不锈钢管尺寸对照表 (美标 ANSI- 日标 JIS- 德标 DIN- 英标 BS- 韩标 KS) Dimensions for ASME/ANSI Standards Unit:m m B16.9 B16.28 B36.10 Nominal pipe Size(NPS ) Outside Diamet er Nominal Wall Thickness Sch5 s SCH10 S Sch2 0 Sch3 0 Sch4 0 ST D Sch8 0 XS Sch16 0 XXS 8 1/4 13.7 0.54 - 1.65 - 1.85 2.24 2.2 4 3.02 3.02 - - 10 3/8 17.1 0.675 - 1.65 - 1.85 2.31 2.3 1 3.20 3.20 - - 15 1/2 21.3