公称外径 公 称 壁 厚 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 18.0 20.0 22.0 mm in 219.1 8-5/8 31.53 36.61 41.65 273.1 10-3/4 39.52 45.94 52.30 323.9 12-3/4 47.04 54.71 62.32 69.89 77.41 (325) 47.20 54.90 62.54 70.14 77.68 355.6 14 51.73 60.18 68.58 76.93 85.23 (377.0) 54.89 63.87 72.80 81.67 90.50 406.4 16 59.25 68.95 78.60 88.20 97.76 107.26 116.72 (426.0) 62.41 72.33 82.46 92.55 102.59 112.58 122.51 457 18 66.73 77.68 88.58 99.44 110.24 120.99 131.69 (478.0) 69.84 81.30 92.72 104.09 115.41 126.69 137.90 508.0 20 74.28 86.49 98.65 110.75 122.81 134.82 146.79 158.69 170.56 (529.0) 77.38 90.11 102.78 115.40 127.99 140.52 152.99 165.43 177.80 559.0 22 81.82 95.29 108.70 122.07 135.38 148.65 161.88 175.04 188.17 610.0 24 89.37 104.10 118.77 133.39 147.97 162.48 176.97 191.40 205.78 (630.0) 92.33 107.54 122.71 137.83 152.90 167.92 182.89 197.81 212.68 660.0 26 96.77 112.73 128.63 144.48 160.30 176.05 191.77 207.43 223.04 711.0 28 104.32 121.53 138.70 155.81 172.88 189.89 206.86 223.78 240.65 257.47 274.24 (720.0) 105.65 123.09 140.47 157.81 175.10 192.34 209.52 226.66 243.75 260.80 277.79 762.0 30 111.86 130.34 148.76 167.13 185.45 203.73 221.95 240.13 258.26 276.33 294.36 813.0 32 119.41 139.14 158.82 178.45 198.03 217.56 237.05 256.48 275.86 295.20 314.48 (820.0) 12.45 140.35 160.20 180.00 199.76 219.46 239.12 258.72 278.28 297.79 317.25 864.0 34 147.94 168.88 189.77 210.61 231.40 252.14 272.83 293.48 314.06 334.61 914.0 39 178.75 200.87 222.94 244.96 266.94 288.86 310.73 332.56 354.34 (920.0) 179.93 202.20 224.42 246.59 268.70 290.78 312.79 334.78 356.68 965.0 38 188.81 212.19 235.52 258.80 282.03 305.21 328.34 351.43 374.46 1016.0 40 198.87 223.51 248.09 272.63 297.12 321.56 345.95 370.29 394.58 443.02 (1020.0) 199.66 224.39 249.08 273.72 298.31 322.84 347.33 371.77 396.16 444.77 1067.0 42 208.93 234.83 260.67 286.47 312.21 337.91 363.56 389.16 414.71 465.66 1118.0 44 218.99 246.15 273.25 300.30 327.31 354.26 371.17 408.02 434.83 488.30 1168.0 46 228.86 257.24 285.58 313.87 342.10 370.29 398.43 426.52 454.56 510.49 1219.0 48 238.92 268.56 298.16 327.70 357.20 386.64 416.04 445.39 474.68 553.13 (1220.0) 239.12 268.79 298.40 327.97 357.49 386.96 416.38 445.76 475.08 533.58 1321.0 52 291.20 323.31 327.97 387.38 419.34 451.26 483.12 514.93 578.41 (1420.0) 347.72 355.37 416.66 451.08 485.41 519.74 553.96 622.32 690.52 1422.0 56 348.22 382.23 417.27 451.72 486.13 520.48 554.79 623.25 691.51 759.58 1524.0 60 373.38 410.44 447.46 484.43 521.34 558.21 595.03 668.52 741.82 814.91 (1620.0) 397.03 436.48 457.84 515.20 554.46 593.73 623.87 711.11 789.12 867.00 1626.0 64 398.53 438.11 477.64 517.13 556.56 595.95 635.28 713.80 792.13 810.26 1727.0 68 423.44 465.51 507.53 549.51 591.43 633.31 675.13 758.64 841.94 925.05 (1820.0) 446.37 490.74 535.06 579.32 623.50 667.71 711.79 799.92 887.81 975.51 1829.0 72 493.18 626.65 671.04 714.20 803.92 890.77 980.39 1930.0 76 661.52 708.40 755.23 848.75 942.07 1035.19 (2020.0) 692.60 741.69 790.75 888.70 986.41 1084.02 2032.0 80 696.74 746.13 795.48 894.03 992.38 1090.53 (2220.0) 761.65 815.68 869.66 977.50 1085.80 1192.53 (2420.0) 948.58 1066.26 1183.75 1301.04 (2540.0) 100 995.93 1119.53 1242.94 1366.15 (2845.0) 112 1116.28 1254.93 1393.37 1531.63 1、经供需双方协议，可供应介于本表所列公称外径和公称壁厚之间的尺寸和钢管。 2、本表中加括号的公称外径钢管为保留直径。