호칭지름 외경 SCH 5S SCH 10S SCH 20S SCH 40S A B (mm) W.T. 304 316 W.T. 304 316 W.T. 304 316 W.T. 304 316   (mm) 304L 316L (mm) 304L 316L (mm) 304L 316L (mm) 304L 316L 6 1/8 10.5 1 0.237 0.238 1.2 0.278 0.28 1.5 0.336 0.338 1.7 0.373 0.375 8 1/4 13.8 1.2 0.377 0.379 1.65 0.499 0.503 2 0.592 0.592 2.2 0.636 0.64 10 3/8 17.3 1.2 0.481 0.484 1.65 0.643 0.647 2 0.762 0.762 2.3 0.859 0.865 15 1/2 21.7 1.65 0.824 0.829 2.1 1.03 1.03 2.5 1.2 1.2 2.8 1.32 1.33 20 3/4 27.2 1.65 1.05 1.06 2.1 1.31 1.32 2.5 1.54 1.55 2.9 1.76 1.77 25 1 34 1.65 1.33 1.34 2.8 2.18 2.19 3 2.32 2.33 3.4 2.59 2.61 32 1 1/4 42.7 1.65 1.69 1.7 2.8 2.78 2.8 3 2.97 2.99 3.6 3.51 3.53 40 1 1/2 48.6 1.65 1.93 1.94 2.8 3.19 3.21 3 3.41 3.43 3.7 4.14 4.16 50 2 60.5 1.65 2.42 2.43 2.8 4.02 4.05 3.5 4.97 5 3.9 5.5 5.53 65 2 1/2 76.3 2.1 3.88 3.91 3 5.48 5.51 3.5 6.35 6.39 5.2 9.21 9.27 80 3 89.1 2.1 4.55 4.58 3 6.43 6.48 4 8.48 8.53 5.5 11.5 11.5 90 3 1/2 101.6 2.1 5.2 5.24 3 7.37 7.42 4 9.72 9.79 5.7 13.6 13.7 100 4 114.3 2.1 5.87 5.91 3 8.32 8.37 4 11 11.1 6 16.2 16.3 125 5 139.8 2.8 9.56 9.62 3.4 11.6 11.6 5 16.8 16.9 6.6 21.9 22 150 6 165.2 2.8 11.3 11.4 6.4 13.7 13.8 5 20 20.1 7.1 28 28.1 200 8 216.3 2.8 14.9 15 4 21.2 21.3 6.5 34 34.2 8.2 42.5 42.8 250 10 267.4 3.4 22.4 22.5 4 26.2 26.4 6.5 42.2 42.5 9.3 59.8 60.2 300 12 318.5 4 31.3 31.5 4.5 35.2 35.4 6.5 50.5 50.8 10.3 79.1 79.6 350 14 355.6 4 35 35.3 5 43.7 43.9 8 69.3 69.7 11.1 95.3 95.9 400 16 406.4 4.5 45.1 45.3 5 50 50.3 8 79.4 79.9 12.7 125 125