The Industrial Credit can be used as a money representation in multiplayer servers that use Industrial Craft. It is a good way to represent what Iron (or Refined Iron) is worth on a multiplayer server. Industrial Credits can also be used with the Trade-O-Mat.
- Refined Iron is not worth making into industrial credits, because if you want them back you get less of the iron, unless they are being used for currency. To store Refined Iron in a compact form, use Machine Blocks