ISO INTERNATIONAL STANDARD 18487-1 First edition 2017-04 Aerospace series Titanium tube for 35 MPa operating pressure - Part 1: Inch series Série aérospatiale—Tubes en titanePression de service:35 MPa - Partie 1: Série en inches Reference number ISO 18487-1:2017(E) os1 International Organization for Standardization @ IS0 2017 =ZHEJIANG INST OF STANDARDIZATION C1 5956617 ed without license from IHS IS0 18487-1:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2017, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISOcopyrightoffice Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org Internatinair PrganizationforStandardization icensee-ZHEJIANG INSTOF STANDARDIZAoISQ07 -All rights reserved Not for Resale, 2017/8/21 01:00:58 etworking permitted without license from IHS IS0 18487-1:2017(E) Contents Page Foreword ..iv Introduction. .. 1 Scope. 2 Normative references 3 Terms and definitions 4 Dimensions 5 Tolerances ..3 6 Technical requirements .3 6.1 General .3 6.2 Composition .3 6.3 Melting practice 3 6.4 Heattreatmentanddeliverycondition .3 6.5 Tensile properties. 3 6.6 Microstructure .4 6.6.1 General 4 6.6.2 Grainsize .4 6.6.3 Contractile strain ratio (CSR) 4 6.7 Surface condition and texture. 6.7.1 Surface treatment. 4 6.7.2 Surface condition 4 6.7.3 Surface texture, Ra 6.8 Ultrasonic inspection. 5 6.9 Flarability. 5 6.9.1 General .5 6.9.2 Surfacecontamination .5 6.10 Bending. 7 6.11 Flattening .7 6.12 Deformation under pressure test .7 6.13 Impulse pressure fatigue test. .8 6.13.1 General. .8 6.13.2 Proof test. .8 6.13.3 Pressure impulse test 6.13.4 Additional test. .11 6.13.5 Ultimate (as per CS 25.1435) and burst test ..11 7 Quality assurance ..12 8 Preparation for delivery. .12 8.1 Marking ..12 8.2 Packing. .12 Bibliography .13 iii See=ZHEJIANG INST OF STANDARDIZATION C1 5956617 ed without license from IHS Not for Resale, 2017/8/21 01:00:58