Marco shrugged. He’d done flat welds before. He struck an arc.
Later, the bracket held a heavy pump during a pressure test. No cracks, no leaks. horizontal position in welding
The lesson Marco never forgot: Welding on top of a horizontal pipe is horizontal position welding (per AWS: 2F for fillet, 2G for groove)—and it requires deliberate technique to manage gravity’s sideways pull. Ignore that, and your weld will sag, undercut, or fail when it matters most. Takeaway for your own work: When you see a horizontal joint (the weld’s length runs left-to-right), always remember—gravity is not your friend. Aim slightly upward, keep a tight arc, and watch the puddle’s lower edge like a hawk. That small adjustment separates a pretty weld from a safe weld. Marco shrugged
Here’s a useful story that illustrates the importance of the in welding, specifically for safety and quality. Title: The Pipe that Almost Rolled Later, the bracket held a heavy pump during a pressure test