Welding of stainless steel is a technically complex process, which should be carried out only by professionals with the necessary equipment and knowledge. The complexity of welding work lies in the special properties of the material. Stainless steel is not subject to corrosive changes due to the inclusion of chromium, nickel molybdenum and manganese. However, improving the physical and chemical properties of steel, these elements significantly reduce the thermal conductivity of the metal, making it unsuitable for welding.

Problems and solutions

There are always 3 key points to consider when welding stainless steel:

1. The metal being burned through is a result of the low thermal conductivity of stainless steel, so the amperage should be reduced by an average of 20%;
2. The finished part is deformed - the result of linear expansion, so always leave small gaps that compensate for the processes taking place;
3. Poor weld quality - avoiding electrodes made of high-alloyed alloys will help to avoid the problem.

Features of the technological process

The optimal way to join stainless steel parts is argon-arc welding. This technique is suitable for joining parts of small thickness, providing high reliability of the joint. Argon welding is even suitable for joining individual elements of pipelines operating under high pressure.

We do the work in two ways:

1. Electric arc welding of stainless steel with tungsten electrodes;
2. Welding of stainless steel semi-automatic in a gas environment using wire.

In both cases, the result is a quality joint and a reliable, clean seam.

Welding work

Metal welding technology allows you to correct damage, cracks and breaks that have appeared from prolonged or improper use of the product in production. In their work, specialists use various technologies, thanks to which the product will restore its former performance characteristics.

argon-arc welding

The technology is actively used for joining corrosion-resistant steel workpieces. Protection of the welding pool by argon inert gas flow reduces the formation of oxidation products and allows joining thin sheet parts. Non-melting tungsten electrode is used, for filling the seam - filler rod made of high-alloy stainless steel. This method allows to obtain strong welded joints that can be operated under high loads. For example, in pressure vessels, food and chemical industries.