외경 Outside Diameter(㎜)	두께< Thickness (㎜)	단위중량 Unit Weight (kg/m)
21.7	2.0	0.972
27.2	2.0 2.3	1.24 1.41
34.0	2.3	1.80
42.7	2.3 2.8	2.29 2.76
48.6	2.3 2.8 3.2	2.63 3.16 3.58
60.5	2.3 3.2 4.0	3.30 4.52 5.57
76.3	2.8 3.2 4.0	5.08 5.77 7.13
89.1	2.8 3.2 4.0	5.96 6.78 8.39
101.6	3.2 4.0 5.0	7.76 9.63 11.9
114.3	3.2 3.6 4.5 5.6	8.77 9.83 12.2 15.0
139.8	3.6 4.0 4.5 6.0	12.1 13.4 15.0 19.8
165.2	4.5 5.0 6.0 7.0	17.8 19.8 23.6 27.3
190.7	4.5 5.0 6.0 7.0	20.7 22.9 27.3 31.7