Tungsten Bar

What Is Tungsten Bar?

Tungsten Bars are a type of metal that is typically used for crafting. It is a hard metal that features good strength & high-temperature resistance. Tungsten Bars can be rolled, drawn, or flattened. They are then sintered and hardened to obtain their final shape. Unlike other metals, tungsten has a good amount of creep resistance. Moreover, it offers electrochemical corrosion resistance.

Tungsten Bars are also a type of material that is widely used for construction. They can be used in heat conductors and crankshafts. It has high strength & rigidity at high temperatures and can be combined with iron and copper. This makes it an ideal material for some of the more expensive heavy metal alloys. The uses of Tungsten Bars range from the aerospace industry to the automobile industry.

One of the greatest benefits of Tungsten Carbide Rods is their high density. It is 1.7 times as dense as lead, making it a perfect choice for racing car ballast. Another benefit of tungsten bars is their vibration absorption. This means that they are better at absorbing vibration than steel bars. Tungsten Alloy Rods are used for a wide variety of applications, including aerospace engineering, alloying, and radiation shielding. They are also used to manufacture guidance platforms and heat-resistant steels.

Advantages of Tungsten Bar

Enhanced durability
The strength of Tungsten Bar is unmatched. Unlike other metals, tungsten does not break, and it rarely corrodes. Thus, the material is suitable for infrastructure and construction projects requiring strength and durability, such as bridges and highways.

High melting point
Tungsten Bar have the highest melting point compared to other metals. They can withstand extreme heat levels during welding, ensuring excellent structural connection. Their superior properties make them ideal for constructing pipe fittings and parts that require welding, such as gas pipelines.

Resistance to wear and tear
Pure Tungsten Bar have a high resistance to wear and tear compared to other metals. They can resist impact better than other metals. Thus, they are suitable for constructing mechanisms subjected to friction and wear, such as drilling tools, saw blades, and heavy machinery drill bits.

Reliability
Tungsten Bar have a longer lifespan than other metal materials. They are strong and durable and can withstand harsh weather conditions. Their reliability and superior mechanical properties make them suitable for constructing high-tech infrastructure and buildings.

Cost-effectiveness
Though Tungsten Bar are relatively expensive compared to other materials, they are cost-effective in the long run. You will save money with unmatched durability, resistance, strength, and reliability, as they will require minimal repair and maintenance, making them ideal for critical and complex infrastructure projects.

Add to Inquiry

Tungsten Round Bar

1. Product name: Tungsten Round Bar. 2. Density: 19.3g/cm3. 3. Application: electronic material. 4. Purity: 99.95%min. 5. Material: W1 W2. 6. Chemical Composition: 99.95%Min Tungsten. 7. Melting

Why Choose Us

Our Factory

Xi'an Zhanwo Metal Materials Co., Ltd. is located in the University Town High-tech Industrial Park, Chang'an District, Xi'an City, Shaanxi Province, China. We have been focusing on nickel-titanium memory alloy and tantalum-niobium products for more than 13 years.

Excellent Team

The company now has a professional nickel-titanium memory alloy wire R&D team and a nickel-titanium alloy cutting-edge technology public relations team. It has created a rare and precious metal team integrating R&D, design and production. It is an expert in the field of high-performance alloys and high-precision processing.

Rich Experience

We focus on the production of nickel-titanium memory alloy and have more than 13 years of production experience

Global Sales

Our products are exported to excellent companies in related fields all over the world and have been recognized and praised internationally. We have close cooperation with the United States, Italy, Germany, Vietnam, Indonesia, South Korea, etc.

Types Of Tungsten Bar

Tungsten heavy alloy rod (WNiFe/WNiCu Rod)
The liquid-phase sintering process creates a tungsten heavy (also known as "high density") alloy rod. This rod is 85-99% pure tungsten. In addition to its extremely high density (16.5g/cc to 19.0g/cc), tungsten heavy alloy rod is coveted for its superior strength, less thermal expansion, and easier machinability than pure Tungsten Bar.

Tungsten copper bar (W Cu Rod)
Tungsten copper rods have excellent conductivity and resistance to electrical erosion. While the infiltrated copper has a special cooling effect, when working temperatures reach as high as 2000°C, the rod relies on the tungsten skeleton structure to give it strength. A tungsten copper rod is produced using the infiltration sintering process in a fractional range of W Cu 50/50 to W Cu 90/10. Due to their unique variances in melting point, density, and numerous other physical characteristics, tungsten and copper cannot be combined. Different metal component ratios will create specific physical and mechanical qualities.

Lanthanated tungsten bar (W La Rod)
The dispersion strengthening method dopes lanthanum oxide into pure tungsten to create a lanthanide Tungsten Bar. The lanthanum oxides improve the alloy's heat resistance, conductivity, and crystallization temperature beyond a pure Tungsten Bar. As a result, the lanthanide Tungsten Bar is the recommended electrode material in both DC and AC welding operations. A lanthanide Tungsten Bar has excellent arc stability at low amperages, a minimal burn rate in high amperage conditions, good current carrying capability, little spark erosion, and poses no radioactive risks.

How to Cut Tungsten Carbide Rod

As the carbide rod may be used for multiple purposes and thus its size may need to be altered according to the requirements. However, there could be numerous ways to cut the tungsten carbide rod.

Cutting with a free-hand

Use a tabletop grinder to secure the cutting wheel. Different grinders behave differently during this process. You can follow the right technique according to the grinder you are using.

You will need a marker to mark the area where you will be cutting the carbide rod.

Press the carbide against the diamond grinding wheel firmly with both hands after turning on the grinder. The carbide rod should be removed from the cutter as far as possible and cooled in clean water.

As you finish chopping the remaining 50 percent of the material, slide the carbide rod into the cutter on the side you have not yet cut. You may need to remove the carbide rod again and cool it in water if necessary.

Use cutting tool

Place the carbide rod into a vice to ensure it is secured in position. However, carbide may crack if placed under pressure, despite being extremely hard. Hold the carbide in the vice and don't apply excessive pressure, but keep it tight enough that it won't move.

The diamond-cutting wheel should be tightened to the angle grinder so that it won't move.

It would help if you marked the precise place where you will cut the carbide rod with a marker.

Then, you should start the angle grinder and cut the carbide rod directly through. It would help if you didn't use the grinder's wheel to cut the carbide rod. Using a cutter that is too strong may cause the carbide to shatter. The excessive heat built up in the cutter, and the carbide resulted.

The cutter and carbide should not be lubricated. Using a lubricant will cause the cutting wheel to be less effective when it comes to cutting.

Application of Tungsten Bar

Electronic field: Tungsten bar is mainly used as electrode material in high-frequency electronic tubes, semiconductor devices, electron beam equipment and other high-voltage applications. In these applications, tungsten bar can withstand high current and high temperature, and is not easily ablated, making it an ideal electrode material.

Aerospace: Tungsten bar has high strength, high melting point, high stability and other characteristics, and has been widely used in the aerospace field. In the manufacturing process of launching rockets, satellites and other spacecraft, tungsten bar are mainly used to manufacture high-temperature components such as engine nozzles and combustion chambers, making important contributions to the development of the aerospace industry.

Military field: When modern fighter jets strike targets, they will drop a metal rod made of tungsten, known as a tungsten bar. This tungsten bar is dropped at extremely high speeds from heights of tens of kilometers to hundreds of kilometers, with high accuracy and the ability to cause tremendous damage to the target. This new type of strike method demonstrates the unique role of tungsten bar in the military field.

Industrial field: Tungsten bar is also widely used in industrial fields such as glass melting, high-temperature furnace heating elements, structural parts, welding electrodes, and filament. Its good thermal conductivity, electrical resistance, and high elastic modulus make tungsten bar irreplaceable in these fields.

Other fields: In addition, tungsten bar are also used to manufacture support wires, lead wires, printer needles, sputtering targets, and other products, providing high-quality raw materials for multiple industries.

How to Maintain Tungsten Bar

Handling and storage
●Handle with care: Tungsten is a hard and brittle material. Avoid dropping or subjecting Tungsten Bar to impact, as this can lead to chipping or breakage.
●Avoid contaminants: Keep Tungsten Bar away from contaminants, such as oils and greases, which can affect their performance.

Cleaning
●Use mild cleaning agents: When cleaning Tungsten Bar, use mild cleaning agents and solvents. Harsh chemicals can react with tungsten and compromise its surface integrity.
●Avoid abrasives: Refrain from using abrasive materials for cleaning, as they can scratch or damage the surface.

Temperature considerations
●Avoid rapid temperature changes: Tungsten Bar can withstand high temperatures, but rapid temperature changes, especially extreme quenching, may lead to thermal stress and potential cracking.
●Gradual cooling: Allow Tungsten Bar to cool gradually after exposure to high temperatures to minimize thermal shock.

Welding applications
●Check for contamination: In welding applications, ensure that the tungsten electbare is free from any contamination, which can affect the quality of the weld.
●Proper grinding techniques: When grinding tungsten electbares for welding, use proper techniques and equipment to maintain the correct tip geometry.

Storage conditions
●Dry storage: Store Tungsten Bar in a dry environment to prevent corrosion or oxidation.
●Avoid humidity: If Tungsten Bar are exposed to high humidity, consider using moisture-absorbing materials in storage areas.

Avoid excessive force
●Minimize bending: Tungsten Bar are rigid but can be brittle. Avoid applying excessive force or bending, especially if the rod has a small diameter.

Use in appropriate applications
●Know the limitations: Be aware of the limitations of Tungsten Bar. While they excel in high-temperature and high-strength applications, they may not be suitable for applications requiring high ductility.

Regular inspection
●Check for damage: Periodically inspect Tungsten Bar for any signs of damage, such as cracks or chips.
●Replace damaged rods: If any damage is detected, replace the Tungsten Bar to prevent compromising the performance of the material.

Proper machining practices
●Use suitable tools: When machining Tungsten Bar, use tools that are designed for hard materials to avoid excessive wear and ensure precision.

Process of Tungsten Bar

Raw material
The mineral that contains tungsten is called Sheelite or wolframite. Ammonium-Para Tungsten is the initial raw material used in the manufacturing process. The initial part of the process, known as the "Wet" process, entails a series of precipitations, separations, and dissolutions.

Reduction
The APT is heat reduced in hydrogen to produce pure tungsten powder (W). The grain size of the tungsten power can be changed between 1 and 20 um by altering the reduction process.

Carburization
Carbon and tungsten are combined in the correct ratios. Then, high-temperature hydrogen is used to heat the mixture while tungsten carbide powder forms (WC).

Ingredient weigh-In
Various WC powders and binder Cobalt (Co) powder are considered for cemented carbide production. The mixture is wet milled after the WC, Co, and other additives have been weighed in according to the specified composition and quality of cemented carbide.

Milling
Milling affects both the slurry and the carbide grain's homogeneity. Therefore, milling is crucial for producing uniform cemented carbide after sintering.

Spray-drying
The slurry must be dried after milling, perhaps by spray-drying it into powder form. The components of this "Ready-To-Press" (RTP) powder are gathered into spherical agglomerates.

Blending test
The RTP-composition powder's and pressing characteristics are crucial for the subsequent process. First, the RTP-size powders and form are measured. Additionally, the powder must flow well to fill press tool cavities consistently.

Compaction
RTP powder is first pressed into compacts when cemented carbide production ramps up.

Soft machining
Before sintering, the compacts may occasionally be softly machined or green-shaped into the appropriate shape.

Sintering
The cemented carbide receives its characteristics as a high-strength engineering material during the last process step of sintering. The sintering procedure is carried out at such a high temperature to allow the molten binder and WC to unite. High isostatic gas pressure could be used during or without the sintering (HIP).

Machining
The compact has shrunk by approximately 50% volume after the sintering. After sintering, several CC blanks are prepared for delivery. To create finished tools, blanks are machined using various techniques, such as EDM, turning, drilling, and grinding.

Quality control
Before shipment, the cemented carbide pieces are subjected to quality control; dimensions, shape, and physical characteristics are examined before the tungsten carbide rods are approved.

How to Choose the Grade of Tungsten Bar

YG6, YG8, YG6X
It can be used for processing hard wood, aluminum alloy profiles, brass rods, cast iron, etc.

YG10
It is used for processing hard wood, softwood, ferrous and non-ferrous metals.

UBT20
UBT20 tungsten carbide rods are applied sub-fine grain size and can be used for processing by medium speed, which can achieve good general performance. This grade is recommended to manufacture drill bits and end mills. They are suitable for cutting ordinary alloy steel, aluminum alloy, heat-resistant alloy, cast iron, etc.

UBT610
UBT610 tungsten carbide rods are applied ultra-fine grain size and have excellent heat resistance. UBT610 tungsten carbide rods are suitable for high-speed milling and drilling and to process alloy steel, heat-resistant alloy, cast iron, non-ferrous metals, stainless steel, and other material.

UBT25
UBT25 tungsten carbide rods are applied ultra-fine grain size and have good wear resistance and toughness. They are suitable for finishing and processing alloy steel, aluminum alloy, titanium alloy, and so on, and are suitable for making end mills, and reamer.

UBT508
UBT508 tungsten carbide rods are suitable for processing hardened hard steel, aluminum alloy, glass fiber reinforced materials, high wear-resistant material stainless steel, composite graphite, PCB, plastic, and so on.

UBT10
UBT10 tungsten carbide rods are applied ultra-fine grain size and have good wear resistance, so they are recommended to manufacture in end mills and engraving tools. They are suitable for processing aluminum magnesium alloy, composite sheet, PCB, plastic, glass fiber reinforced plastic, and so on.

UBT209
UBT209 tungsten carbide rods have high wear resistance and toughness, and are suitable for finishing hardened steel, plastic, glass fiber, stainless steel, and aluminum alloy. They are suitable for manufacturing 0.25mm end mills, drills, and boring tools.

Our Factory

Xi'an Zhanwo Metal Materials Co., Ltd. is located in High-tech Industrial Park, University City, Chang'an District, Xi'an City, Shaanxi Province, China. Our company mainly produces and sells rare and precious metal products, including nitinol, tantalum-niobium, tungsten-Nickel, zirconium-hafnium, and titanium products. Nitinol and tantalum-niobium products are the main products of our company. We have been focusing on the nitinol alloy industry and tantalum-niobium products for more than 13 years. Our company's product types include: wire, plate, pipe, rod, target, foil, screw, spring, nitinol jewelry and jewelry accessories, titanium products and titanium crafts, and various customized parts, etc. Relying on the resource advantages of China Titanium Valley and Baotai Group, our company has cooperated with the technical personnel of Northwest Nonferrous Metals Research Institute to train and gather a group of high-level, refined, and professionally skilled personnel for the company.

productcate-1-1

Certificate

Passed CE certification, IS09001 quality system certification, and obtained a number of patent certificates.

productcate-1-1

FAQ

Q: What is a Tungsten Bar or bar?

A: A Tungsten Bar or bar is a solid piece of tungsten metal that is typically cylindrical in shape. It is known for its exceptional strength, high melting point, and excellent electrical and thermal conductivity. Tungsten Bar and bars are used in a variety of industrial applications, including electronics, welding, and radiation shielding.

Q: What are the physical properties of tungsten?

A: Tungsten has the highest melting point (3422°C) of all metals, making it extremely resistant to heat. It also has the highest tensile strength of any pure metal at room temperature. Tungsten is hard and brittle, with a density similar to gold.

Q: What industries use Tungsten Bar and bars?

A: Tungsten Bar and bars are widely used in the electronics industry for components like cathode ray tubes, X-ray tubes, and electronic beam devices. They are also utilized in the manufacturing of welding electrodes, radiation shielding, and medical devices.

Q: What are the benefits of using Tungsten Bar and bars?

A: The high melting point and strength of tungsten make it ideal for applications that require resistance to extreme temperatures and wear. Its low coefficient of thermal expansion means that it maintains stability under thermal shock. Tungsten is also non-magnetic and has good corrosion resistance.

Q: How are Tungsten Bar and bars manufactured?

A: Tungsten Bar and bars are typically produced through a powder metallurgy process, which involves pressing tungsten powder into a mold and then sintering it at high temperatures to fuse the powder particles together. Advanced machining techniques are then used to shape and finish the rods and bars.

Q: What is the purity level of commercial Tungsten Bar and bars?

A: Commercial Tungsten Bar and bars are available in various purities, typically ranging from 99.5% to 99.999%. The specific purity required depends on the application and the desired properties of the tungsten.

Q: Can Tungsten Bar and bars be welded?

A: Tungsten is a difficult metal to weld due to its high melting point and brittleness. However, specialized welding processes such as tungsten inert gas (TIG) welding can be used to join Tungsten Bar and bars. These processes often involve the use of a non-consumable tungsten electrode to generate the weld.

Q: What are the common applications of Tungsten Bar and bars in electronics?

A: In electronics, Tungsten Bar and bars are commonly used as components in cathode ray tubes (CRTs), X-ray tubes, and electronic beam devices. They serve as targets for electron beams, which are used to generate images or perform material analysis.

Q: What is the difference between Tungsten Bar and tungsten bars?

A: The terms "Tungsten Bar" and "tungsten bars" are often used interchangeably, but they can refer to slightly different shapes or sizes of tungsten products. Generally, Tungsten Bar are longer and thinner than tungsten bars, which may be shorter and thicker. The specific terminology may vary depending on the manufacturer or application.

Q: How do you store Tungsten Bar and bars?

A: Tungsten Bar and bars should be stored in a dry, cool environment away from direct sunlight or heat sources. They should be protected from corrosion by storing them in a sealed container with desiccant if necessary. Proper storage ensures the longevity and performance of tungsten products.

Q: How do you cut or machine Tungsten Bar and bars?

A: Cutting or machining Tungsten Bar and bars requires specialized tools and techniques due to their hardness and brittleness. Diamond-coated saw blades or laser cutting machines are commonly used to cut tungsten. Machining operations may involve grinding, drilling, or milling, and should be performed by experienced operators using appropriate equipment.

Q: How do I choose the right Tungsten Bar or bar for my application?

A: When choosing a Tungsten Bar or bar, consider the required strength, melting point, density, and size. Also, think about the specific application and how the tungsten will interact with other materials. It's always best to consult with a supplier or manufacturer who can provide guidance based on your needs.

Q: What is the difference between Tungsten Bar and bars?

A: The main difference between Tungsten Bar and bars is their size and shape. Rods are typically long and cylindrical, while bars are shorter and may have a square or rectangular cross-section. The choice between rods and bars depends on the specific application and design requirements.

Q: What makes tungsten so strong and durable?

A: Tungsten has the highest melting point of all metals (about 3422 degrees Celsius), which makes it extremely resistant to heat. It also has a high density and tensile strength, which contributes to its durability.

Q: How do you machine Tungsten Bar and bars?

A: Machining tungsten can be challenging due to its hardness and high melting point. Special machining processes, such as diamond turning and electro-discharge machining (EDM), are often used to shape Tungsten Bar and bars without generating excessive heat.

Q: What factors determine the quality of a Tungsten Bar or bar?

A: Quality is determined by several factors including purity, grain size, density, and surface finish. A uniform grain structure ensures consistent performance, while a smooth surface minimizes the risk of contamination during processing or use.

Q: How is the purity of Tungsten Bar and bars measured?

A: Purity of Tungsten Bar and bars is typically measured in percentages. High-purity tungsten, often greater than 99.95%, is required for many applications due to its superior properties. Purity is determined through chemical analysis techniques such as spectroscopy and X-ray fluorescence (XRF).

Q: Can Tungsten Bar and bars be machined?

A: Machining tungsten can be challenging due to its hardness and brittleness. Specialized tools and techniques are required, and it is often necessary to use diamond-coated tools for cutting or grinding tungsten.

Q: What is the cost of Tungsten Bar and bars?

A: The cost of Tungsten Bar and bars varies depending on the size, shape, purity, and quantity purchased. Generally, tungsten is more expensive than other metals due to its unique properties and limited availability. However, the long-term durability and performance of tungsten often justify the higher initial cost.

Q: What are Tungsten Bar and bars made of?

A: Tungsten Bar and bars are primarily composed of tungsten, a chemical element known for its high density and melting point. Tungsten has the highest melting point of all metals, making it ideal for applications requiring extreme heat resistance.

We're professional tungsten bar manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to wholesale tungsten bar for sale here and get free sample from our factory. For price consultation, contact us.