1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 10 13 N-STATUS Replaced by ESB-M4D308-A R. Lord 2005 01 27 Revised Removed Inactive ESB-M4D308-C; Inserted 3.0; Deleted 3.2, 3.6, 3.7 & 4 1981 03 20 Released ALI-6000-221 ESB-M4D308-B Printed copies are uncontrolled Copyright 2006, Ford
2、Global Technologies, LLC Page 1 of 2 POLYPROPYLENE, FOAMED EXTRUSION ESB-M4D308-B NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is an extruded foamed, hot stampable polypropylene. 2. APPLICATION This specification was released originally for material used for exte
3、rior items which are indirectly exposed to ultraviolet light such as fender splash shields. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.1 The b
4、ase resin used for this material shall be shown on the Corporate Approved Source List for the ESB-M4D308-A Specification. 3.3 PHYSICAL PROPERTIES Test specimens shall be die cut from foam extruded sheets and/or parts if feasible. 3.3.1 Color Off black 3.3.2 Flow Rate 1.0 - 3.6 g/ (ASTM D 1238, Condi
5、tion “L“) 10 minute 3.3.3 Melting Point, min 159 C (FLTM BO 021-02) 3.3.4 Specific Gravity 0.65 - 0.75 (ASTM D 792) 3.3.5 Tensile Strength at Yield, min 1,500 psi (10.3 MPa) (ASTM D 638, 2 in (50 mm/min) Elongation at Break, min 10% 3.3.6 Flexural Modulus, Tangent, min 90,000 (621 MPa) (ASTM D 790,
6、Procedure “A“ 0.2 in (5 mm/min) ENGINEERING MATERIAL SPECIFICATION ESB-M4D308-B Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 2 3.3.7 Impact Strength, Izod, min (ASTM D 256) Notched No break Unnotched No break 3.3.8 Water Absorption, max 0.08% (ASTM D 570, 2
7、4 h) 3.3.9 Impact Strength Gardner, min There shall be no indication of failure when impact tested as follows: . 46 in/lb (5.2 J) at 23 +/- 2 C . 6 in/lb (0.7 J) at -29 +/- 1 C Test Method: 4 x 4 x 0.060 in (100 x 100 x 1.5 mm) samples shall be impact tested at 23 C and at -29 C using a Gardner Impa
8、ct Unit (Model IG-1120) equipped with a 1/2 in (12.7 mm) hemispherical impact head with a 2 in (51 mm) diameter ring base. Samples can be obtained from either plaques or the part if possible. The low temperature test specimens shall be preconditioned at -29 C for 5 h minimum and subjected to the pre
9、scribed impact value within 5 s after removal from the cold chamber. A minimum of 10 samples at each temperature shall be tested. 3.4 PARTS Specific requirements for physical properties of parts shall be specified on engineering drawings and/or engineering part specifications. 3.5 FLAMMABILITY, max 4 in (101 mm) min (FLTM BN 024-02, without the lot sampling plan) In addition, the test specimen shall not exhibit any flashing or sudden flaming on either surface in excess of the above max value.
