镀锌钢管长度与重量换算

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按型号查找下表，镀锌*1.04~1.06系数 比如DN20的普通管理论重量1.63*1.04*6=10.17元/米（单价6元/KG）
低压流体输送用焊接钢管尺寸及重量      
公称口径   外径（mm）     普通管                                               加厚管 
（mm）                     壁厚（mm） 理论重量 （kg/m）   壁厚（mm） 理论重量 （kg/m）
6        1月8日                   10                    2 0.39                       2.5                0.46
8        1月4日 13.5           2.25                  0.62                         2.75              0.73
10      3月8日 17              2.25                  0.82                         2.75              0.97
15      1月2日 21.25         2.75                  1.26                         3.25              1.45
20      3月4日 26.75         2.75                  1.63                         3.5                2.01
25            1     33.5           3.25                  2.42                         4                   2.91
32    11月4日 42.25         3.25                  3.13                         4                   3.78
40    11月2日 48              3.5                    3.84                         4.25              4.58
50            2     60              3.5                    4.88                         4.5                6.16
65    2月21日 75.5           3.75                  6.64                         4.5                7.88
80            3     88.5           4                       8.34                         4.75              9.81
100          4     114            4                      10.85                        5                   13.44
125          5     140            4                      13.42                        5.5                18.24
150          6     165            4.5                   17.81                        5.5                21.63