GAS Pipe (SGP)
Pipe Size andShoe Size Outer Diaof Pipe Inner Diaof Pipe Thickness BendingRadius
SGP-15 (1/2) 21.7 16.1 2.8 60
SGP-20 (3/4) 27.2 21.6 2.8 80
SGP-25 (1) 34.0 27.6 3.2 100
SGP-32 (1 1/4) 42.7 35.7 3.5 130
SGP-40 (1 1/2) 48.6 41.6 3.5 160
SGP-50 (2) 60.5 52.9 3.8 220
SGP-65 (2 1/2 76.3 67.9 4.2 320
SGP-80 (3) 89.1 80.7 4.2 425
SGP-90 (3 1/2) 101.6 93.2 4.2 550
SGP-100 (4) 114.3 105.3 4.2 600
Thick Steel Conduit (B)
Pipe Size andShoe Size Outer Diaof Pipe Inner Diaof Pipe Thickness BendingRadius
B16 (1/2)21.0 16.4 2.3 75
B22 (3/4)26.5 21.9 2.3 90
B28 (1) 33.3 28.3 2.5 130
B36 (1 1/4)v 41.9 36.9 2.5 195
B42 (1 1/2) 47.8 42.8 2.5 230
B54 (2) 59.6 54.0 2.8 270
B70 (2 1/2) 75.2 69.6 2.8 450
B82 (3) 87.9 82.3 2.8 500
B92 (3 1/2) 100.7 93.7 3.5 500
B104 (4) 113.4 106.4 3.5 680