Aybee seems to have the solution. Other things to consider are tab washers or tack welding of the nut and/or bolt. Remember to tack weld the washer also. This is used in GT exhaust cladding but some people do not like it as it creates a stress concentration in items that may be subject to...
why not consider something like Titan (316 Ti) instead of 316L.
It should be an improvement when any chlorides concentrate around welds.
Otherwise you may consider going higher up the nickel chain.
This problem is similar to the problem of HCl corrosion.
Our company uses this sort of insulation system a great deal, mainly in turbine exhaust systems but occasionally for diesels. A lot of operators see safety problems with a combination of oil firing and ceramic fibre internal insulation...
I would think the calculated concentration of HCl is irrelevent as the concentration will increase over time as you have downtime which allows vaporisation of the diluting medium (water).
You should either select suitable chloride resistant materials if the stack is unlined - anything from...
