ON THIS WIKI
The Silver Credit is one of the various tiers of Credits. It is added by GregTech and serves as the next denomination above the baseline Industrial Credit added by IndustrialCraft2. It is worth eight Industrial Credits. The Silver Credit has no use except as a currency for players on serves to trade with and is inadvisable to create in singleplayer. It can be used in crafting to convert between denominations of the Credit, but is not used in any crafting recipes not related to converting between tiers of Credits.
Silver Credits can be created either by converting downwards from the next tier up, a Gold Credit, or by converting upwards from the tier below it, the Industrial Credit.
Likewise, Silver Credits can be converted downwards into several Industrial Credits, or one can take eight Silver Credits and convert them into the next tier upwards, the Gold Credit.