3线括4567nps600无线线管公直外壁厚和管子表径称径号公dn直称径3265125550表中sch5ssch10ssch20ssch40ssch80s线不线线管子壁厚其余线线和合金线壁碳参数厚线管壁厚参数采用参数sh3405线准
NPS≤600无缝钢管公称直径、外径、壁厚和管子表号 公称直径 DN A 6 8 10 15 20 25 B 1/8 1/4 3/8 1/2 3/4 1
323.9 4.0 355.6 4.0 406.4 4.0 457 508 559 610 4.0 5.0 5.0 5.6
10.0 14.0
10.0 11.0 15.0 13.0 19.0 24.0 28.0 32.0 36.0 10.0 13.0 17.0 13.0 22.0 26.0 32.0 36.0 40.0
3.5 4.0 4.0 4.5 5.0 5.0 5.5 7.0 7.5 8.5 9.5 11.0 7.0 8.0 9.0 11.0 13.0 14.0 5.0 5.5 6.5 6.5 7.0 8.5 9.5 7.5 8.0 9.0 10.0 10.0 11.0 14.0
(32) 1 1/4 40 50 1 1/2 2
外径 Sch5S Sc10S Sch20S Sch40S Sch80S Sch10 mm 10 14 17 22 27 34 42 48 60 76 89 114 140 168 219 273 1.2 1.6 1.6 1.6 1.6 1.6 1.6 2.0 2.0 2.0 2.8 2.8 2.8 3.5 1.6 2.0 2.0 2.8 2.8 2.8 2.8 3.0 3.0 3.0 3.5 3.5 4.0 4.0 4.5 5.0 5.0 5.0 5.6 5.6 6.3 2.0 2.5 2.5 3.0 3.0 3.0 3.5 3.5 4.0 4.0 5.0 5.0 6.5 6.5 6.5 2.5 3.0 3.0 3.5 3.5 4.0 4.0 5.0 5.5 6.0 6.5 7.0 8.0 9.5 9.5 3.2 4.0 4.0 4.5 5.0 5.0 5.5 7.0 7.5 8.5 9.5 11.0 13.0 15.0 17.0 6.3 6.3 6.3 6.3 6.3 6.3 mm mm mm mm mm mm