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Welding

Welding stainless steel

Welding is a fabrication process that joins materials, mostly metals, by using high heat to melt the parts together and allowing them to cool, causing fusion. It is a widely used technique in the fabrication of equipment such as tubes or heat exchangers.

Latest welding news

Below you can find the latest newsitems that involve the topic of welding.

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Kemppi launches AX MIG Welder

Kemppi AX MIG Welder a powerful robotic welder with seamless integration, an easy-to-use interface, and the latest welding technology. The AX MIG Welder was purpose-built...

Quality welding torches from Fronius

Fronius packs more than seventy years of welding know-how and extremely strict quality requirements into developing and manufacturing welding torches in-house.

Xiris unveils SeamMonitor system

Xiris Automation, a provider of innovative camera-based solutions for quality control in the metal fabrication industry, has announced the launch of SeamMonitor™, a camera-based...

Kemppi launches Master M 205 and Master M 323

Kemppi introduces new portable and versatile welding equipment for MIG/MAG welding: Master M 205 and Master M 323. The new welding equipment is perfectly...

Kemppi’s revenue grew by 9.7% in 2022

The Group revenue of Kemppi Oy grew by 9.7% compared to the previous year, totaling EUR 195.1 (177.9) million.

ESAB introduces cobot for MIG welding applications

ESAB has introduced its first cobot, or collaborative robot, for MIG and pulsed MIG welding applications on steel, stainless steel and aluminum alloys.

ESAB with Stanley Black & Decker® unveil RENEGADE VOLT™

ESAB unveiled its Renegade VOLT™ ES 200i Stick/TIG battery-powered welding system, which ESAB developed in conjunction with Stanley Black & Decker.

Cold wire TIG welding – smart and simple

TIG cold-wire components are available now for Fronius iWave. The pioneering innovation lies in its intelligent control.

TRUMPF unveils TruLaser Weld 1000

TRUMPF unveils TruLaser Weld 1000, an entry-level solution from TRUMPF which offers smaller companies the benefits of automated laser welding

EWM expands its welding series with Picomig family

The new welding machines from the Picomig family are robust, compact all-rounders that provide even more efficiency.


Stainless steel is a popular material in various industries due to its corrosion resistance, durability, and aesthetic appeal. Here are some key points to consider when welding stainless steel:

Choose the appropriate welding process: There are several welding processes suitable for stainless steel, including Tungsten Inert Gas (TIG) welding, Metal Inert Gas (MIG) welding, and Stick welding (Shielded Metal Arc Welding). TIG welding is often preferred for stainless steel due to its precision and ability to produce high-quality welds.

Prepare the materials: Before welding, it’s important to clean the stainless steel surfaces to remove any contaminants, such as oil, grease, or dirt. Use a stainless steel wire brush or a dedicated solvent to clean the area.

Select the appropriate filler material: When welding stainless steel, it’s generally recommended to use a filler metal that matches or is compatible with the base metal. Commonly used filler materials for stainless steel welding include austenitic stainless steel filler rods or wires, such as ER308, ER309, or ER316.

Set the welding parameters: The welding parameters, such as current, voltage, travel speed, and shielding gas flow rate, will depend on the thickness of the stainless steel and the specific welding process being used.

Ensure proper shielding gas: Stainless steel welding typically requires the use of an inert gas, such as argon or a mixture of argon and helium, to create a protective atmosphere around the weld and prevent oxidation. The shielding gas should be supplied continuously and cover the weld pool adequately.

Maintain good joint fit-up and control heat input: Stainless steel has a relatively low thermal conductivity compared to other metals, so it’s essential to control the heat input during welding. Proper joint fit-up, including gap and root opening, helps control distortion and ensures proper fusion.

Post-weld treatment: Stainless steel welds may require post-weld treatment to restore corrosion resistance. This can involve processes such as passivation or pickling, which remove any oxides or contaminants from the welded area. The specific post-weld treatment will depend on the application and the stainless steel grade used.

It’s important to note that welding stainless steel can be complex, and there may be additional considerations depending on the specific application, grade of stainless steel, and welding codes and standards. If you’re not experienced in welding stainless steel, it’s advisable to consult with a professional welder or seek training to ensure proper techniques and safety precautions are followed.