There are typically supply tubes 4-5inch in diameter that are external of the boiler walls. They will come off the lower mud drum and these are the ones that are most susseptale to corosion fatigue and rupture rather then leak before break. The reason is they are thick wall and can have some...
My major concern is the level of trace elements that are found in the pipe and tubung produced in the Chineese mills. All mills use scrap steel for their products, but the chineese are using signifigasnt amounts and there currently is not been limits placed on trace elements from the mells.
A...
Salem Harbor failure sounds like a potential corrosion fatigue of a boiler external supply tube or riser. I have seen failures like that and normally they are un detected until failure. The best detection is eather internal boroscope or digital xray looking for ID initiated pitting forming a...
