This is a quick hot metal material I've made for one of my projects. I liked the look of it and thus I'm sharing.
Link to marketplace (free): https://www.artstation.com/marketplace/p/wb0wz/mikes-hot-metal-smart-material-for-substance-3d-painter-2022
Is it perfect? Most likelly not. Is it 100% realistic? I wouldn't think so. That's why I'm putting it up for free.
Does it look good? If implemented right it actually looks awesome.
Two wariants: Curvature based and Thickness Based.
Choosing and or/mixing those variants may result in even better effects.
A mask generated from curvature (or thickness in the second variant) can influence heat and heat distribution with the contrast and luminosity slider.
Requires an emission channel.