One can but guess, but since the aluminium on HMS Sheffield not only melted by also burnt (or should it be burned?), I can but presume that's what he was getting at. As for his subsequent posts, "IHNI", either !IHNI what he is implying.
As I hope you realise, I understood that.My point was that aluminium is not ferromagnetic.
Maybe an appropriate grade of stainless steel would satisfy both of your viewpoints?
Kind Regards. John
