperature of tungsten to room temperature or below. This is a very peculiar rhenium effect. So far, no element has been found to replace rhenium and produce the same effect in tungsten.
Tungsten has good acid and alkali resistance at room temperature, but it is easily oxidized in humid air, so thin tungsten filaments cannot be stored in a humid environment for too long. In addition, tungsten begins to react with carbon to form tungsten carbide at around 1200℃, so this problem should be paid attention to in the hydrogen burning treatment of the filament, otherwise the tungsten reacts with the graphite lubricant on its surface, and the filament will become brittle and break.

Specifications:

Packing & Delivery:

To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided.

Our inspection equipment:

FAQ:

Q: What information should I let you know if i want to get a quotation?

A: The required material dimension (Thickness*Width*Length,diameter*length; if possible, please kindly supply us drawings).
The required more information, such as Surface Condition, Tolerance Request, The Quantity, and other mechanical and technical details.

If it is possible, please also provide the application of products, we will recommend the most suitable products with details for confirmation.

Q: How do you gurantee the quality of the products?

A: Each step of production and finished products will be carried out inspection by QC department before storing in the warehouse. NG goods are not allowed in the completed goods warehouse.

Q: Can you guarantee the prompt delivery?

A: Yes, when we get your inquiries, not only we will evaluate the more competitive price, but also we can get the most reasonable delivery time. So the prompt delivery can be guaranteed.

Q: What is the shipping cost?

A: The shipping cost is determined by the destination port, weight, packing size, total CBM of the products, we will try best to get the most reasonable shipping cost from the forwarders or express couriers to help you save more money.

Q:What is the transportation way?
A:If the Gross Weight ≤45kg, it's better by express such as TNT, DHL, FedEx,, etc.
If the Gross Weight between 45kg to 100kg, by express or by air to your nearest airport can be both considered.
If the Gross Weight ≥ 100kg ,you can choose by Air or Sea to the nearest port.