"So what?" Ray spat. "We’re done?"
He looked up at Ray. "The Welding Procedure Specification (WPS) for this material—SA-516 Grade 70—requires a preheat of 50 degrees Fahrenheit minimum when the ambient is this cold. It’s forty degrees out here right now, Ray." asme authorized inspector
Ray stepped onto the platform, wiping grease from his hands. "The paperwork is in the trailer. It’s all there. The welders are WPS-qualified. The materials are MTR-verified. Let's just get the water in it so my guys can go home." "So what