What is the maximum permissible surface temperature for a self service water boiler intended for customer use in shops? The lid is stainless steel and gets to about 60C.
It will only be sold/used within the EU and is to be CE marked.
I am trying to source submersible elements for catering water boilers. I wanted incoloy 800 but am finding difficulty in getting them at a good price. I have been offered incoloy 840 or 316s/s. All I can find about 840 is that it is an incoloy alloy suited to welding so has it poorer properties...
