Welding

AEM-technology start welding Passive Core Flooding tank

Stainless Steel World Publisher - September 18, 2021

The Volgodonsk Branch of JSC "AEM-technology" (part of the machine-building division of the State Atomic Energy Corporation Rosatom - Atomenergomash) has started welding the vessels and bottoms of the Passive Core Flooding System tanks for power unit No.1 of the "Akkuyu" NPP (Turkey).

Rogue ES 180i PRO inverter wins 2021 Innovation Award

Stainless Steel World Publisher - September 18, 2021

ESAB announced that the Rogue ES 180i PRO Stick/TIG inverter has a 2021 Innovation Award from Professional Tool & Equipment News (PTEN) magazine for innovations that make vehicle diagnosis and repair easier and more efficient, as well as make shops more productive.

ESAB launches savage A40 PAPR technology

Stainless Steel World Publisher - September 11, 2021

ESAB Welding & Cutting Products has launched its new Savage A40 PAPR with Powered Air Purifying Respirator (PAPR) technology.

Novarc unveils SWR+HyperFill at FABTECH 2021

Stainless Steel World Publisher - September 10, 2021

Novarc Technologies announced that the company will be unveiling its new breakthrough technology, the Spool Welding Robot+HyperFill at FABTECH 2021 located in Chicago.

BCGA issue safety alert for acetylene regulator hazards

Stainless Steel World Publisher - September 5, 2021

The British Compressed Gases Association (BCGA) has issued a revision to Safety Alert 01 – The hazards of using incompatible regulatory with acetylene. Acetylene is sensitive to a range of materials including copper, silver, zinc, and mercury. In damp conditions, copper reacts with acetylene to form copper acetylide, an impact explosi

Joining Technologies expand services with spot welding

Stainless Steel World Publisher - August 29, 2021

Joining Technologies, an innovator in advanced electron beam and laser beam welding (LBW) applications, has incorporated resistance welding into the company’s scope of precision joining services.

Marlin Steel provides TIG and MIG cell for better welds

Stainless Steel World Publisher - August 27, 2021

Marlin Steel provides better welds thanks to the most sophisticated welding machine available. Its brand new Lincoln Robotic TIG (GTAW) and MIG (GMAW) welding cell provides optimum welds for its custom metal forms so its baskets and sheet metal racks are sturdier and longer-lasting.

Tetrix XQ delivers TIG welding at the highest level

Stainless Steel World Publisher - August 24, 2021

The new Tetrix XQ 230 from EWM delivers TIG welding at the highest level. The Tetrix XQ 230 is incredibly powerful and can be run directly from a single-phase 230 V power socket, which makes it very versatile in use.

Xiris’ XVC-1000 Weld Camera on Wall Panel Membranes

Stainless Steel World Publisher - August 21, 2021

Wall Panel Membranes are structures that form the basis of heat exchangers used in a variety of boilers to transfer heat in industrial processes such as petrochemical processes.

ESAB introduces Exaton 19.9.Nb HF

Stainless Steel World Publisher - August 6, 2021

ESAB has introduced Exaton 19.9.Nb HF, classified as an AWS A5.9: ER347 as well as an EN ISO 14343-A S 19 9 Nb, is a 300 series austenitic steel submerged arc welding wire.

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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.