球墨鑄鐵化學(xué)成分:
    
      
    
    
      
    
    
      
     
球墨鑄鐵的化學(xué)成分(供參考)
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           牌號及種類  | 
        
           
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           化 學(xué) 成 分(質(zhì) 量 分 數(shù) %)  | 
        
           
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           C  | 
        
           Si  | 
        
           Mn  | 
        
           P  | 
        
           S  | 
        
           Mg  | 
        
           RE  | 
        
           Cu  | 
        
           Mo  | 
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           QT900-2  | 
        
           孕育前  | 
        
           3.5-3.7  | 
        
           
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           ≤0.50  | 
        
           ≤0.08≤0.025  | 
        
           
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           孕育后  | 
        
           
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           2.7-3.0  | 
        
           
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           0.03-0.05  | 
        
           0.025-0.045  | 
        
           0.5-0.7  | 
        
           0.15-0.25  | 
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           QT800-2  | 
        
           孕育前  | 
        
           3.7-4.0  | 
        
           
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           ≤0.50  | 
        
           ≤0.07 ≤0.03  | 
        
           
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           孕育后  | 
        
           
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           2.5  | 
        
           
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           0.82  | 
        
           0.39  | 
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           QT700-2  | 
        
           孕育前  | 
        
           3.7-4.0  | 
        
           
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           0.5-0.8  | 
        
           ≤0.08 ≤0.02  | 
        
           
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           孕育后  | 
        
           
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           2.3-2.6  | 
        
           
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           0.035-0.0650.035-0.065  | 
        
           0.40-0.80  | 
        
           0.15-0.40  | 
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           QT600-3  | 
        
           孕育前  | 
        
           3.6-3.8  | 
        
           
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           0.5-0.7  | 
        
           ≤0.08≤0.025  | 
        
           
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           孕育后  | 
        
           
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           2.0-2.4  | 
        
           
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           0.035-0.05 0.025-0.045  | 
        
           0.50-0.75  | 
        
           
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           QT500-7  | 
        
           孕育前  | 
        
           3.6-3.8  | 
        
           
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           ≤0.60  | 
        
           ≤0.08≤0.025  | 
        
           
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           孕育后  | 
        
           
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           2.5-2.9  | 
        
           
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           0.03-0.05 0.03-0.05  | 
        
           
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           QT450-10  | 
        
           孕育前  | 
        
           3.4-3.9  | 
        
           
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           ≤0.50  | 
        
           ≤0.07 ≤0.03  | 
        
           
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           孕育后  | 
        
           
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           2.2-2.8  | 
        
           
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           0.03-0.06 0.02-0.04  | 
        
           
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           QT400-15  | 
        
           孕育前  | 
        
           3.5-3.9  | 
        
           
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           ≤0.50  | 
        
           ≤0.07 ≤0.02  | 
        
           
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           孕育后  | 
        
           
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           2.5-2.9  | 
        
           
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           0.04-0.06 0.03-0.05  | 
        
           
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           QT400-18  | 
        
           孕育前  | 
        
           3.6-3.9  | 
        
           
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           ≤0.50  | 
        
           ≤0.08≤0.025  | 
        
           
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           孕育后  | 
        
           3.6-3.9  | 
        
           2.2-2.8  | 
        
           
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           0.04-0.06  | 
        
           0.03-0.05  | 
        
           
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