1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 08 12 N-STATUS No Replacement Named C. Mracna, NA 2004 06 28 Revised Para 3.0 inserted; para 3.3, 3.4 & 4 deleted 1963 12 10 Released F6-1175 (Was SF-M2DX1) E. J. Duda Printed copies are uncontrolled Copyright 2009, Ford Global Technologi
2、es, LLC Page 1 of 2 FLUOROSILICONE RUBBER, 50 DUROMETER “A“ ESF-M2D129-A HARDNESS NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a fluorosilicone rubber that has excellent solvent resistance over a wide temperature range. 2. APPLICATION This specification was re
3、leased originally for material used for carburetor valves. 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 TEST SLABS, Original Properties 3.1.1
4、Tensile Strength, min 750 psi (ASTM D 412, Die “B“) (5.2 MPa) 3.1.2 Elongation, min 140% (ASTM D 412, Die “B“) 3.1.3 Hardness, Durometer “A“ 50 - 65 (ASTM D 2240) 3.1.4 Compression Set, max 30% (ASTM D 395 - Method “B“, plied, 22 h at 150 C) Volume Change, max 25% 3.1.5 Immersion in ASTM Reference F
5、uel “C“ (ASTM D 471, 24 h at 23 +/- 2 C) Volume Change, max 25% 3.2 FINISHED PART 3.2.1 Hardness, Micro 45 - 60 IRHD (ASTM D 1415 or ISO 48 whichever applies) Area to be tested and method to be used must be agreed upon by supplier and the affected product engineering offices. ENGINEERING MATERIAL SP
6、ECIFICATIONESF-M2D129-A Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 2 of 2 3.2.2 Immersion in ASTM Reference Fuel “C“ (ASTM D 471, 70 h at 23 +/- 2 C) Hardness Change -18 to 0 IRHD Volume Change 0 to +25% 3.2.3 Immersion in 65/35 Methanol and Iso-octane (ASTM D 471, 24 h at 23 +/- 2 C) Hardness Change -18 to 0 IRHD Volume Change 0 to +25%
