Credit Suisse thinks that U.S. steel sector valuations are already pricing in "fiscal cliff" uncertainty, and thinks there's a trading opportunity in the sector over the next 3-6 months as demand and pricing improve. The firm reiterates an Outperform on: Reliance Steel (RS +3%), Metals USA (MUSA +0.5%), Nucor (NUE +2.6%), and AK Steel (AKS +2.8%).