本欧洲标准规定了外径（OD）为8 mm至450 mm（圆管，见图1）或横截面包含在外接圆圈内的铝和铝合金挤压无缝管的尺寸和形状公差CD）从10mm到350mm（圆管除外，见图2），以直线长度供应。 本欧洲标准仅适用于通过无缝模具/心轴挤出方法生产的管材。本标准仅适用于普通工程应用的挤压无缝管。 本部分使用的温度指示符合EN 515。 本欧洲标准不适用于: - 通过孔/桥法（EN 755-8）生产的挤出管， - 以线圈输送的管（EN 13957）， - 卷管长度（EN 13957）。 （.）

This European Standard specifies the tolerances on dimensions and form for aluminium and aluminium alloy extruded seamless tubes with an outside diameter (OD) from 8 mm to 450 mm (round tube, see Figure 1) or with a cross section contained within a circumscribing circle (CD) from 10 mm to 350 mm (other than round tube, see Figure 2), supplied in straight lengths. This European Standard only applies to tube produced by the seamless die/mandrel method of extrusion. This standard applies to extruded seamless tube for general engineering applications only. The temper designations used in this part are according to EN 515. This European Standard does not apply to: - extruded tubes produced by porthole/bridge method (EN 755-8), - tubes delivered in coils (EN 13957), - coiled tubes cut to length (EN 13957). (.)