This pipe is 400 F \ 204 C inside. It is insulated with HOT PIPE COATING ®  which brought the surface temperature down to 100 F \ 38 C with a thickness of only 550 mils\ 1/2 " \ 14 mm DFT. HPC eliminates CUI (Corrosion Under Insulation) as it is totally bonded to the surface and the top coat seals out air and moisture.

This display was at the NACE Corrosion 2016 International Expo that was held in Vancouver recently.