Tabelle di spessori, correnti e diametri di elettrodi in tungsteno scelti per la saldatura TIG - Tecnista

Among the questions most often we feel there are: "What amperage do I have to set for the thickness that I will have to weld in tig?" or "How to choose the tungsten electrode diameter should I use?"

Without losing time in unnecessary introduction to everything concerning TIG welding etc. etc., let's go immediately to the practice.

The distinction to be done is if we are welding in direct current (DC) or alternating (AC)

Continuous current (DC)

Use on: common carbon steel (commonly called "iron"), stainless steel, copper and its alloys, silver, titanium and its alloys.

Piece thickness (mm) Current (a) Typical applications
0,4 5-15 Kitchen accessories
0,6 10-30 Filters in perforated sheet metal
0,8 20-40 Small thick pipes
1,0 30-60 Small tanks, carter, gutters
1,5 40-80 Food industry
2,0 70-100 Chemical industry
3,0 80-120 Medium sized tanks
4,0 100-150 Pressure containers, first passed straight flap tubes
5,0 150-260 Metal carpentry
beyond 250-300 Railway carriages, naval components


The following is the table indicating the diameter of the tungsten electrode to be used depending on the current choice:

Electrode diameter (mm) Direct current (a)
1,0 10-75
1,6 40-120
2,0 100-200
2,4 170-250
3,2 225-330
4,0 300-480

 

AC current (AC)

Use: aluminum and its leagues, magnesium, brass and fusion bronzes

Piece thickness (mm) Current (a) Typical applications
1,0 15-35 Naval constructions
1,5 30-60 Car bodywork
2,0 40-70 Railing railways
3,0 60-100 Silos
4,0 90-130 Tanks
5,0 120-170 Aeronautical sector
beyond over 170 Military applications


The following is the table indicating the diameter of the tungsten electrode to be used depending on the current choice:

Electrode diameter (mm) Alternating current (a)
1,0 20-30
1,6 30-60
2,0 40-80
2,4 60-100
3,2 90-150
4,0 150-200

 

If instead I need advice on which tungsten electrode color, choose, we recommend reading the article that you will find this link

If you are looking for help contact us!

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Amperes tigCome scegliere ampere tigCome scegliere diametro tungsteno

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