本文件规定了冷成型焊接圆形、方形、矩形和椭圆形的公差 结构空心型材，壁厚不超过40 mm，尺寸范围如下: -圆形:外径不超过2500 mm；-方形:外部尺寸不超过500 mm×500 mm；-矩形:外部尺寸不超过500mm×300mm；-椭圆:外形尺寸高达480毫米×240毫米。 附录A中给出了根据本标准尺寸公差制造的用于结构设计的型材截面特性计算公式。 附录B中给出了有限范围内更常见尺寸的尺寸和截面特性。 注:截面长轴（yy）和短轴（zz）的名称与轴名称对齐 用于欧洲结构规范中的结构设计。交叉引用:EN 10219-1EN 1993-5EN 1993-1-6购买本文件时可获得的所有现行修改件均包含在购买本文件中。

This document specifies tolerances for cold formed welded circular, square, rectangular and elliptical structural hollow sections, manufactured in wall thicknesses up to 40 mm, in the following size ranges: — circular: Outside diameters up to 2 500 mm;— square: Outside dimensions up to 500 mm × 500 mm;— rectangular: Outside dimensions up to 500 mm × 300 mm;— elliptical: Outside dimensions up to 480 mm × 240 mm. The formulae for calculating sectional properties of sections manufactured to the dimensional tolerances of this standard, to be used for the purposes of structural design, are given in Annex A. Dimensions and sectional properties for a limited range of more common sizes are given in Annex B. NOTE The designation of the sections' major axis (yy) and minor axis (zz) aligns with the axis designation used for structural design in the structural Eurocodes.Cross References:EN 10219-1EN 1993-5EN 1993-1-6All current amendments available at time of purchase are included with the purchase of this document.