Michael Ostaffe

Q: What role does flux and wire play in submerged arc welding? A: It is important to choose the right flux and wire combination for submerged arc welding (SAW) processes. This will allow you to gain efficiency while meeting your performance requirements. Basic submerged arc welding uses a single...

Q: One of my vendors recently approached me about replacing the solid wire in my submerged arc welding (SAW) application with a metal-cored wire. Should I consider making the change? A: Depending on your application, you should certainly consider making the change. Metal-cored wires can provide...

Q: We manufacturer dual submerged arc welded (DSAW) pipe for API use. Some jobs require that the weld hardness be below 250 Vickers. We are having trouble meeting that requirement. What can we do? A: Weld hardness restrictions generally are found in pipelines designated for sour service and are...

Q: What should we look for when choosing a filler metal supplier for critical welds, such as those in the power generation industry? A: For critical applications, you need to find a supplier with a long track record in understanding the needs, developing products, and creating solutions for that...

Q: I am confused about the various specifications for seismic applications. How can I know if I have the right filler metal for the job?A: Your confusion is understandable. The documents overseeing seismic applications are ongoing and constantly revised. To fully understand this issue, we need to...