Created on 2025.12.17

Welding stainless steel

Welding stainless steel

Welding stainless steel is a technically complex process that should only be undertaken by professionals who have the necessary equipment and knowledge. The complexity of performing welding work lies in the special properties of the material. Stainless steel is not susceptible to corrosive changes due to the inclusion of chromium, nickel, molybdenum, and manganese in its composition. However, while improving the physicochemical properties of the steel, these elements significantly reduce the thermal conductivity of the metal, making it less suitable for welding.

Problems and Solutions

When welding stainless steel, three key points are always taken into account:

1.      The metal is being burned away – this is the result

low thermal conductivity of stainless steel, so the current must be reduced in

on average by 20%;

2.      The finished part is deformed – result

linear expansion, so there are always slight gaps left, which

compensate for the ongoing processes;

3.      Low quality of the weld seam – avoid

The problems will be helped by the abandonment of electrodes made from high-alloyed materials.

alloys.

Features of the technological process

The optimal way to connect stainless steel parts is argon arc welding. This method is suitable for joining thin parts, providing high reliability of the joint. Argon welding is also suitable for connecting individual elements of pipelines operating under high pressure.

We perform the work in two ways:

1.      Arc welding of stainless steel with electrodes

from tungsten;

2.      Welding stainless steel with a semi-automatic machine in

in a gas environment using wire.

In both cases, a quality connection and a reliable, clean seam are achieved.

Welding works

The metal welding technology allows for the repair of damages, cracks, and fractures that have occurred due to prolonged or improper use of the product in manufacturing. In their work, specialists use various technologies that enable the product to restore its previous operational characteristics.

Argon arc welding

The technology is actively used for connecting blanks made of corrosion-resistant steel. The protection of the welding pool by an inert argon gas flow reduces the formation of oxidation products and allows for the joining of thin sheet components. A non-melting tungsten electrode is used, and for filling the joint – a filler rod made of high-alloy stainless steel. This method allows for the production of strong welded joints that can be operated under high loads. For example, in pressure vessels, in the food and chemical industries.