For my Medieval Weapon Pack Vol.1 I needed a old and rough looking iron for the more bandit-style weapons.
The graph itself isn’t that complex. But the Substance self is highly configurable and optimized for use in Substance Painter.
The final result works quite well in different lighting scenarios and really gives that feeling of old rusted cast iron. In my weapon pack it is used for attachment and reinfocements on the more rough weapons. But it can also be used in for example a cast iron skillet or rusted iron fences.