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| 嘉兴Q345无缝方矩管材质分析比对 |  
| 来源:       时间:2012-11-10 |  
| Q345A:C≤0.20,Mn ≤1.70,Si≤0.50,P≤0.035,S≤0.035; 
  Q345B:C≤0.20,Mn ≤1.70,Si≤0.50,P≤0.035,S≤0.035; 
  Q345C:C≤0.20,Mn ≤1.70,Si≤0.50,P≤0.030,S≤0.030,Al≥0.015; 
  Q345D:C≤0.18,Mn ≤1.70,Si≤0.50,P≤0.030,S≤0.025,Al≥0.015; 
  Q345E:C≤0.18,Mn ≤1.70,Si≤0.50,P≤0.025,S≤0.020,Al≥0.015; 
   Q345A、B、C、D、E均含Nb≤0.07,V≤0.15,Ti≤0.20,Cr≤0.30,N≤0.012,Mo≤0.10。  |   浙江方矩管厂家 |    | 
               
             
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