Argon welding tanks are essential for any welding project requiring a stable and inert atmosphere. Argon is commonly used in welding because it is a non-reactive gas that does not oxidize the metal during welding. This article will discuss the types, sizes, and uses of argon welding tanks.

What is an Argon Welding Tank?

An argon welding tank is a high-pressure cylinder that contains compressed argon gas. These tanks are used in various welding applications to provide a stable, inert atmosphere around the weld pool. Argon welding tanks are commonly made from steel or aluminum and are available in multiple sizes.

Types of Argon Welding Tanks

Argon welding tanks are available in two main types: refillable and disposable.

Refillable Argon Tanks

Refillable argon tanks are designed to be refilled with argon gas when empty. These tanks are more cost-effective in the long run and are typically used by professional welders who do a lot of welding.

Disposable Argon Tanks

Disposable argon tanks are designed to be used once and then disposed of. These tanks are more expensive than refillable tanks but are a good option for occasional welders or those needing access to a refill station.

Sizes of Argon Welding Tanks

Argon welding tanks come in various sizes, and the tank size you need will depend on your welding project's requirements. The most common sizes of argon welding tanks are:

  • 20 cubic feet (CF)

  • 40 cubic feet (CF)

  • 80 cubic feet (CF)

  • 125 cubic feet (CF)

What Size Argon Tank for Welding?

Choosing the right size argon tank for welding is essential to ensure that you have enough gas to complete your project. The tank size you need will depend on the type and duration of your welding project.

A 20 CF or 40 CF argon tank is usually sufficient for light to medium welding projects. These tanks are also a good option for welders who need to move their equipment frequently, as they are relatively lightweight.

An 80 CF or 125 CF argon tank may be required for more substantial welding projects. These tanks are larger and heavier than the smaller ones but can provide enough gas to complete more significant projects without refilling.

What is Argon Used for in Welding?

Argon gas is used in welding for a variety of reasons. It is a non-reactive gas, meaning it does not react with the metal being welded, preventing oxidation and producing high-quality weld. Argon gas is also used to:

  • Shield the weld pool from atmospheric gases such as oxygen and nitrogen

  • Provide a stable and consistent arc during welding

  • Prevent contamination of the weld pool by foreign substances

  • Increase the speed and efficiency of the welding process

What is 75% Argon 25% CO2 Used for?

75% argon and 25% carbon dioxide (CO2) is a popular welding gas mixture. This mixture is used for welding carbon and low-alloy steels, as it provides a stable arc and good penetration. The CO2 in the mix also helps to increase the welding speed and reduce the spatter.

The Size of a 125 CF Argon Tank

A 125 CF argon tank is typically used for heavy-duty welding projects. This tank is approximately 56 inches tall and 9 inches in diameter and weighs around 165 pounds when full.

The Benefits of Using Argon in Welding

Argon gas is a popular choice in welding due to its many benefits. It is a non-reactive gas that does not react with the metal being welded, providing a stable and inert atmosphere around the weld pool. Here are some of the benefits of using argon in welding:

Prevents Oxidation

Argon gas helps prevent oxidation during the welding process, which can weaken the metal and result in a low-quality weld. It creates a stable atmosphere around the weld pool, shielding it from atmospheric gases such as oxygen and nitrogen.

Provides a Stable and Consistent Arc

Argon gas provides a stable and consistent arc during welding, crucial for achieving a high-quality weld. It helps maintain the arc's length and shape, allowing for greater control and precision in welding.

Prevents Contamination of the Weld Pool

Argon gas also helps prevent contamination of the weld pool by foreign substances such as moisture, dirt, and oil. This can significantly impact the quality of the weld, and argon gas ensures that the weld pool remains clean and impurities-free.

Increases Welding Speed and Efficiency

Argon gas can increase the welding speed and efficiency of the welding process. It helps to reduce spatter and increase the weld's travel speed, resulting in a faster and more efficient welding process.

Versatile Gas for a Wide Range of Welding Applications

Argon gas is versatile and can be used for a wide range of welding applications. It is commonly used in TIG (inert tungsten gas) welding, MIG (inert metal gas) welding, and plasma cutting.

Conclusion

Argon welding tanks are available in various sizes and types, and the tank size you need depends on the type and duration of your welding project. Refillable tanks are more cost-effective in the long run, while disposable tanks are a good option for occasional welders. Argon gas is commonly used in welding to prevent oxidation and contamination of the weld pool, among other benefits. 75% argon and 25% CO2 is a popular welding gas mixture for carbon and low-alloy steel. A 125 CF argon tank is used for heavy-duty welding projects. Choosing the right size argon tank for welding is essential to ensure that you have enough gas to complete your project.