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.
If you wish to include your news release on our website and email newsletter, please feel free to contact the editor.
Stolt Offshore SA has won a contract from ExxonMobil’s Nigeria subsidiary for the flowlines and risers on the Erha field offshore Nigeria in a water depth of 1200 metres.
The general Manager of Padana Tubi SpA Inox Division (Guastalla, northern Italy), mr Simone Sartini, has announced that the company plans to
increase production by 40%, with annual turnover to reach USD 500 million by 2004.
Given the attention supermartensitic stainless steels have attracted in the past five years, it was not surprising that Supermartensitic Stainless Steels 2002, the second conference solely dedicated to supermartensitics, was well visited.
The American Welding Society (AWS) has just issued 13 revised Standard Welding Procedure Specifications (SWPS) for welding of 10 through 18 gauge galvanised steel, carbon steel and austenitic stainless steel sheet metal, in the as-welded condition, with or without backing.
Scottish company Forth Tool & Valve Ltd (FTV) has re-entered the weld cladding industry with the recent opening of Forth Welding & Cladding Services (FWC).
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.
X
You need to load content from reCAPTCHA to submit the form. Please note that doing so will share data with third-party providers.
You are currently viewing a placeholder content from Google Maps. To access the actual content, click the button below. Please note that doing so will share data with third-party providers.
