310SS Tube Supports in Heaters
310SS Tube Supports in Heaters
(OP)
We plan to replace some tubesheets in the convection section (1400°F to 1500°F) of a Reformer Unit heater with stainless steel. Someone mentioned that it is standard to use 310SS for these applications. The ASME Section II-D book indicates that 304SS plate has a higher allowable stress than 310SS plate. Is there another reason why 310SS is used more often? Our flue gas has trace amounts of sulfer, but that shouldn't effect 310SS any more than 304SS (PASCC), right?





RE: 310SS Tube Supports in Heaters
RE: 310SS Tube Supports in Heaters
Is you are concerned of high temperature sulphidation check out the Haynes alloys on site Haynes International for their literature on HR-160 and alloy 556, otherwise ASM Handbook Vol.13 on corrosion is an excellent source to research your concerns.
RE: 310SS Tube Supports in Heaters