Tungsten Bar

1. Brand: XZY

2. Catalog: Tungsten product

3. Material: Pure tungsten, tungsten alloy

4. Purity: W≥99.95%

5. Grade: W1, WAL1, WAL2, WCe, WLa

6. Density: 18.5g/cm³~19.2 g/cm³

7. Shape: Round, Bar, Rod, Block

8. Production Process: Sintering, Forging, Rotary forging, Rolling, Polishing.

9. Surface: Black, Chemical cleaned, Polished, Grinding, Ground finish.

10. Application: High temperature furnace heating elements, Welding electrode, Lamp filament.

11. Standard: ASTM B760

Product Introduction

Tungsten bar is a metal bar or metal rod made of tungsten powder as the main raw material through a special high-temperature powder metallurgy method. W bar can be doped with other elements and manufactured through sintering, forging, rotary forging, rolling and polishing. According to different application requirements, they can be divided into pure tungsten rods and tungsten alloy rods. Pure tungsten rods have high density, high melting point, high hardness and good electrical and thermal conductivity, while tungsten alloy rods improve the material's machinability, toughness and welding performance by adding alloying elements.

Luoyang Rare Metal Research Material Co.,Ltd can produce and forge various pure tungsten and tungsten alloy material bars, rods, strips and block products. With many years of industry production experience, we can provide customized solutions for customers before sales, and have sufficient product inventory.

Our Advantages

There are many advantages of our tungsten bars:

- The raw materials are all made of high-purity tungsten powder, and the impurity content of the rod billet is low.

- The sintering density of W bar is high.

- The forged finished product has a large deformation and good processing performance.

- During the processing, we focus on controlling the forging or rotary forging process to ensure high density of the product while effectively controlling the trend of grain growth and ensure high-density fine grains inside the product. This makes the product have significant advantages in post-processing and effectively improves its lifespan.

Product Properties

1) Main Characteristic

- High melting point (3410°C)

- Low thermal expansion rate (4.5×10-6/K)

- High electrical resistivity (5.5 μΩ/cm at 20°C)

- Low vapor pressure (1600℃, 3000℃F)

- Good thermal conductivity (129 W/m x K at 20°C)

- High density (19.3g/cm3)

3) Mechanical properties:

- Many factors can affect the mechanical properties of W bar, including microstructure, impurity content, other alloy materials, and heat treatment (annealing conditions). By providing pure tungsten and various tungsten alloys material, we can meet the different needs of various users.

4) Chemical properties:

It has good corrosion resistance at humidity below 60%. At 250°C, tungsten will oxidize in oxygen. However, molten glass, nitrogen, inert gases, molten metals and ceramic oxides have little effect on products.

Product Application

Our tungsten bars are widely used in many industries, including:

- It can be used in sapphire crystal furnaces and other high temperature furnaces or vacuum furnaces, mainly as heating elements, heater, supports, and connectors

- It can be used as tungsten electrodes in the glass melting industry and rare earth smelting industry;

- It can be used as high temperature resistant parts in the semiconductor plasma implantation industry

- It can be used to make parts for electric light sources and electric vacuum industries.

- It can be used to make tungsten contacts, which can be used for car horns;

- It can be used to make welding electrodes.

- It can be used for radiation shielding parts, etc.