BS EN 754-7:2016规定了铝和铝的尺寸和形状公差 外径（外径）为3 mm至350 mm（圆管、， 参见图1）或横截面包含在8 mm至 以直线长度供应300 mm。本欧洲标准仅适用于采用无缝模具/心轴法生产的管材 挤压（然后冷拉至所需的最终尺寸）。本部分中使用的回火名称符合EN 515。本文件适用于一般工程应用的冷拔无缝钢管。本文件不适用于:通过分流孔/桥接法（EN 754-8）生产的冷拔管、以盘管形式交付的管（EN 13958）、按长度切割的盘管（EN 13958）。交叉引用:EN 754-1:2016EN 515EN 754- 8EN 13958购买本文件时提供的所有当前修订版均包含在购买本文件中。

BS EN 754-7:2016 specifies the tolerances on dimensions and form for aluminium and aluminium alloys cold drawn seamless tubes with an outside diameter (OD) from 3 mm to 350 mm (round tube, see Figure 1) or with a cross section contained within a circumscribing circle (CD) from 8 mm to 300 mm supplied in straight lengths.This European Standard only applies to tube produced by the seamless die/mandrel method of extrusion (and then cold drawn to the final dimensions required).The temper designations used in this part are according to EN 515.This document applies to cold drawn, seamless tube for general engineering applications.This document does not apply to:cold drawn tube produced by the porthole/bridge method (EN 754-8),tubes delivered in coils (EN 13958),coiled tubes cut to length (EN 13958).Cross References:EN 754-1:2016EN 515EN 754-8EN 13958All current amendments available at time of purchase are included with the purchase of this document.