1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2006 05 02 N-STATUS Replaced by WSK-M4D666-A A. Reaume/M. Masserant 2005 05 27 Revised Inserted 3.0; Deleted 3.2.4, 3.3 & 4 1977 05 06 Released CAG2-950145-C1 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1
2、 of 2 NYLON (TYPE 6/6), MODIFIED - HIGH IMPACT GRADE ESA-M4D379-A NYLON (TYPE 6/6), MODIFIED - HEAT STABILIZED ESA-M4D379-B HIGH IMPACT GRADE NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by these specifications is a high impact grade nylon. 2. APPLICATION These specifications were rel
3、eased originally for materials used as the disc brake air scoops. 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 STOCK MATERIAL 3.1.1 Specific G
4、ravity 1.06 - 1.10 (ASTM D 792) 3.1.2 Melting Point, min 250 C (ASTM D 789) 3.1.3 Tensile Strength, min 48 MPa (ASTM D 638, 23 C, dry as molded) 3.1.4 Elongation at Break, min 40% (ASTM D 638, 23 C, dry as molded) 3.1.5 Impact Strength, Izod, min (ASTM D 256) At 23 C, dry as molded, unnotched No bre
5、ak At 23 C, dry as molded, notched 800 J/m At -40 C, unnotched No break At -40 C, notched 100 J/m 3.1.6 Flexural Modulus, min 1.55 GPa (ASTM D 790, 23 C, dry as molded) 3.1.7 Hardness - Rockwell “R“ 105 - 113 (ASTM D 785, 23 C, dry as molded) ENGINEERING MATERIAL SPECIFICATIONESA-M4D379-A/BPrinted copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 2 3.2 MOLDED PART 3.2.1 Melting Point, min 250 C (ASTM D 789) 3.2.2 Specific Gravity 1.06 - 1.10 (ASTM D 792) 3.2.3 Moisture Content 1.0 - 1.3% (TGA)
