1、BS ISO 8575:2016 Aerospace Fluid systems Hydraulic system tubing BSI Standards Publication WB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 8575:2016 BRITISH STANDARD National foreword This British Standard is the UK implementation of ISO 8575:2016. The UK participation in its preparat
2、ion was entrusted to Technical Committee ACE/69, Aerospace hydraulic systems, fluids and components. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are r
3、esponsible for its correct application. The British Standards Institution 2016. Published by BSI Standards Limited 2016 ISBN 978 0 580 86676 0 ICS 49.080 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the S
4、tandards Policy and Strategy Committee on 30 November 2016. Amendments/corrigenda issued since publication Date T e x t a f f e c t e dBS ISO 8575:2016 ISO 2016 Aerospace Fluid systems Hydraulic system tubing Srie arospatiale Systmes de fluides Tubes pour systmes hydrauliques INTERNATIONAL STANDARD
5、ISO 8575 Second edition 2016-11-15 Reference number ISO 8575:2016(E)BS ISO 8575:2016ISO 8575:2016(E)ii ISO 2016 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utiliz
6、ed otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright
7、 office Ch. de Blandonnet 8 CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyrightiso.org www.iso.orgBS ISO 8575:2016ISO 8575:2016(E)Foreword iv Introduction v 1 Scope . 1 2 Normative references 1 3 T erms and definitions . 1 4 Requirements 1 4.1 General . 1
8、 4.2 Pressure lines . 2 4.2.1 Tubing material . 2 4.2.2 Tube sizes . 2 4.2.3 Qualification . 2 4.3 Suction and return lines 2 4.3.1 Tubing Material . 2 4.3.2 Tube sizes . 2 Annex A (informative) Aerospace hydraulic tubing materials 8 Bibliography 9 ISO 2016 All rights reserved iii Contents PageBS IS
9、O 8575:2016ISO 8575:2016(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body intereste
10、d in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Com
11、mission (IEC) on all matters of electrotechnical standardization. The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents
12、 should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible f
13、or identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents). Any trade name used in this document is information given for the
14、 convenience of users and does not constitute an endorsement. For an explanation on the meaning of ISO specific terms and expressions related to conformit y assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TB
15、T) see the following URL: www.iso.org/iso/foreword.html. The committee responsible for this document is ISO/TC 20, Aircraft and space vehicles, Subcommittee SC 10, Aerospace fluid systems and components. This second edition cancels and replaces the first edition (ISO 8575:1990), which has been techn
16、ically revised.iv ISO 2016 All rights reservedBS ISO 8575:2016ISO 8575:2016(E) Introduction The purpose of this document is to provide information relating to the sizes and materials of tubing for use in aerospace hydraulic pressure and return and suction lines. International Standards use the Inter
17、national System of units (SI); however, large segments of the aerospace industry make use of other measurement systems as a matter of common working practice. Although tube sizes were originally defined (and are frequently cited) using non-SI units, all dimensions used in this document are given in
18、SI units, with inch units also indicated for the convenience of the user. The decimal sign used in International Standards is the comma (“,”); however, the comma is not used in common working practice for inch dimensions. Therefore, in common with many other aerospace standards, the decimal point is
19、 used in this document when providing dimensions in inches. NOTE The use of non-SI units and the decimal point in this document does not constitute general acceptance of measurement systems other than SI within International Standards. ISO 2016 All rights reserved vBS ISO 8575:2016BS ISO 8575:2016Ae
20、rospace Fluid systems Hydraulic system tubing 1 Scope This document provides information relating to the sizes and materials of tubing for use in aerospace hydraulic pressure and return and suction lines. For pressure lines, the requirements apply to the pressure and temperature ranges covered by pr
21、essure class D, E and J and temperature type 13 and type 20 as specified in ISO 6771. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited app
22、lies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 8574, Aerospace Hydraulic system tubing Qualification tests for bent tubes ISO 6771, Aerospace Fluid systems and components Pressure and temperature classifications 3 T erms a nd defin
23、iti ons For the purposes of this document, the following terms and definitions apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/ /www.electropedia.org/ ISO Online browsing platform: available at http:/ /w
24、ww.iso.org/obp/ 3.1 inch tubing tubing diameters and wall thickness in fractional inch increments and based on industry standards 3.2 metric tubing tubing diameters and wall thickness in SI-metric units Note 1 to entry: Metric tubing is in compliance with ISO 2964. 4 Requirements 4.1 General The pip
25、e dimensions quoted are in common use for the stated materials in the different pressure and temperature classes. Inclusion of a dimension under a pressure and temperature class in this document does not constitute a guarantee of fitness for purpose in all circumstance. Aircraft Systems designers sh
26、ould verify each tube assembly application with the appropriate stress authority. INTERNATIONAL ST ANDARD ISO 8575:2016(E) ISO 2016 All rights reserved 1BS ISO 8575:2016ISO 8575:2016(E) 4.2 Pressure lines 4.2.1 Tubing material Material for tubing used in hydraulic system pressure line shall be in ac
27、cordance with Table 1 and shall conform to the appropriate physical properties specified in Table 1. 4.2.2 Tube sizes The outside diameters, wall thicknesses and materials of tubing used in the manufacture of tube assemblies shall conform, where applicable, to the relevant requirements given in Tabl
28、e 2 or Table 3 for inch tubing and Table 4 or Table 5 for metric tubing. Where no wall thickness is shown in the tables for a particular combination of tube outside diameter and material and it is desired to use that combination, a suitable wall thickness shall be selected and verified by testing in
29、 accordance with ISO 8574. 4.2.3 Qualification Tubing having outside diameters, wall thicknesses and materials as specified in Table 2 and Table 3 shall have been verified by testing in accordance with the requirements of ISO 8574. 4.3 Suction and return lines 4.3.1 Tubing Material Materials for tub
30、ing used in hydraulic system suction and return lines may be as given in Table 1 and verified in accordance with ISO 8574 or at the discretion of the aircraft designer. 4.3.2 Tube sizes Unless otherwise specified, the outside diameters for inch tubing used in suction and return lines shall be select
31、ed from those specified in Table 2 or Table 3 for inch tubing, and from Table 4 or Table 5 for metric tubing. The corresponding wall thicknesses shall be selected and verified in accordance with Table 2 to Table 5 or at the discretion of the aircraft designer.2 ISO 2016 All rights reservedBS ISO 857
32、5:2016ISO 8575:2016(E) Table 1 Tubing materials Material Ultimate tensile strength Yield strength Percent elongation A min. Code no. Description R mmin. MPa min. (psi) R p0,2 min. MPa min. (psi) % 1 Cold worked corro- sion resistant steel 304-1/8H 725 (105 000) 515 (75 000) 20 2 High strength corros
33、ion resistant steel 21-6-9 980 (142 000) 825 (120 000) 20 3 Re-annealed corro- sion resistant steel UNS S32100 500 (72 500) 210 (30 500) 40 4 Cold-worked and stress relieved 860 (125 000) 720 (105 000) 10 5 titanium Ti-3AL-2.5V 690 (100 000) 655 (95 000) 14 6 Unalloyed titanium TiCP 350 (50 000) 250
34、 (35 000) 28 7 Aluminium alloy (6061), Solution treated and artificially aged (T6) 290 (42 000) 240 (34 000) 10 NOTE While waiting for the publication of International Standards for the materials described in Table 1, national standards accepted by the corresponding country conforming to the require
35、ments specified in this table are given in Annex A for information. ISO 2016 All rights reserved 3BS ISO 8575:2016ISO 8575:2016(E)Table 2 Outside diameters, wall thicknesses and materials for hydraulic tubing, pressure lines Inch tubing Temperature a Type 13 -65 F to 275 F (-55 C to 135 C) Pressure
36、class aDesign-Operating-Pressure (DOP) Class D 21 000 kPa (3 000 psi) Class J 35 000 kPa (5 000 psi) Material code no. 1 2 4 or 5 4 or 5 Material designation 304-1/8H 21-6-9 Ti-3AL-2.5V Ti-3AL-2.5V Tube outside diameter Tube wall thickness Tube wall thickness Type A Type B Dash size mm (inch) mm (in
37、ch) mm (inch) mm (inch) mm (inch) mm (inch) 4 6,35 (.250) 0,51 .020 0,41 (.016) 0,41 (.016) 0,64 (.025) 0,55 (.022) 6 9,525 (.375) 0,71 .028 0,51 (.020) 0,48 (.019) 0,76 (.030) 0,81 (.032) 8 12,70 (.500) 0,89 .035 0,66 (.026) 0,66 (.026) 1,02 (.040) 1,09 (.043) 10 15,875 (.625) 1,24 .049 0,84 (.033)
38、 0,81 (.032) 1,27 (.050) 1,37 (.054) 12 19,05 (.750) 1,47 .058 0,99 (.039) 0,99 (.039) 1,50 (.059) 1,65 (.065) 16 25,4 (1.000) 1,65 .065 1,32 (.052) 1,32 (.051) 2,01 (.079) 2,23 (.088) 20 31,75 (1.250) 1,78 (.070) 1,78 (.070) 2,49 (.098) 2,67 (.105) 24 38,1 (1.500) 3,18 (.125) 32 50,8 (2,000) aTempe
39、rature and pressure classes according to ISO 6771. 4 ISO 2016 All rights reservedBS ISO 8575:2016ISO 8575:2016(E)Table 3 Outside diameters, wall thicknesses and materials for hydraulic tubing, suction and return lines Inch tubing Temperature a Type 13 -65 F to 275 F (-55 C to 135 C) Pressure class a
40、Design-Operating-Pressure (DOP) Class N/A b1 500 kPa (220 psi) Class N/A b1 500 kPa (220 psi) Class A 4 200 kPa (600 psi) Class N/A or B b7 000 or 10 500 kPa c(1 000 or 1 500 psi) c Class A or N/A b4 200 or 7 000 KPa c(600 or 1 000 psi) c Material code no. 3 7 2 Material designation UNS S32100 6061-
41、T6 21-6-9 Tube outside diameter Tube wall thickness Tube wall thickness Tube wall thickness Dash size mm (inch) mm (inch) mm (inch) mm (inch) mm (inch) mm (inch) 4 6,35 (.250) 0,89 (.035) 6 9,525 (.375) 0,89 (.035) 8 12,70 (.500) 0,89 (.035) 10 15,875 (.625) 0,89 (.035) 12 19,05 (.750) 0,89 (.035) 1
42、6 25,4 (1.000) 1,22 (.048) 20 31,75 (1.250) 0,89 (.035) 1,24 (.049) 1,52 (.060) 0,61 (.024) 24 38,1 (1.500) 0,89 (.035) 1,24 (.049) 1,85 (0,73) 0,61 (.024) 32 50,8 (2,000) 0,71 (.028) aTemperature and pressure classes according to ISO 6771. bNo pressure class definition in ISO 6771 at the time of th
43、e preparation of this document, N/A: Not applicable. cUsed for different DOPs. ISO 2016 All rights reserved 5BS ISO 8575:2016ISO 8575:2016(E)Table 4 Outside diameter, wall thicknesses, and materials for hydraulic tubing pressure and return lines Metric tubing Temperature a Type 13 b-55 C to 135 C (-
44、 65 F to 275 F) Pressure a Class H 14 000 kPa (2 000 psi) Class D 21 000 kPa (3 000 psi) Class E 28 000 kPa (4 000 psi) Material code no. 1 2 4 1 2 4 2 4 6 Material designation 304-1/8H 21-6-9 Ti-3AL-2.5V 304-1/8H 21-6-9 Ti-3AL-2.5V 21-6-9 Ti-3AL-2.5V TiCP Tube outside diameter Tube wall thickness T
45、ube wall thickness Tube wall thickness DN Size mm (inch) mm (inch) mm (inch) mm (inch) mm (inch) mm (inch) mm (inch) mm (inch) mm (inch) mm (inch) DN05 5 (.196) (0,4) c0,5 (.015) (.019) 0,4 (.015) 0,4 (.015) 0,4 (.015) 0,6 (.023) (0,4) c0,5 (.015) (.019) DN06 6 (.236) (0,4) c0,5 (.015) (.019) 0,5 (.
46、019) 0,4 (.015) 0,4 (.015) 0,6 (.023) 0,5 (.019) 0,8 (.031) DN08 8 (.314) (0,4) c0,5 (.015) (.019) 0,5 (.019) 0,5 (.019) 0,5 (.019) 0,8 (.031) 0,6 (.023) 0,9 (.035) DN10 10 (.393) 0,5 (.019) 0,7 (.028) 0,5 (.019) 0,5 (.019) 0,8 (.031) 0,8 (.031) 1,2 (.047) DN12 12 (.472) 0,5 (.019) 0,8 (.031) 0,7 (.
47、028) 0,7 (.028) 0,9 (.035) 0,9 (.035) 1,4 (.055) DN14 14 (.551) 0,5 (.019) 1,0 (.039) 0,8 (.031) 0,8 (.031) 1,0 (.039) 1,6 (.063) DN16 16 (.660) 0,6 (.023) 1,0 (.039) 1,0 (.039) 0,8 (.031) 1,2 (.047) 1,2 (.047) 1,8 (.071) DN18 18 (.709) 0,7 (.028) 1,3 (.051) DN20 20 (.787) 0,7 (.028) 1,5 (.059) 1,0
48、(.039) 1,0 (.039) 1,5 (.059) 1,5 (.059) DN22 22 (.866) 0,8 (.031) 1,2 (.047) 1,6 (.063) DN25 25 (.984) 0,9 (.035) 1,6 (.063) 1,3 (.051) 1,3 (.051) 1,9 (.075) 1,8 (.071) DN28 28 (1.102) 1,0 (.031) 1,6 (.063) 2,0 (.078) DN32 32 (1.260) 1,2 (.039) 2,2 (.087) 1,8 (.071) 2,2 (.087) 2,2 (.087) aTemperatur
49、e and pressure classes according to ISO 6771. bFor higher temperature (Type 20), refer to Table 5. cValues in ( ) are based on calculation only. Values below 0,5 mm wall thickness are critical due to manufacturing reason. 6 ISO 2016 All rights reservedBS ISO 8575:2016ISO 8575:2016(E) Table 5 Outside diameter
