What Kind of Gas to Use to TIG Weld: Our Recommendations

What Kind of Gas to Use to TIG Weld

This blog post discusses the different types of gas available for TIG welding and what kind of gas to use to tig weld. 

While most people might be aware that you can use CO2 and argon for TIG welding, there are others like helium, oxygen, or propane that might have more specific uses. 

This blog article provide you a more in-depth look at how to weld and the technologies behind it.

Welding Gas Types to Use to TIG Weld

There are many types of welding gases to choose from when tig welding. Some of the most common gases are argon, CO2, helium, and CO. When choosing a welding gas, it is important to consider the type of weld you will be making and the material you will be welding. 

Here are some tips for choosing the right gas for your welding project:


Argon is a common choice for metal welds because it has a low heat output and is inert. It is also used in gas-fired welders because it does not produce toxic byproducts.


CO2 is a popular welding gas because it has a high heat output and is non-toxic. It is also Recommended for use with carbon steel because it helps to create a strong weld. It can also be used on other metals, but care must be taken to avoid embrittlement or warping of the metal.


Helium is a much more expensive option than argon, but it offers several benefits. For one, helium is very effective at creating sparks. This means that it can be used to weld thicker metal pieces without causing them to deform.

Additionally, helium is lightweight and does not produce as much heat as argon. This makes it good for welding delicate parts that might be damaged by excessive heat.

Carbon Dioxide

Carbon dioxide is a relatively new option that has gained popularity in recent years because of its many benefits. For one, carbon dioxide produces very little heat, which makes it ideal for welding thin metal pieces.

Shielding Gas Recommendations for MIG and TIG Welding

TIG welding is a popular type of welding that uses a gas mixture to create the arc. There are many different types of gases that can be used for TIG welding, but each has its own advantages and disadvantages.

Because TIG welders are very sensitive to the gas they use, it is important to select the right gas for the job.

Shielding Gas Recommendations for MIG and TIG Welding

Here are some factors to consider when choosing a gas for TIG welding:

  • The thickness of the metal being welded. Thicker metals require a higher gas concentration than thinner metals, and this affects both the heat applied to the metal and the arc intensity.
  • The type of welding being done. Gas types such as CO2 and argon are best for cold Welding (below 400 degrees Fahrenheit), while hydrogen is the best gas for hot Welding (above 400 degrees Fahrenheit).
  • The environment in which the weld will be used. Gases with high concentrations of oxygen, like Argon, are better suited for outdoor use because they do not produce poisonous byproducts like hydrogen sulfide.

What Gas Should You Use for TIG Welding

If you’re welding with a gas tungsten arc welder, it’s important to choose the right type of gas. The most common types of welding gases are helium and argon.

Helium is the most commonly used welding gas because it’s non-toxic, has a high heat capacity, and is cheap. It doesn’t create as much heat as argon, so it’s sometimes used for small welds or joint repairs. 

Argon is more expensive than helium, but it has a very high heat capacity and is therefore ideal for welding large pieces of metal.

Gases Used in TIG Welding

TIG welding is used in many industrial processes such as the production of carbon fibre, metal alloys and stainless steel. The gases used in TIG welding are predominately between 2 to 5% argon and heptane (H2CH3)

However, one of the most common welding gases used in TIG Welding is argon. And, the Argon is inert and doesn’t react with other materials, making it a good choice for many welding applications. Argon is also non-toxic, which makes it a safe option for use around people and other objects. Other commonly used welding gases include CO2, MAPP gas, and hydrogen.

Semi-Inert Gases

Semi-insert gases, also known as transition gases, are used in TIG welding to help control the arc and prevent spattering. This gases is a type of inert gas that helps prevent weld defects by breaking down the plasma. Inert gas welding is typically done with argon or helium, but other semi-insert gases can be used depending on the application.

Helium: Helium is by far the most inert of the semi-inert gases, which means it has low reactivity and doesn’t cause any sparks when it meets metal. This makes helium an ideal gas for use with tungsten electrodes because it doesn’t create any hot spots where sparks can start fires.

CO2 or Carbon Dioxide: Carbon dioxide is natural gas, and it is used in many welding applications because it is a safe, inert gas that does not contain any harmful elements. Helium is also natural gas, but it is slightly more expensive than carbon dioxide. Nevertheless, helium is a good choice for TIG welding because it does not form oxides when it welds metals together.

Nitrogen: The use of nitrogen in welding has many benefits over other gases, including a reduced propensity for spattering and less contamination. This makes it ideal for more delicate work, such as near surfaces or when using smaller electrodes.

Why Semi-Insert Gases are Popular

The use of semi-inert gases in TIG welding has become increasingly popular in recent years due to their many benefits. These gases are by definition less reactive than standard TIG welding gases and, as a result, they help to produce a smoother weld. 

Semi-inert gases also allows for a reduced arc width, meaning that more parts can be welded at the same time without causing damage.

One of the main reasons why semi-inert gases are so popular is their ability to improve weld quality. This is because they reduce the amount of heat that is produced during the welding process, which in turn reduces the chances of impurities seeping into the weld area and causing problems.

Furthermore, semi-inert gas Welding allows for more accurate positioning of the workpiece and produces stronger connections than traditional TIG welding methods.

Advantages & Disadvantages of TIG Welding

Tig welding is a type of welding that uses a long, thin electrode to weld two pieces of metal together. The process is usually done using an arc welder, but there are also tig welders that use a spool gun.

The main advantage of tig welding is that it is a very fast process. Tig welding can be done at very high temperatures, which makes it ideal for repairing or replacing parts on vehicles.

Another advantage of welding is that it doesn’t require a lot of skill. Even someone who is new to welding can usually get started with tig welding.

Categories of Gases and Their Uses in Welding

The categories of gases used in welding are noble gas, argon, helium, neon, krypton, xenon, and carbon dioxide. They are used for different reasons such as shielding the weld joint from the atmosphere or depositing heat on the weld. 

Helium is a noble gas and is used because it does not react with other metals. While Argon is also a noble gas and is used because it displaces oxygen in the atmosphere.

However, Neon and krypton are both inert gases and are used to fill up any gaps in the shielding gas mixture. Xenon is a radioactive gas that emits light when it reacts with other materials. 

Carbon dioxide is commonly used as a filler gas because it doesn’t react with other elements or substances.

Why Do We Use Gas in Welding?

Welding is a process that joins metals using heat and welding metal. The most common type of welding is arc welding, in which a welder uses an electric arc to create a joint. Arc welding is the most common type of welding because it’s fast and efficient, but it has some drawbacks. 

One drawback is that arc welding causes heat distortion, which can cause problems with the seam strength and integrity. Gas welding also has some drawbacks, but they’re less significant than those arc welding. 

One reason gas welding is less popular than arc Welding is that gas produces less heat distortion than an electric arc. Gas also has other advantages over arc Welding, such as its ability to work in more difficult positions and its resistance to corrosion.

What Kind of Gas do you use to TIG Weld Aluminum?

Tig welding aluminum with a co2-based gas is typically the most efficient and produces the best welds. However, using a co2-based gas can be dangerous if it’s not properly regulated; make sure you use an appropriate mask and protective gear when using this type of gas. 

Aso, argon-based gases are also suitable for tig welding aluminum, but they may require slightly higher wire feed rates in order to produce acceptable welds.

These two have to use the tig weld aluminum are the most common types of gasses!


It is important to select the right gas for your TIG welding project. Popular choices include argon, helium, and CO2. Carefully read the specifications of each gas to ensure compatibility with the material you are welding. Be sure to use shielding gas if necessary to protect the weld area from contaminants.

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