Wire draw basically means that because steam is such a searching service, it will find its way between the base metal and the weld overlay, thus removing the weld overlay from the base metal.
From the question it is difficult to determine your exact problem, as I would associate wire draw and erosion as two different issues. I have worked for a reputable safety valve manufacturer for almost 20 years and I would never supply stellite weld overlay on valve seats for steam service. This...
