钢管外径和公称直径.doc

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1、A系列为国际通用系列（俗称英制管）B系列为国内沿用系列（俗称公制管）(mm)公称直径钢管外径A系列（英制管）B系列（公制管）DN1017.214DN1521.318DN2026.925DN2533.732DN3242.438DN4048.345DN5060.357DN6576.176DN8088.989DN100114.3108DN125139.7133DN150168.3159DN200219.1219DN250273273DN300323.9325DN350355.6377DN400406.4426DN450457480DN5005

2、08530DN600610630DN700711720DN800813820DN900914920DN100010161020DN120012191220DN140014221420DN160016261620DN180018291820DN200020322020公称直径钢管外径NPS（in）DN1/21521.33/42026.912533.711/43242.411/24048.325060.321/26576.138088.94100114.35125139.76150168.38200219.110250273.0123003

3、23.914350355.616400406.4184504572050050822550559246006102665066028700711307507603280081334850864369009143895096540100010164210501067441100111846115011684812001219501250127052130013215413501372561400142258145014736015001524