351 67.67 71.80 75.91 80.01 84.10 92.23 100.32 108.36 116.35 124.29
377 — — 81.68 86.10 90.51 99.29 108.02 117.00 125.33 133.91
402 — — 87.21 91.95 96.67 106.06 115.41 124.71 133.94 143.15
426 — — 92.55 97.57 102.59 112.58 122.52 132.41 142.25 152.04
450 — — 97.87 103.20 108.50 119.08 130.61 140.09 150.52 160.90
480 — — 104.52 110.22 115.90 127.22 139.49 149.71 160.88 172.00
500 — — 108.96 114.91 120.83 132.65 145.41 156.12 167.79 179.40
530 — — 115.62 121.94 128.23 140.78 154.29 165.74 178.14 190.50
560 — — 122.28 128.97 135.63 148.92 163.16 175.36 188.50 201.60
600 — — 131.17 138.34 145.50 159.78 175.00 188.18 202.31 216.39
630 — — 137.81 145.36 152.89 167.91 183.88 197.80 212.67 227.49
外径/mm 壁厚/mm
16 17 18 19 20 22 25 28
理论重量/（kg/m）
57 — — — — — — — —
68 20.52 — — — — — — —
70 21.31 — — — — — — —
73 22.49 23.48 24.41 25.30 — — — —
76 23.68 24.74 25.75 26.71 — — — —
83 26.44 27.67 28.85 29.99 — — — —
89 28.80 30.19 31.52 32.80 34.03 36.35 — —
95 31.17 32.70 34.18 35.61 36.99 39.61 — —
102 33.93 35.64 37.29 38.89 40.44 43.40 — —
108
