Hi, sounds like a good variety of maps coming out of Substance. Not all of them have a direct twin in Curvy.
You might try mapping "Metallic" to "Specular/Highlight", and "Roughness" to "Bumpmap" (with a decreased intensity).
"Height" can map either to "CurvyMap", to actually displace the surface, or "BumpMap" to render the surface as if it was displaced (better for small details)
If you want to make a metal object make sure to set the Highlight Lightmap to be a shiny metallic ball, so it will render like a reflection map.
"Normal" doesn't have a slot in Curvy, it's function is similar to "Bumpmap" but a Normal map won't work in a bumpmap slot.
Finally - Curvy is best for modelling, if you want to use cool material types from Substance it is probably best to Model in Curvy and then do your rendering in Substance or other renderers that support the full range of material settings.