1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2008 02 21 N-STATUS No Replacement Named; Inserted 3.0; Deleted 3.4 & 4 G. Kowalski 1979 01 10 Metricated and Retyped CAH2 823385 1964 05 12 Released AS2-459 Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 1
2、 of 2 NYLON, 20% GLASS FIBER REINFORCED ESA-M4D185-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a 20% glass fiber filled nylon molding compound. 2. APPLICATION This specification was released originally for material used for bearing applications in steering
3、linkages. 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 MOLDING COMPOUND 3.1.1 Specific Gravity 1.26 - 1.32 (ASTM D 792) 3.1.2 Fiberglass Conte
4、nt, by weight 18 - 22% 3.1.3 Melting Point, min 213 C (ASTM D 789) 3.2 MOLDED TEST SPECIMENS Note: Properties are applicable at room temperature and material being bone dry. 3.2.1 Specific Gravity 1.26 - 1.32 (ASTM D 792) 3.2.2 Fiberglass Content, by weight 18 - 22% 3.2.3 Melting Point, min 213 C (A
5、STM D 789) 3.2.4 Impact Strength, Izod, min 2.2 ft lb/in (117 J/m) (ASTM D 256, notched) ENGINEERING MATERIAL SPECIFICATION ESA-M4D185-A Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 2 of 2 3.2.5 Tensile Strength, min 15,000 psi (103 MPa) (ASTM D 638) Elongation
6、at Break, min 1.0% 3.2.6 Deflection Temperature, min (ASTM D 648) At 66 psi (455 kPa) 210 C At 264 psi (1820 kPa) 199 C 3.2.7 Flexural Modulus, min 700,000 psi (4.8 GPa) (ASTM D 790) 3.2.8 Flexural Strength, min 22,000 psi (152 MPa) (ASTM D 790) 3.3 MOLDED PART 3.3.1 Specific Gravity 1.26 - 1.32 (ASTM D 792) 3.3.2 Fiberglass Content, by weight 18 - 22% 3.3.3 Melting Point, min 213 C (ASTM D 789) 3.3.4 Hardness - Rockwell “M“, min 70
