NEW DELHI: Metal stocks were trading with gains in Tuesday session, keeping their sectoral index on NSE in the positive zone. The Nifty Metal index was trading 0.52 per cent up at 3044.15 around 10:40 am.& Shares of Welspun CorpNSE 2.50 % (up 2.37 per cent), Steel Authority of India (SAIL) (up 2.06 per cent), Jindal Stainless (Hisar) (up 1.72 per cent) and Jindal Steel & Power (up 1.59 per cent) were the top performers in the index. Hindalco Industries (up 1.50 per cent), National Aluminium Company (up 1.47 per cent), Coal IndiaNSE 0.74 % (up 0.70 per cent) and Tata Steel (up 0.50 per cent) too were trading with gains. Benchmark NSE Nifty50 index was up 11.05 points at 11,473.25 while the BSE Sensex was up 57.37 points at 38,152.44. Among the 50 stocks in the Nifty index, 35 were trading in the green, while 15 were in the red.