Steel pipe welding. Gas, MIG and TIG – what are they really different about?

Combining elements cannot always be used, therefore in many cases steel pipe welding is necessary. The most popular types are gas welding and TIG and MIG/MAG methods. But what are the differences, and when should they be applied? We're already responding.

In the article

When's the gas welding?

This is by far one of the oldest welding methods currently used in non-alloy steel, brass and copper pipes. What is it? At the melting of the edges of the combined metals with the hot flame of the burning gas in the atmosphere of the oxygen supplied. acetylene is usually used.

In addition, welding can be distinguished by sinking the edge of the welded material. This happens when the welding process is carried out without the addition of a binder. Importantly, gas welding allows welding of aluminum components, but the quality of the connection is unfortunately not measurable. What are the faults of gas welding? First of all:

very high welding skills required,
low weld quality,
relatively low welding efficiency.

The TIG method ensures high quality

The TIG method is based on a combination of physical continuity by oversinking the edge of the base material by means of the heat of the electric arc simmering between the non-tipped tungsten electrode and the base material. The process itself must take place only with a natural gas shield, whether Ar, He or Ar+He.

The TIG method is so popular as it ensures high-quality welding of all used metal materials. Thanks to this, it can be placed on both aluminium alloys, high-alloy steels, non-alloy steels, brass or copper. The only drawback, of course in quotes, is that high skills and experience of a welder are required for this type of work – the expert tells us SANDC, Steel and Constructions Steel Pipe Welding.

And the MIG/MAG method?

The MIG/MAG method differs from the TIG method from the fact that the very melting of the edge of the base material by means of the heat of the electric arc glowing between the base material and the melting electrode wire is continuously administered to the welding area.

The MIG/MAG method is suitable for welding steel and non-ferrous metals. Her basic advantages? Certainly high performance (in a minute you can perform as much as 30 cm of weld) and the fact that the final quality is not as dependent on the welding skills as with the TIG method.

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