特钢板块9月22日跌0.03%，西宁特钢领跌，主力资金净流出5132.74万元

Group 1 - The special steel sector experienced a slight decline of 0.03% on September 22, with Xining Special Steel leading the drop [1] - The Shanghai Composite Index closed at 3828.58, up 0.22%, while the Shenzhen Component Index closed at 13157.97, up 0.67% [1] - Individual stock performance in the special steel sector varied, with Changbao Co. rising by 1.45% and Jiu Li Special Materials falling by 0.36% [1] Group 2 - The net capital outflow from the special steel sector amounted to 51.33 million yuan, while retail investors saw a net inflow of 52.02 million yuan [3] - The table detailing capital flow for individual stocks in the special steel sector was provided, indicating varying levels of investment activity [3]