本文件规定了热加工圆形、方形、矩形和椭圆形结构的公差 空心型材，壁厚不超过120 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800 mm×800 mm；-矩形:外部尺寸不超过750mm×500mm；-椭圆形:外部尺寸不超过500毫米×250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。 中给出了涵盖更常见尺寸的有限范围内的尺寸和截面特性 附件B。 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。交叉参考:EN 10210-1购买本文件时可获得的所有现行修订版均包含在购买本文件中。

This document specifies tolerances for hot finished circular, square, rectangular and elliptical structural hollow sections, manufactured in wall thicknesses up to 120 mm, in the following size ranges: — Circular: Outside diameters up to 2 500 mm;— Square: Outside dimensions up to 800 mm × 800 mm;— Rectangular: Outside dimensions up to 750 mm × 500 mm;— Elliptical: Outside dimensions up to 500 mm × 250 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 covering the 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 10210-1All current amendments available at time of purchase are included with the purchase of this document.