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 300 (2068) Tensile Strength, 75 (517) Tensile Modulus1. SCOPE:1.1 Form: This specification covers one type of continuous multifilament carbon fibers in the form of a tow or yarn (when
5、 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 fiber, derived from a pitch precursor, with typical 300 ksi (2068 MPa) tensile strength and 75 Msi (517 GPa) tensil
6、e modulus for use in general purpose structural composites requiring very high modulus of elasticity and moderately high tensile strength.2. APPLICABLE DOCUMENTS: See AMS 3892.3. TECHNICAL REQUIREMENTS: 3.1 Basic Specification: The complete requirements for procuring the carbon tow or yarn described
7、 herein shall consist of this document and the latest issue of the basic specification. 3.2 Storage Life: The product shall be readily strippable from the spool and the filaments spreadable when tested at any time up to six months from date of receipt by purchaser provided it has been stored at room
8、 temperature in the original closed container.AEROSPACE MATERIAL SPECIFICATIONAMS 3892/4BIssued JUN 1974Revised OCT 1992Reaffirmed MAY 2005Superseding AMS 3892/4ACopyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license fr
9、om IHS-,-,-AMS 3892/4B SAE AMS 3892/4B- 2 -3.3 Properties: Shall conform to the requirements shown in Table 1. The requirements of 3.3.1 and 3.3.2 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 specified
10、 minimum average unless due to an obvious testing problem, in which case a substitute specimen may be tested:4. QUALITY ASSURANCE PROVISIONS: See 3892.5. PREPARATION FOR DELIVERY: See AMS 3892.6. ACKNOWLEDGMENT: See AMS 3892.7. REJECTIONS: See AMS 3892.TABLE 1 - PropertiesParagraph Property Requirem
11、ent3.3.1 Tensile Strength, minimum 250 ksi (1724 MPa)3.3.2 Tensile Modulusminimum 75 Msi (517 GPa)3.3.3 Mass per unit length Preproduction Value 5%3.3.4 Finish Content, maximum 2% by weight3.3.5 Density 0.071 to 0.075 pound per cubic inch(1.96 to 2.08 g/cm3)3.3.6 Yarn Twist (when applicable),nominal
12、maximum0.7 turn per inch (26 turns/m)1.0 turn per inch (38 turns/m)Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AMS 3892/4B SAE AMS 3892/4B- 3 -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-,-,-
