1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 07 28 N-STATUS No Replacement Named Y. Bankowski, NA 2005 01 14 Revised Inserted 3.0; Deleted 3.7, 3.8 & 4 1968 10 28 Released AY1-290 Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 1 of 1 NYLON COPOLYM
2、ER, EXTRUSION GRADE ESB-M4D278-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a plasticized, heat stabilized, nylon copolymer, extrusion resin, normally used for flexible tubing and/or cable jacketing. 2. APPLICATION This specification was released originally
3、for material used for extrusion coatings, such as the one used on the support cables for station wagon tailgates. NOTICE: This material absorbs and retains moisture. Part design and tolerances must accommodate changes in part dimensions and physical properties due to moisture absorption or loss in t
4、he service/assembly environment. Information on this material with respect to moisture should be obtained from the responsible PEO Materials Engineering Department. Some information is included in para 5.0, General Information. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Mater
5、ial suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.1 COLOR Black or as specified on engineering drawing 3.2 SPECIFIC GRAVITY 1.12 - 1.16 (ASTM D 792) 3.3 TENSILE STRENGTH AT BREAK, min 7,000 psi (48.3 MPa) (ASTM D 638, Spe
6、ed “C“) 3.4 ELONGATION AT BREAK, min 250% (ASTM D 638) 3.5 MELTING POINT, min 204 C (FLTM BO 021-02) 3.6 FLEXURAL MODULUS, max 75,000 psi (517 MPa) (ASTM D 790) 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 IMPACT STRENGTH, Izod No break (ASTM D 256, notched, 1/8 in (3.2 mm) sample width)
