Corrosion of stainless steel valve
Thursday, March 20th, 2008
Corrosion of stainless steel valve stems by packings. Stainless steel
valve stems—in particular those made of AISI type 410 (13Cr) steel—
corrode frequently where the face contacts the packing. The corrosion
occurs usually during storage preceding service, when the packing is saturated
with water from the hydrostatic test.
If the valve is placed into service immediately after the hydrostatic
test, no […]

