Precious metals are in focus as uncertainty reigns in the market, but don’t think it means that all metal and mining stocks are a good investment. Many of these companies also deal with base metals like aluminum and copper — commodities in scarce demand as the global manufacturing sector continues to see headwinds.

I watch more than 5,000 publicly traded companies with my Portfolio Grader tool, ranking companies by a number of fundamental and quantitative measures. This week, I’ve got seven metal and mining stocks to sell.

Here they are, in alphabetical order. Each one of these stocks gets a “D” or “F” according to my research, meaning it is a “sell” or “strong sell.”

Agnico-Eagle Mines (NYSE:AEM) is a Canadian-based international gold producer. AEM stock has had a rough year, down 44% since the start of 2011.

Aluminum Corp. of China (NYSE:ACH) produces alumina, primary aluminum and aluminum fabrication in the People’s Republic. Like other metal and mining stocks, ACH has dropped big — 50% year-to-date.

ArcelorMittal (NYSE:MT) is a global steel producer that shipped approximately 85 million tons of steel in 2010. MT stock has been one of the biggest losers, down 60% year-to-date.

HudBay Minerals Inc. (NYSE:HBM) owns copper, zinc and gold mines, ore concentrators and zinc production facilities all across North America. A 50% loss year-to-date for HBM stock has shareholders questioning their initial investment.

Freeport-McMoran Copper & Gold (NYSE:FCX) is a mining company that works with copper, gold and other metals. Since the start of 2011, FCX stock has dipped 42%.

United States Steel (NYSE:X) is a producer of integrated steel products headquartered in Pittsburgh, Pa. Year-to-date, its stock has dropped 60% compared to a loss of just 1% for the Dow Jones.

Vale (NYSE:VALE) works with nickel, iron ore and iron ore pellets, manganese ore, ferroalloys, aluminum, fertilizers, copper and coal. VALE stock is down 34% year-to-date, compared to much smaller losses by the broader markets.

Get more analysis of these picks and other publicly traded stocks with Louis Navellier’s Portfolio Grader tool, a 100% free stock-rating tool that measures both quantitative buying pressure and eight fundamental factors.