Hi, thanks for replying on my project request. But my project is based on high temperature application with using 316L stainless steel (non corrosive sheet metal / No need of corrosion allowance) . Unfortunately the project design given here is based on low temperature with using of corrosive sheet metal (where a corrosion allowance is needed). Do you have any ability to help me with my particular calculations? I just need these calculations and not any other back ground details because I just have to print this project on 25 papers (A4)(including drawings and all that) so just precise calculations would be enough.