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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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.

ESAB launches a global product website

ESAB announced the global launch of a new product website focused on user experience and fabricator education.

Kemppi launches X5 FastMig Pulse for industrial use

Kemppi launches the X5 FastMig Pulse welding equipment specifically designed for industrial use.

Lapham-Hickey acquires SMC Metal Fabricators

Lapham-Hickey Steel has acquired SMC Metal Fabricators, Oshkosh, Wis.

Venus receives BIS approval for its products

Venus Pipes & Tubes has become the first Indian company to receive Bureau of Indian Standards (BIS) approval

Miller, Hobart and Tregaskiss launch Hercules™ system

Miller Electric Mfg. LLC, Hobart Filler Metals and Tregaskiss have announced the release of the Hercules single-wire, high-deposition, automated MIG welding system.

CWC-S Cobot welding cell from Fronius for SMEs

Nowadays, reproducible welding quality and complete welding data documentation are the state of the art. But if welding takes place manually, these demands cannot...

Miller releases Millermatic® 355 MIG Welder

Miller Electric Mfg. released the new Millermatic 355 MIG welder, an easy-to-use power source designed for fabricators and manufacturers who need to MIG weld...

Packer as a contestant of SkillsUSA welding competition

In March, Jordan Packer, a Utah State University Eastern student, won second place in the American Welding Society Weld Trials after placing 11th in...

Stephen Cater present lectures at Coventry University

TWI’s Stephen Cater recently presented the latest in his series of lectures to over 80 Mechanical Engineering and Materials Science students at the University of Coventry.


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.