標準號：BS EN 754-8-2008
中文標準名稱：鋁和鋁合金.冷拉桿材/棒材和管材.出水孔管材尺寸和形狀公差
英文標準名稱：Aluminium and aluminium alloys - Cold drawn rod/bar and tube - Porthole tubes, 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
適用范圍：This document specifies the tolerances on dimensions and form for aluminium and aluminium alloy cold drawnporthole tubes with an outside diameter (OD) from 3 mm to 350 mm (round tube, see Figure 1) or with a crosssection contained within a circumscribing circle (CD) from 8 mm to 300 mm (other than round tube, see Figure2), supplied in straight lengths.This document only applies to cold drawn tube for general engineering applications made in the followingalloys:? EN AW-1050A, EN AW-1200;? EN AW-3003, EN AW-3103;? EN AW-5005, EN AW-500**, EN AW-5049, EN AW-5251, EN AW-5052;? EN AW-6012, EN AW-6060, EN AW-6061, EN AW-6262, EN AW-6262A;? EN AW-6063, EN AW-6063A, EN AW-6065, EN AW-6082;? EN AW-7020.The temper designations used in this part are according to EN 515.This document only applies to tube produced by the porthole/bridge method of extrusion only (and then colddrawn to the final dimensions).This document does not apply to:? cold drawn tubes produced by the seamless, die/mandrel method (EN 754-7),? tubes delivered in coils (EN 13958),? coiled tubes cut to length (EN 13958).Figure 1 — Round tubeFigure 2 — Circumscribing circle for other than round tube