公称外径 dn
S12.5管材系列壁厚
emin
em,max
32 40 50 56 63
75 80 90 100 110
125 160 200 250 315
3.0 3.0 3.0 3.0 3.0
3.0 3.1 3.5 3.8 4.2
4.8 6.2 7.7 9.6 12.1
3.5 3.5 3.5 3.5 3.5
3.5 3.6 4.1 4.4 4.9
5.5 7.1 8.7 10.8 13.6