1、SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirelyvoluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefro
2、m, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions.Copyright 2005 SAE InternationalAll rights reserved. No part of this publication may be
3、reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying,recording, or otherwise, without the prior written permission of SAE.TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada)Tel: 724-776-4970 (outside USA)Fax: 724-
4、776-0790Email: custsvcsae.orgSAE WEB ADDRESS: http:/www.sae.orgTow or Yarn, Carbon FibersFor Structural CompositesGF (0X) 400 (2758) Tensile Strength, 40 (276) Tensile Modulus1. SCOPE:1.1 Form: This specification covers one type of continuous multifilament carbon fibers in the form of a tow or yarn
5、(when twisted). The weight per unit length of the tow or yarn is governed by the filament count which is identified by the suppliers grade or material designation.1.2 Classification: Carbon tow or yarn, derived from a polyacrylonitrile precursor, with typical 400 ksi (2758 MPa) tensile strength and
6、40 Msi (276 GPa) tensile modulus for use in polyimide matrix structural composites or others which may be exposed to 315 C (599 F) thermal conditions in air and which require high tensile strength and moderate modulus of elasticity in tension.2. APPLICABLE DOCUMENTS: See AMS 3892.3. TECHNICAL REQUIR
7、EMENTS: 3.1 Basic Specification: The complete requirements for procuring the carbon tow or yarn described herein shall consist of this document and the latest issue of the basic specification. AEROSPACE MATERIAL SPECIFICATIONAMS 3892/8AIssued JUL 1984Revised OCT 1992Reaffirmed MAY 2005Superseding AM
8、S 3892/8Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AMS 3892/8A SAE AMS 3892/8A- 2 -3.2 Storage Life: The product shall be readily strippable from the spool and the filaments spreadable when test
9、ed at any time up to six months from date of receipt by purchaser provided it has been stored at room temperature in the original closed container.3.3 Oxidation Resistance: The fibers shall not undergo a weight loss exceeding 2.5% when exposed to 375 C 3 (707 F 5) for 24 hours 0.1 or 5% when exposed
10、 to 315 C 3 (599 F 5) for not less than 500 hours.3.4 Properties: Shall conform to the requirements shown in Table 1. The requirements of 3.4.1 and 3.4.2 apply to the average of the number of determinations indicated in the basic specification but no individual value shall be less than 90% of the sp
11、ecified minimum average unless due to an obvious testing problem, in which case a substitute specimen may be tested:TABLE 1 - PropertiesParagraph Property Requirement3.4.1 Tensile Strength, minimum 375 ksi (2586 MPa)3.4.2 Tensile Modulus,minimummaximum38 Msi (262 GPa)46 Msi (317 GPa)3.4.3 Mass per u
12、nit length PreproductionValue 5%3.4.4 Finish Content, maximum 2% by weight 3.4.5 Density 0.060 to 0.063 pound per cubic inch(1.66 to 1.74 g/cm3)3.4.6 Yarn Twist (when applicable),nominalmaximum0.4 turn per inch (15 turns/m)0.8 turn per inch (30 turns/m)Copyright SAE International Provided by IHS und
13、er license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AMS 3892/8A SAE AMS 3892/8A- 3 -4. QUALITY ASSURANCE PROVISIONS: See AMS 3892.5. PREPARATION FOR DELIVERY: See AMS 3892.6. ACKNOWLEDGMENT: See AMS 3892.7. REJECTIONS: See AMS 3892.8. NOTES:See AMS 3892.PREPARED UNDER THE JURISDICTION OF AMS COMMITTEE “P”Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
