標準號：BS EN 12020-2-2008
中文標準名稱：鋁及鋁合金.合金EN AW-6060和EN AW-6063擠壓的精密型材:尺寸和形狀公差
英文標準名稱：Aluminium and aluminium alloys — Extruded precision profiles in alloys EN AW-6060 and EN AW-6063 — Part 2: Tolerances on dimensions and form
標準類型：H61
發布日期：2008/4/30 12:00:00
實施日期：2008/4/30 12:00:00
中國標準分類號：H61
國際標準分類號：77.150.10
引用標準：EN ISO 1101
適用范圍：This document specifies tolerances on dimensions and form of extruded precision profiles, in alloys EN AW-6060 and EN AW-6063 manufactured with and without a thermal barrier (see Figures 1 and 2). It applies toextruded products supplied without further surface treatment. Precision profiles covered in this standard aredistinguished from extruded profiles for general applications covered in EN 755-9 by the followingcharacteristics:? they are mainly for architectural applications;? they meet more stringent requirements regarding the surface condition of visible surfaces;? the maximum diameter of the circumscribing circle CD is 350 mm;? they are made to closer tolerances on dimensions and form.In the case of profiles which, due to the complexity of their design, are difficult to manufacture and specify,then special agreements between supplier and purchaser may need to be reached.NOTE The effect of the thermal barrier material on the dimensional tolerances is covered by this document althoughthe actual thermal barrier material itself is not (see EN 14024).