标准摘要
[中文适用范围]： 本文件规定了以下产品的形状和尺寸公差： — 锻铝和铝合金挤压圆管，直径从 13 毫米到 450 毫米。 — 锻铝和铝合金挤压方形、矩形和六角管，外接圆直径最大为 350 毫米。 本文件适用于挤压圆形、方形、矩形和六角管。 四位数字名称符合锻铝和锻铝合金（称为“青色板”）的国际合金名称和化学成分限值注册。 [外文原描述]： This document specifies the tolerances on form and dimensions of the following: — wrought aluminium and aluminium alloy extruded round tubes, having diameters from 13 mm up to 450 mm. — wrought aluminium and aluminium alloy extruded square, rectangular and hexagonal tubes, having circumscribing circle up to 350 mm in diameter. This document is applicable to extruded round, square, rectangular and hexagonal tubes. Four-digit numerical designations are in line with the Registration of International Alloy Designations and Chemical Composition Limits for Wrought Aluminum and Wrought Aluminum Alloys (known as "Teal sheets"). [ 1 ]
英文名称Wrought aluminium and aluminium alloys — Extruded rods/bars, tubes and profiles — Part 6: Tolerances on form and dimensions for round, square, rectangular and hexagonal tubes