1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM ASD-STAN prEN 4808 Edition P 1 December 2015 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATION Rue Montoyer 10 - 1000 Brussels - Tel. + 32 2 775 8126 - Fax. + 32 2 775 8131 - www.asd-stan.orgICS: Descriptors: ENGL
2、ISH VERSION Aerospace series Flange couplings Weld coupling, 90 elbow, in nickel alloy Inch series Luft- und Raumfahrt Rohrverschraubung mit Flanschen Schweistutzen, Winkelstutzen 90, aus Nickellegierung Inch-Reihe Srie arospatiale Raccordement bride Raccord souder, coude 90, en alliage de nickel Sr
3、ie en inches This “Aerospace Series“ Prestandard 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
4、 the concerned Domain following member comments. 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 user
5、s and formal agreement of ASD-STAN, the ASD-STAN prEN will be submitted 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 g
6、iving the EN the status of a national standard and by withdrawing any national standards conflicting with the EN. ASD-STAN Technical Committee approves that: “This document is published by ASD-STAN for the needs of the European Aerospace Industry. The use of this standard is entirely voluntary, and
7、its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the sole responsibility of the user.” ASD-STAN reviews each standard and technical report at least every five years at which time it may be revised, reaffirmed, stabilized or cancelled.
8、ASD-STAN invites you to send your written comments or any suggestions that may arise. All rights reserved. No parts of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without
9、prior written permission of ASD-STAN. Order details: E-mail: salesasd-stan.org Web address: http:/www.asd-stan.org/ Edition approved for publication 1stDecember 2015 Comments should be sent within six months after the date of publication to ASD-STAN Mechanical Domain Copyright 2016 ASD-STAN prEN 480
10、8:2015 (E) 2 Contents Page Foreword .2 1 Scope .3 2 Normative references .3 3 Required characteristics 3 4 Designation .6 5 Identification marking 6 6 Technical specification 6 7 Quality Assurance 6 Foreword This standard was reviewed by the Domain Technical Coordinator of ASD-STANs Mechanical Domai
11、n. 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 for Publication. prEN 4808:2015 (E) 3 1 Scope This standard specifies the characteristics of straight welded coupling in nickel alloy for
12、 swivel flange couplings for inch series aerospace applications. Nominal pressure: The parts shall withstand nominal pressures given in Table 1. The nominal pressure of the assembly depends on associated seal, tube material characteristics, tube diameter and tube wall thickness (see EN 4814). NOTE A
13、ssembly in accordance with TR 4815. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the refe
14、renced document (including any amendments) applies. EN 2424, Aerospace series Marking of aerospace products EN 2516, Aerospace series Passivation of corrosion resisting steels and decontamination of nickel base alloys EN 3671, Aerospace series Heat resisting alloy NI-PH3601 (NiCr22Mo9Nb) Non heat tr
15、eated Forging stock a or D 250 mm EN 4379, Aerospace series Heat resisting alloy NI-PH3601 (NiCr22Mo9Nb) Solution treated, forging De 200 mm EN 4380, Aerospace series Heat resisting alloy NI-PH3601 (NiCr22Mo9Nb) Solution treated Bar and section De 200 mm 1) EN 4814, Aerospace series Flange couplings
16、, up to 21 000 kPa Technical specification Inch series 1) EN 9100, Quality Management Systems Requirements for Aviation, Space and Defense Organizations TR 4815, Aerospace series Flange couplings, up to 21 000 kPa Design standard Inch series 2) AMS 5383, Nickel Alloy, Corrosion and Heat-Resistant, I
17、nvestment Castings - 52.5Ni - 19Cr - 3.0Mo - 5.1Cb (Nb) - 0.90Ti - 0.60Al - 18Fe - Vacuum Melted - Homogenization and Solution Heat Treated 3) 3 Required characteristics 3.1 Configuration Dimensions Tolerances Masses See Figure 1 and Table 1. Dimensions and tolerances are in millimetres, except othe
18、rwise specified. 3.2 Material and surface treatment AMS 5383 or EN 4380 or EN 3671 or EN 4379 1) Published as ASD-STAN Prestandard at the date of publication of this standard. (http:/www.asd-stan.org/) 2) Published as ASD-STAN Technical Report at the date of publication of this standard. (http:/www.
19、asd-stan.org/) 3) Published by: SAE National (US) Society of Automotive Engineers.(http:/www.sae.org/) prEN 4808:2015 (E) 4 Surface finish: Passivation EN 2516 Key 1 3D view (for information only) 2 Constant thickness 3 Marking of identity block 4 Marking of manufacturers monogram Figure 1 Ramax 3,2
20、 0,3 0,1 Ramax 0,8 prEN 4808:2015 (E) 5 Table 1 Dimensional code a Nominal diameter Wall thickness of tube A B D E F G H J inch mm 0,05 +0,1 0 0,20 0,10 0,65 min max min max min A10 .625 15,875 0,711 28,50 31,30 19,60 13,80 27,95 2,80 3,05 3,00 3,90 11,60 B10 0,889 A12 .750 19,050 0,711 31,70 36,85
21、23,60 17,00 30,15 2,80 3,05 3,20 4,20 14,90 B12 0,889 A16 1.000 25,400 0,711 38,05 40,15 29,80 23,00 33,15 2,80 3,05 3,60 4,40 20,80 B16 0,889 A20 1.250 31,750 0,711 46,80 51,30 36,30 28,90 38,75 3,05 3,20 4,00 4,90 26,75 B20 0,889 A24 1.500 38,100 0,711 53,90 54,65 42,40 34,85 43,55 3,30 3,45 4,40
22、5,40 31,50 B24 0,889 A28 1.750 44,450 0,711 60,30 59,95 49,30 40,80 47,85 3,55 3,70 4,80 5,70 37,10 B28 0,889 A32 2.000 50,800 0,711 69,80 65,40 55,60 46,75 52,15 3,55 3,70 5,20 6,10 42,50 B32 0,889 Dimensional code a Nominal diameter Wall thickness of tube L M N R1 x1 x2 V Mass b inch mm 0,20 0,1 0
23、,8 0,125 A10 .625 15,875 0,711 19,60 1,0 3,3 0,625 0,20 0,10 EN4549A010 67,5 B10 0,889 EN4549B010 A12 .750 19,050 0,711 23,60 1,0 3,3 0,625 0,20 0,10 EN4549A012 97,1 B12 0,889 EN4549B012 A16 1.000 25,400 0,711 29,80 1,0 3,3 0,625 0,20 0,10 EN4549A016 148,5 B16 0,889 EN4549B016 A20 1.250 31,750 0,711
24、 36,30 1,0 3,3 0,625 0,20 0,10 EN4549A020 251,4 B20 0,889 EN4549B020 A24 1.500 38,100 0,711 42,40 1,0 3,3 0,625 0,20 0,10 EN4549A024 348,2 B24 0,889 EN4549B024 A28 1.750 44,450 0,711 49,30 1,0 3,3 0,625 0,20 0,10 EN4549A028 470,7 B28 0,889 EN4549B028 A32 2.000 50,800 0,711 55,60 1,0 3,3 0,625 0,20 0
25、,10 EN4549A032 625,1 B32 0,889 EN4549B032 a This code is composed with the following elements: Tube wall thickness code (A: 0,711 mm; B: 0,889 mm); Nominal diameter given in 16th of inches within 2 digit. b Mass quoted in kg/1 000 parts. prEN 4808:2015 (E) 6 4 Designation EXAMPLE Description block C
26、OUPLING, ELBOW 90, WELD Identity block EN4808-A10 Number of this standard Dimensional code (see Table 1) NOTE If necessary, the code I9005 shall be placed between the description block and the identity block. 5 Identification marking EN 2424, category A, as indicated on Figure 1. 6 Technical specification See EN 4814. 7 Quality Assurance Approval of the manufactures See EN 9100
