1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM prEN 2704 Edition P 1 February 2011 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATIONAvenue de Tervuren, 270 - B-1150 Brussels - Tel. + 32 2 775 8126 - Fax. + 32 2 775 8131 - www.asd-stan.orgICS: Supersedes Editio
2、n 1 of May 1985 Descriptors: ENGLISH VERSION Aerospace series Aluminium alloy AL-P2024 T3511 Drawn bar De 75 mm Srie arospatiale Alliage daluminium AL-P2024 T3511 Barres tiresDe 75 mm Luft- und Raumfahrt Aluminiumlegierung AL-P2024 T3511 Gezogene Stangen De 75 mm This “Aerospace Series“ Prestandard
3、has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Association of Europe - Standardization). It is published for the needs of the European Aerospace Industry. It has been technically approved by the experts of the concerned Domain following member comments.
4、Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and review by users and formal agreement of ASD-STAN, it will be su
5、bmitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for formal vote and transformation to full European Standard (EN). The CEN national members have then to implement the EN at national level by giving the EN the status of a national standard and by withdrawin
6、g any national standards conflicting with the EN. Edition approved for publication 28 February 2011 Comments should be sent within six months after the date of publication to ASD-STAN Metallic Material Domain Copyright 2011 by ASD-STAN prEN 2704:2011 (E) 2 Contents Page Foreword2 Introduction.3 1 Sc
7、ope 3 2 Normative references3 Foreword This standard was reviewed by the Domain Technical Coordinator of ASD-STANs Metallic Material Domain. After inquiries and votes carried out in accordance with the rules of ASD-STAN defined in ASD-STANs General Process Manual, this standard has received approval
8、 for Publication. prEN 2704:2011 (E) 3 Introduction This standard is part of the series of EN metallic material standards for aerospace applications. The general organization of this series is described in EN 4258. This standard has been prepared in accordance with EN 4500-2. 1 Scope This standard s
9、pecifies the requirements relating to: Aluminium alloy AL-P2024 T3511 Drawn bar De 75 mm for aerospace applications. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated ref
10、erences, the latest edition of the referenced document (including any amendments) applies. EN 2004-1, Aerospace series Test methods for aluminium and aluminium alloy products Part 1: Determination of electrical conductivity of wrought aluminium alloys 1)EN 4050-4, Aerospace series Test method for me
11、tallic materials Ultrasonic inspection of bars, plates, forging stock and forgings Part 4: Acceptance criteria 1)EN 4258, Aerospace series Metallic materials General organization of standardization Links between types of EN standards and their use EN 4400-3, Aerospace series Aluminium and aluminium
12、alloy wrought products Technical specification Part 3: Bar and section1)EN 4500-2, Aerospace series Metallic materials Rules for drafting and presentation of material standards Part 2: Specific rules for aluminium, aluminium alloys and magnesium alloys 1)1) Published as ASD-STAN Prestandard at the d
13、ate of publication of this standard (www.asd-stan.org). prEN 2704:2011 (E) 4 1 Material designation Aluminium alloy AL-P2024 T3511 2 Others Element Si Fe Cu Mn Mg Cr Zn Ti Zr Ti Each Total Al min. 3,8 0,30 1,2 Chemical composition % max. 0,50 0,50 4,9 0,9 1,8 0,10 0,25 0,15 0,20 0,05 0,15 Base 3 Met
14、hod of melting _ 4.1 Form Bar 4.2 Method of production Drawn 4.3 Limit dimension(s) mm De 75 5 Technical specification EN 4400-3 Delivery condition T3511 6.1 Heat treatment Solution treated 490 C 500 C / WQ 40 C 1,5 % controlled stretched 3 % minor straightening permitted ambient / t 5 d 6.2 Deliver
15、y condition code U Use condition T3511 7 Heat treatment Delivery condition Characteristics 8.1 Test sample(s) See EN 4400-3. 8.2 Test piece(s) See EN 4400-3. 8.3 Heat treatment T3511 9 Dimensions concerned mm De 75 10 Thickness of cladding on each face % 11 Direction of test piece L 12 Temperature C
16、 Ambient 13 Proof stress Rp0,2MPa 315 14 Strength RmMPa 440 15 Elongation A % 13 a16 T Reduction of area Z % 17 Hardness HB 120 (for information) 18 Shear strength RCMPa 19 Bending k 20 Impact K J 21 Temperature C 22 Time t h 23 Stress aMPa 24 Elongation a % 25 Rupture stress RMPa 26 C Elongation at
17、 rupture A % 27 Notes (see line 98) aprEN 2704:2011 (E) 5 32 Electrical conductivity See EN 4400-3. 1 EN 2004-1 7 17 MS/m 20 MS/m 44 External defects See EN 4400-3. 61 Internal defects See EN 4400-3. 1 EN 4050-4 7 Class 3 95 Marking inspection See EN 4400-3. 96 Dimensional inspection See EN 4400-3. 98 Notes aA50 mm 12 % for thicknesses De 10 mm. 99 Typical use prEN 2704:2011 (E) 6 100 Product qualification See EN 4400-3. Qualification programme to be agreed between manufacturer and purchaser.
