[구조용 강관]
호 칭 바깥지름 허용오차 두 께 Skelp폭 중 량 本/M
S inch mm mm mm mm (kg/m) T
15 5/8 15.9 ±0.20 1.5 48.0 0.435 383
47.6 0.533 312
19 3/4 19.1 ±0.20 1.5 58.1 0.530 314
57.6 0.651 256
22 7/8 22.2 ±0.20 1.5 67.8 0.621 268
67.3 0.766 217
25 1 25.4 ±0.20 1.5 77.9 0.761 232
77.4 0.884 188
28 1⅛ 28.6 ±0.20 1.5 87.4 0.811 205
87.9 1.002 166
31 31.8 ±0.20 1.5 98.0 1.906 183
97.5 1.121 148
38 38.1 ±0.20 1.5 117.8 1.092 152
117.3 1.354 123
50 2 50.8 ±0.25 1.5 157.6 1.468 113
157.1 1.824 91
65 63.5 ±0.30 1.5 197.0 2.294 72
75 3 76.2 ±0.35 1.5 236.0 2.763 60
100 4 101.6 ±0.50 1.5 316.0 3.702 22