1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 10 12 N-STATUS Replaced by ESB-M4D308-A; Inserted 3.0; Deleted 3.7, 4 R. Lord 1979 01 10 Metricated, Renumbered & Retyped CAH2823385 1969 01 08 Revised & Retyped CAX2-917090 Printed copies are uncontrolled Copyright 2006, Ford Global Tec
2、hnologies, LLC Page 1 of 2 POLYPROPYLENE, GENERAL PURPOSE - EXTRUSION GRADE ESA-M4D190-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a polypropylene molding compound suitable for extrusion, blow molding, or vacuum forming processing methods. 2. APPLICATION Th
3、is specification was released originally for materials used for extruded items such as jacketing in accelerator linkage cable assemblies. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Mate
4、rial suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.1 MOLDED TEST SPECIMEN (ASTM D 2146) 3.1.1 Specific Gravity 0.900 - 0.910 (ASTM D 792) 3.1.2 Flow Rate, max 1.5 g/10 min (ASTM D 1238, Condition “L“) 3.1.3 Tensile Streng
5、th, at max load, min 4500 psi (31.0 MPa) (ASTM D 638, Speed “C“) Elongation, at max load, min 8.0% 3.1.4 Flexural Modulus, min 180 000 psi (1.2 GPa) (ASTM D 790, Procedure “B“) 3.1.5 Impact Strength, Izod, min (ASTM D 256, specimen to be 2 in (50 mm) center section of Type I or III tensile bar.) Not
6、ched 1.0 ft lb/in (53 J/m) Unnotched 20 ft lb/in (1070 J/m) ENGINEERING MATERIAL SPECIFICATION ESA-M4D190-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 2 3.1.6 Deflection Temperature, min (ASTM D 648, 1/2 x 1/8 in (12.7 x 3.2 mm) specimen) At 66 psi (455 k
7、Pa) 93 C At 264 psi (1820 kPa) 52 C 3.2 MOLDED PARTS 3.2.1 Specific Gravity 0.900 - 0.910 (ASTM D 792) 3.2.2 Flow Rate, max 1.5 g/10 min (ASTM D 1238, Condition “L“) 3.2.3 Melting Point, min 160 C (FLTM BO 021-02) 3.3 PHYSICAL PROPERTIES Additional physical properties of the molded part such as thos
8、e below may be specified on engineering drawing or in engineering performance specification when required. 3.4 COLOR As specified on engineering drawing 3.5 WATER ABSORPTION, max 0.03% (ASTM D 570, 24 h immersion) 3.6 COLD FLEXIBILITY No cracking Test Method: Cut from the part 3 specimens 0.5 in (13
9、 mm) wide at least 4 in (100 mm) long, and 0.100 - 0.140 in (2.5 - 3.5 mm) thick. If it is not feasible to obtain samples from the part, type I or III tensile bars may be used. Condition the specimen at -40 +/- 1 C for 4 h in a cold chamber. Without removing from chamber, bend the specimens 180 over a temperature conditioned mandrel having a 3/4 in (19 mm) diameter. The bending shall be accomplished within 5 s.
