1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2009 11 19 N-STATUS No replacement named J. Crist, NA 1978 10 30 Metricated, Renumbered and Retyped CAH1-RD572066-155 1976 10 05 Released AG1-6000-73 Page 1 of 3 POLYPROPYLENE, 40% CALCIUM CARBONATE FILLED E
2、SB-M4D365-A2 EXTRUSION GRADE- STAMPABLE ESB-M4D365-B2 NOT TO BE USED FOR NEW DESIGN 1. SCOPE: The material defined by this specification is a 40% calcium carbonate filled high molecular weight polypropylene extrusion compound. The material is extruded into parts or extruded into sheet form for subse
3、quent stamping or vacuum forming operations. 2. APPLICATION: This specification was released originally for materials used in dash panel wiring covers. 3. REQUIREMENTS: 3.1 COLOR Black, unless otherwise specified on engineering drawing 3.2 MECHANICAL PROPERTIES Injection Molded Extruded Sheet Test S
4、pecimens or Parts 3.2.1 Specific Gravity 1.18 - 1.28 1.18 - 1.28 (ASTM D 792) 3.2.2 Filler Content, % 40 - 44 40 - 44 (ASTM D 2584, except calculate % ash divided by 0.56, 4 h minimum at 730 +/- 28 C) 3.2.3 Tensile Strength at Max Load, 3300 (22.8) 3000 (20.7) psi (MPa), min (ASTM D 638, Speed “C“)
5、Elongation at Break, % min 60 200 3.2.4 Hardness - Rockwell “R“, min 80 80 (ASTM D 785) 3.2.5 Flexural Modulus, psi (GPa), min 3.0 x 105(2.1) 2.5 x 105(1.8) (ASTM D 790, 1/8 in (3.2 mm) specimen width) 3.2.6 Impact Strength, Izod, ft-lb/in (J/m), min (ASTM D 256, 1/8 in (3.2 mm) specimen width) Notc
6、hed 0.5 (27) 0.5 (27) Unnotched 15.0 (801) 10.0 (534) ENGINEERING MATERIAL SPECIFICATION ESB-M4D365-A2 ESB-M4D365-B2 Page 2 of 3 Injection Molded Extruded Sheet Test Specimens or Parts 3.2.7 Deflection Temperature, C min (ASTM D 648, 1/8 in (3.2 mm) specimen width) At 66 psi (455 kPa) 110 110 At 264
7、 psi (1820 kPa) 60 60 3.2.8 Flow Rate, g/10 min 0.2 - 0.6 0.2 - 0.6 (ASTM D 1238, Condition “L“) 3.3 FINISHED PART 3.1.1 Infrared Spectrophotometry Ford Motor Company, at its option, may conduct infrared analysis of material/parts supplied to this specification. The curves established for initial ap
8、proval shall constitute the reference standard and shall be kept on file at Central Laboratory. All samples shall produce curves that correspond to the reference standard when tested under the same conditions as those specified on the master curve. 3.3.2 Impact Resistance As shown on engineering dra
9、wing Test Method: Gardner impact unit (Model 10-1120) with 2.00 in (51 mm) hemispherical impact head. Minimum impact values at room temperature and at -29 C shall be established for each individual part by the responsible design engineer as required. 3.3.3 Heat Resistance Finished parts must pass th
10、e following test: Test Method: Condition assembled and/or unassembled parts in simulated car position for 1 h at 121 +/- 3 C in a mechanical air circulating oven. After removal the parts shall show no more than 0.20% shrinkage, or shall there be any local shrinkage which will interfere with assembly
11、 to mating parts. The parts shall no warp to an extent that would affect its use in the ultimate assembly. 3.4 ESB-M4D365-B2 FLAMMABILITY, max 4 in (101 mm)/min (FLTM BN 24-2, without the lot sampling plan) In addition, the test specimen shall not exhibit any flashing or sudden flaming on either sur
12、face in excess of the above maximum value. ENGINEERING MATERIAL SPECIFICATION ESB-M4D365-A2 ESB-M4D365-B2 Page 3 of 3 3.5 ESB-M4D365-A2 FLAMMABILITY 3.5.1 In order to comply with Federal Motor Vehicle Safety Standard No. 302, the materials, portions of components, and composites shall not burn, or t
13、ransmit flame across its surface, at a rate of more than 4 in (101 mm) per minute. To demonstrate compliance, the sample size and method of testing shall be in accordance with FLTM BN 24-2. 3.5.2 Performance - Environmental Aging All materials, portions of components, and composites defined by this
14、specification that have not been treated, modified or reformulated and exceed a maximum burn rate of 3.0 in (76 mm) per minute as specified by the Flammability Lot Sampling Plan of FLTM BN 24-2, must be evaluated for permanency of the materials flame retardant properties per ESB-M25P3-A according to
15、 the accelerated environment aging requirements applicable to the basic material category of this particular specification. Any material, portions of components, and composites defined by this specification that have been treated, modified or reformulated to conform to Flammability Lot Sampling Plan
16、 of FLTM BN 24-2, regardless of maximum burn rate, must be evaluated for both permanency of materials flame retardant properties and changes in mechanical, chemical and physical properties per ESB-M25P3-A applicable to the basic materials category of this particular specification. 3.5.3 Flammability
17、 Test Program Materials, portions of components, and composites governed by this specification must also comply with the requirements of ES-D3AB-11014-AA. 3.6 SUPPLIERS RESPONSIBILITY Material supplied to this specification must be equivalent to that originally approved. Changes in formulation or pr
18、ocessing shall not be made without prior approval as describe in Supplier Procedure I-A. 4. APPROVAL OF SUPPLIERS: Suppliers to this specification must be approved by the affected product engineering office. Procedure for gaining approval of a specific material to a new/existing ES-M specification is contained in Supplier Procedure I-A. Approved new suppliers will be added to the Engineering Materials Approved Source List.
