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				| 
 公稱口徑  | 
 外徑  | 
 壁厚  | 
 鍍鋅管壁黑鐵管 增加的重量系數(shù)  | |
| 
 MM  | 
 MM  | 
 MM  | 
 普通鋼管  | 
 加厚鋼管  | 
| 
 6  | 
 10.0  | 
 2  | 
 1.064  | 
 1.059  | 
| 
 8  | 
 13.5  | 
 2.75  | 
 1.056  | 
 1.046  | 
| 
 10  | 
 17.0  | 
 3.50  | 
 1.056  | 
 1.046  | 
| 
 15  | 
 21.3  | 
 3.15  | 
 1.047  | 
 1.039  | 
| 
 20  | 
 26.8  | 
 3.40  | 
 1.046  | 
 1.039  | 
| 
 25  | 
 33.5  | 
 4.25  | 
 1.039  | 
 1.032  | 
| 
 32  | 
 42.3  | 
 5.15  | 
 1.039  | 
 1.032  | 
| 
 40  | 
 48.0  | 
 4.00  | 
 1.036  | 
 1.030  | 
| 
 50  | 
 60.0  | 
 5.00  | 
 1.036  | 
 1.028  | 
| 
 65  | 
 75.5  | 
 5.25  | 
 1.034  | 
 1.028  | 
| 
 80  | 
 88.5  | 
 4.25  | 
 1.032  | 
 1.027  | 
| 
 100  | 
 114.0  | 
 7.00  | 
 1.032  | 
 1.026  | 
| 
 125  | 
 140.0  | 
 7.50  | 
 1.028  | 
 1.023  | 
| 
 150  | 
 165.0  | 
 7.50  | 
 1.028  | 
 1.023  | 
| 
 說明  | 
 W=C*[0.02466*(D-S)*S]  | |||
| 
 注釋  | 
 W--鍍鋅管每米重量:kg/m  | |||
| 
 C--鍍鋅管比黑鐵管增加的重量系數(shù)  | ||||
| 
 D--黑鐵管的外徑  | ||||
| 
 S--黑鐵管的壁厚  | ||||