|
STANDARD
SIST EN 3323:2009
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 3323
February 2009 ICS 49.030.20 English Version
Aerospace series - Bolts with double hexagon head, relieved shank long thread, - In heat resisting steel FE-PM 38 (FV 535) -Classification: 1 000 MPa/550 °C
Série aérospatiale - Vis à tête bihexagonale, à tige réduite, à filetage long, en acier résistant à chaud FE-PM38 (FV535) - Classification : 1 000 MPa/550 °C
Luft- und Raumfahrt - Zwölfkantschrauben, Dünnschaft, langes Gewinde, - Aus hochwarmfestem Stahl FE-PM 38 (FV 535) - Klasse: 1 000 MPa/550 °C This European Standard was approved by CEN on 2 August 2008.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3323:2009: ESIST EN 3323:2009
EN 3323:2009 (E) 2 Contents Page Foreword . 31 Scope . 42 Normative references . 43 Required characteristics . 53.1 Configuration – Dimensions – Tolerances . 53.2 Surface roughness . 53.3 Material . 53.4 Surface treatment . 54 Designation . 165 Marking . 166 Technical specification . 16 SIST EN 3323:2009
EN 3323:2009 (E) 3 Foreword This document (EN 3323:2009) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by August 2009, and conflicting national standards shall be withdrawn at the latest by August 2009. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. SIST EN 3323:2009
EN 3323:2009 (E) 4 1 Scope This standard specifies the characteristics of double hexagon head bolts with relieved shank and long thread in heat resisting steel FM-PM 38, tensile strength class 1 000 MPa at room temperature. The maximum test temperature of the material is 550 °C.
These bolts are to be used in aerospace fastening systems, of parts made in titanium, mainly stressed in tension.
2 Normative references EN 2424
Aerospace series — Marking of aerospace products1
EN 2493
Aerospace series — Heat resisting steel FE-PM 38 — 1 000 MPa ≤ Rm ≤ 1140 MPa — Bars2
EN 3302 Aerospace series - Bolts in heat resisting steel FE-PM1708 (FV535) - Classification: 1 000 MPa/550 °C - Technical specification1 ISO 3353-1 Aerospace — Lead and runout threads — Part 1: Rolled external threads ISO 4095 Aerospace — Bihexagonal drives — Wrenching configuration — Metric series ISO 5855-1 Aerospace — MJ Threads — Part 1: General requirements ISO 5855-2 Aerospace — MJ Threads — Part 2: Limit dimensions for bolts and nuts
1 Published as ASD standard at the date of publication of this standard. 2 Published as ASD Prestandard at the date of publication of this standard. SIST EN 3323:2009
EN 3323:2009 (E) 5
3 Required characteristics 3.1 Configuration – Dimensions – Tolerances The configuration shall be in accordance with the figure. Dimensions and tolerances shall conform to the values shown in the figure and in Tables 1 and 2. 3.2 Surface roughness See the figure. 3.3 Material Heat resisting steel FM-PM 38 to EN 2493. 3.4 Surface treatment None.
SIST EN 3323:2009
EN 3323:2009 (E) 6
Key 1 Pi
...