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MIG and TIG Welding: What’s the Difference?

MIG and TIG are two of the most used welding techniques, however, despite their similar names, they are not interchangeable. They each have several benefits and drawbacks, so you want to make sure you know about them in depth before deciding which will be the right fit for the project you have in mind.


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MIG Welding

Metal Inert Gas welding combines two pieces of metal together with a consumable wire connected to an electrode current. This wire passes through the welding gun at the exact same time as the inert gas, which in turn protects the electrode from contaminants.

As a result of this process, the welding wire is continuously burning, melting and fusing both the base and parent metals together. Because of this, MIG Welding is a very fast way of putting down welds.


MIG welding can be used with a wide range of materials, from mild steel to stainless steel and aluminium.  No matter the thickness or thinness of the material, this welding technique will always achieve the highest standards in products such as heavy structural plates and metal sheets.

Because the speed and pressure can be easily regulated in a MIG welder, this is an ideal technique for those who want to get into welding as a hobby.

TIG Welding

Tungsten Inner Gas welding combines non-consumable tungsten with inert gas to weld two work pieces together. However, one very specific thing about this welding process is that tungsten electrodes provide the electricity but not the filler. In some cases, the filler can be easily added, but most of the times one part melts into the other. This is also a semi-automatic process, as most of the times a pedal is used to control the arc.

TIG welding is a slower technique when compared to MIG welding although, on the other hand, is much more versatile as it can be used to weld a wider range of materials.


TIG welding is ideal for very thin materials such as kitchen sinks and tool boxes. Because with this welding technique you can have the power down really low so it doesn’t blow through the metal, it is ideal for those projects which require a delicate welding technique.

TIG welding is mostly used in situations of non-ferrous metal joining and also for iron alloys. Besides, tungsten electrodes reduce a great deal of the contamination associated with the welding process. This translates into the decrease of production of fumes and sparks that, potentially, make the welding a less clean process.

On the other hand, this is a process that requires as much precision as possible, so it is not advisable for someone who is just starting welding as a hobby.


2L Adam Gas
Here at Adams Gas we are the best UK gas supplier, offering MIG and TIG welding gas for both industrial and hobby use. One of the main advantages we offer is the choice of size available. You can purchase a 50L industrial argon gas cylinder that will supply all the needs of your industrial company for at least three months. But if you just want the gas cylinder to satisfy your very own welding passion, then a 2L cylinder of argon gas will be perfect to carry it around and store it. Feel free to contact our friendly team with any enquiry and we will be delighted to help!