Iman Mahmoudi’s Post

Mainly we carry out boiler repairs on our customers sites, but this one needs a bit more work. Image shows the 2nd tube bank being removed. Once the tubes are out the boiler will be shotblasted and NDT inspected before we get a full extent of all the repairs needed. If the shell is good then it will be full steam ahead on the repair program. #industrialboilers #siterepair #SteamBoiler #SteamBoilers #documenation #certification #qualityproducts #skilledtrades #codedwelding #fabrication #pipefitting #stainlesssteel #UKManufacturing #hiengineering #handiengineering

The minimum distance between welds depends on the applicable code and standard being used. Here are some guidelines from a few commonly used codes and standards: American Welding Society (AWS) D1.1: The minimum distance between welds should be at least four times the thickness of the thinner part joined, but not less than 1 inch (25 mm). American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code (BPVC) Section VIII, Division 1: The minimum distance between welds should be at least three times the thickness of the thinner part joined, but not less than 1 inch (25 mm). European Welding Federation (EWF) and International Institute of Welding (IIW): The minimum distance between welds should be at least three times the thickness of the thinner part joined, but not less than 2 mm. It is important to note that these guidelines are not exhaustive and other codes and standards may have different requirements. Additionally, the actual minimum distance between welds may depend on other factors such as the specific materials being used, the intended application, and the welding method employed. It is important to consult the applicable code or standard and/or a qualified welding engineer for specific guidance on minimum distance between welds for a given application.

After a product is welded, how will we determine whether the welding quality meets the requirements? ❓ *#visualinspection : to check if the welding looks good and functional after assembly. It is mainly used for products with conventional welding requirements. *#leakagetest: to place the welded product in a test container to observe whether the air tightness is good. It is mainly used for boxes or tanks that store gas or liquid. *#magneticparticleinspection : to reveal surface and near-surface crack defects of materials through advanced instruments accurately. It is mainly used for various types of pressure-bearing equipment and pipeline welding products. After completing the welding process, we will verify the quality and weld integrity of each product through rigorous testing based on the customer's requirements or product usage functions. Look forward to discussing and sharing more tests to verify product quality with you. If you are interested in it, please leave a message in the comment section to let me know. 😀 #visualinspection #weldinginspection #leakagetest #magneticparticleinspection

🚀 Mastering Materials and Welding Specifications 🛠️ Just finished reviewing an in-depth Materials and Welding Specifications document, which highlights key parameters essential for ensuring quality and performance in diverse applications. This reference covers critical areas including: 1️⃣ Material Grades and Mechanical Properties: From Carbon Steel (ASTM A106) to Stainless Steels (TP-304, TP-316) and Low Alloy Steels (LAS), this document dives into each material’s yield strength (YS), ultimate tensile strength (UTS), and elongation requirements. 2️⃣ Welding and Heat Treatment: Detailed guidelines on GTAW and SMAW processes, including preheat, interpass, and post-weld heat treatment (PWHT) requirements to prevent issues such as hydrogen embrittlement and enhance weld quality. 3️⃣ Non-Destructive Testing (NDT): Specifies inspection protocols—such as RT, UT, and MPT—as per ASME standards, ensuring robust quality checks in critical areas. 4️⃣ Service Conditions: Customized specs for materials used in Sour, Amine, and Caustic environments, ensuring safety and durability under harsh conditions. 📌 Key Takeaways: • Always match material selection with service conditions. • Follow precise heat treatment protocols to maintain mechanical integrity. • Rely on standardized NDT practices to validate quality. #MaterialsEngineering #WeldingSpecifications #IndustrialStandards #QualityAssurance #EngineeringExcellence #ASMEStandards

Dealing with weld defects? Voltage drop might be the culprit. Discover how to tackle and prevent this challenge with valuable insights from Ethan Rosler, a weld engineer at Miller. Get tips on cable length and maintenance to optimize your welding process.  . . #MIGwelding #WeldingTips #VoltageDrop #WeldDefects #WeldingCables #MillerWelding #VanguardVision

5G Welding Position: The 5G pipe welding position is used when the pipe's axis is stable horizontally and cannot be turned or rotated. Two methods exist to complete these welds: 5G uphill and 5G downhill. In the former, welders start from the overhead position, go to the horizontal, and finally to the flat position. In contrast, with the downhill position, welders start from the flat position, progress to the horizontal position, and end with the overhead position. 6G Welding Position: One of the most challenging welding positions, 6G is similar to 5G, but the pipe is positioned at 45° to the other. The 6G position requires three welds: horizontal, flat, and vertical. The difficulty comes from filling metal flowing downward and the fact that in the vertical position, it is overhead welding. The 6G weld position is primarily used for fabricating and installing pipes and pipelines in oil and gas plants, industrial plants, and any industry using pipes and pipelines. What do you think? Is it uphill or downhill? 5G or 6G? #welding #pipewelding #aviation #airports #jeta1 #jetfuel #worksafely #weldingequipment #weldingtechnology #weldingmachines

GMAW: Your Gateway to the World of Welding Want to learn a welding process that's both user-friendly AND incredibly versatile? Gas Metal Arc Welding (GMAW), also known as MIG welding, is a great place to start! Here's why GMAW is so popular: 1. Beginner-friendly: It's known for being relatively easy to learn, making it an ideal entry point into the welding profession. 2. Versatile: GMAW can be used on a wide range of metals (steel, aluminum, stainless steel) and for various applications, from automotive to construction to manufacturing. 3. Efficient: The continuous wire feed allows for faster welding speeds compared to some other processes. How GMAW Works: GMAW uses a solid-wire electrode that is continuously fed through a welding gun. An electric arc is formed between the electrode and the workpiece, melting the metal and creating the weld. A shielding gas protects the weld pool from atmospheric contamination. Want to learn more about GMAW and other welding processes? Join Eastlands College of Technology Welding & Fabrication program! Apply now: https://bit.ly/3GVdyby #ECTKenya #JihamiNaSkill #Welding #Fabrication #GMAW #MIGWelding

Which of the welding process After the weld is completed normally required a post weld heat treatment to restore toughness values? A. ESW B .MMA C. MAG D. All completed weld required PWHT.

Q16. What is the primary purpose that distinguishes Post-Weld Heat Treatment (PWHT) from post-heat in welding? (www.weldingandndt.com) 1. Improving visual appearance 2. Controlling cooling rates during welding 3. Relieving residual stresses and enhancing mechanical properties 4. Minimizing the risk of thermal distortion (For answer, please read: https://lnkd.in/gFu66W88)

Did you know? Pre-heating is vital in welding processes, ensuring sufficient penetration of added weld layers onto the base material. Crucial for various welding methods, pre-heating also prevents post-weld cracks arising from material differences, ensuring the integrity of welded joints. #welding #partmanufacturing #steamturbine #gasturbine #powerplant #powergeneration