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 2004 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.orgPolyamide-Imide Bar, Rod, and Shapes12% Graphite - 3% Polytetrafluoroethylene Filled1. SCOPE:1.1 Form: This specification covers a polyamide-imide plastic filled with graphite and polytetrafluoroethylene (PTFE) in the form of molded or e
5、xtruded bar, rod, and shapes.1.2 Application: These products have been used typically for parts requiring low coefficient of friction, wear resistance, thermal resistance, and toughness up to 250 C (482 F), but usage is not limited to such applications.2. APPLICABLE DOCUMENTS: See AMS 3670.3. TECHNI
6、CAL REQUIREMENTS: 3.1 Basic Specification: The complete requirements for procuring the product described herein shall consist of this document and the latest issue of the basic specification, AMS 3670.3.2 Material: Shall be a molded, polyamide-imide polymer filled with 12% 3 by weight graphite and 3
7、% 1 by weight polytretrafluoroethylene (PTFE).AEROSPACE MATERIAL SPECIFICATIONAMS 3670/3BIssued JAN 1981Revised APR 1995Reaffirmed JUN 2004Superseding AMS 3670/3AAMS 3670/3B SAE AMS 3670/3B- 2 -3.3 Properties: The product shall conform to the requirements shown in Table 1, determined on injection-mo
8、lded, post-cured test specimens and in accordance with specified test methods. Specimens for elevated temperature tests shall be held at the test temperature for not less than 30 minutes prior to testing. Values for tensile strength, elongation, flexural strength, and compressive strength shall be r
9、eported as the average of three determinations for each test; no individual value shall be less than 90% of the minimum average value specified.4. QUALITY ASSURANCE PROVISIONS: See AMS 3670.5. PREPARATION FOR DELIVERY: See AMS 3670.6. ACKNOWLEDGMENT: See AMS 3670.TABLE 1 - PropertiesProperty Require
10、ment Test Method3.3.1 Color3.3.2 Tensile Strength, min averageAt 23 C 1 (73 F 2)At 250 C 5 (482 F 9)3.3.3 Elongation, min averageAt 23 C 1 (73 F 2)3.3.4 Flexural Strength, min averageAt 23 C 1 (73 F 2)At 250 C 5 (482 F 9)3.3.5 Compressive Strength, min averageAt 23 C 1 (73 F 2)3.3.6 Specific Gravity
11、 at 23/23 C (73/73 F)Black, as approved on preproduction sample16.5 ksi (114 MPa)5000 psi (34.5 MPa)5%23.0 ksi (159 MPa)5000 psi (34.5 MPa)18.0 ksi (124 MPa)1.43 to 1.48ASTM D 1708ASTM D 1708ASTM D 790or ASTM D 790MASTM D 695 orASTM D 695MASTM D 792Method AAMS 3670/3B SAE AMS 3670/3B- 3 -7. REJECTIONS: See AMS 3670.8. NOTES: See AMS 3670.PREPARED UNDER THE JURISDICTION OF AMS COMMITTEE “P”
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