钢管尺寸DN25与SC25区别

A B ASME SCH10 SCH20 SCH30 STD SCH40 SCH60 XS SCH80 SCH100 SCH120 SCH140 SCH160 XXS 15 1/2" 21.3 2.11 2.41 2.77 2.77 3.73 3.73 4.78 7.47 20 3/4" 26.7 2.11 2.41 2.87 2.87 3.91 3.91 5.56 7.82 25 1" 33.4 2.77 2.9 3.38 3.38 4.55 4.55 6.35 9.09 32 1.1/4" 42.2 2.77 2.97 3.56 3.56 4.85 4.85 6.35 9.7 40 1.1/2" 48.3 2.77 3.18 3.68 3.68 5.08 5.08 7.14 10.15 50 2" 60.3 2.77 3.18 3.91 3.91 5.54 5.54 8.74 11.0

DN in mm m/kg mm m/kg mm m/kg mm m/kg mm m/kg mm m/kg mm m/kg mm m/kg mm m/kg mm 10 1/8 17 0.00 2.5 0.89 3.5 1.17 15 1/2 21.3 1.6 0.78 2 0.95 2.9 1.32 3.6 1.57 4.5 20 3/4 26.9 1.8 1.11 2.3 1.40 2.9 1.72 4.0 2.26 5.6 25 1 33.7 2.00 1.56 2.6 1.99 3.2 2.41 4.5 3.24 6.3 32 1 1/4 42.4 2.60 2.55 2.9 2.82 3.6 3.44 5.0 4.61 6.3 40 1 1/2 48.3 2.60 2.93 2.9 3.25 3.6 3.97 5.0 5.34 7.1 50 2 60.3 2.90 4.10 3.2