SIZE  WEIGHT
mm           diameter            kg/m                      kg/foot                 
 40.0  9.18 2.8
 45.0  11.61 3.54
 50.0  14.32 4.37
 55.0  17.34 5.29
 60.0  20.63 6.29
 65.0  24.2 7.38
 70.0  28.07 8.56
 75.0  32.23 9.83
 80.0  26.66 11.18
 85.0  41.38 12.62
 90.0  46.4 14.15
 95.0  51.71 15.77
 100.0  57.28 17.47
 105.0  63.17 19.26
 110.0  69.31 21.14
 115.0  75.77 23.11
 120.0  82.50 25.16
 125.0  89.51 27.3
 130.0  96.82 29.53
 135.0  104.40 31.84
 140.0  112.27 34.24
 145.0  120.43 36.73
 150.0  128.89 39.31
 155.0  137.61 41.97
 160.0  146.66 44.73
 165.0  155.94 47.56
 170.0  165.54 50.49
 175.0  175.44 53.51
 180.0  185.61 56.61
 190.0  206.79 63.07
 200.0  229.12 69.88
 210.0  252.63 77.05
 220.0  277.25 84.56
 230.0  303.02 92.42
 240.0  329.94 100.63
 250.0  358.00 109.19
 260.0  387.21 118.1
 290.0  481.74 146.93
 310.0  568.40 173.36
330.0 624.4 190.31
350.0 702.3 214.05
380.0 827.9 252.33
410.0 963.8 293.75
450.0 1161.0 353.81
470.0 1266.5 386.01
500.0 1433.4 436.88
530.0 1610.5 490.86