1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2004 09 27 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.13 & 4 1991 08 09 Suffix A2 added C10155130 B Hennessey1990 08 07 Final Release C10087615 B HennesseyPrinted copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 1
2、 of 3 FLUOROELASTOMER (FKM), OXYGENATED/OXIDIZED WSD-M2D440-A FUEL RESISTANT, METHANOL RESISTANT, 80 IRHD HARDNESS FLUOROELASTOMER (FKM), OXYGENATED/OXIDIZED WSD-M2D440-A2 FUEL RESISTANT, METHANOL RESISTANT, 70 IRHD HARDNESS 1. SCOPE The materials described by these specifications are 80 IRHD (Suffi
3、x A) and 70 IRHD (Suffix A2) fluoroelastomer (FKM) materials with excellent resistance to fuels, especially those containing methanol at levels up to 100% by volume (Flexfuels). 2. APPLICATION These specifications were released originally for material used as a Fuel Rail Seal in Fuel Injection Syste
4、ms (Suffix A) and an Inlet Manifold Seal vulcanised to an aluminum carrier (Suffix A2). The material has excellent resistance to automotive fuels including those that contain high levels alcohol and/or have become oxidised (“Sour“). The material will withstand temperatures up to 150 C for extended p
5、eriods. 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). 3.4 MATERIAL TESTING 3.4.1 Preparation of Test Specimens Whenever possible, all test specimen
6、s shall be die-cut from the finished parts. When not feasible, specimens cut from molded test sheets manufactured from the same material and with equivalent cure to molded parts are recommended. The test sheets shall have the following dimensions: 150 x 150 mm, min x 2.0 +/- 0.2 mm 3.5 ORIGINAL PROP
7、ERTIES Suffix A Suffix A2 3.5.1 Hardness, International, IRHD 75 - 85 65 - 75 (ASTM D 1415, Macro method) 3.5.2 Tensile Strength, min, MPa 10 10 (ISO 37/ASTM D 412, Die C) 3.5.3 Elongation at Break, min, % 275 250 (Test Method according to para 3.5.2) ENGINEERING MATERIAL SPECIFICATIONWSD-M2D440-A/A
8、2Printed copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 2 of 3 Suffix A Suffix A2 3.5.4 Modulus at 100% Elongation, MPa 4.0 - 5.0 3.5 - 5.0 (Test Method according to para 3.5.2) 3.5.5 Compression Set, max, % 20 20 (ISO 815/ASTM D 395, Method B, except 25% compression, pli
9、ed-up specimens, 70 h at 150 +/- 2 C) 3.5.6 Ozone Resistance, max. Rating 0 0 (FLTM BP 101-01, Procedure A) 3.6 HEAT AGED (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 150 +/- 2 C) 3.6.1 Hardness Change, max. IRHD +5 +5 3.6.2 Tensile Strength Change, max. % -20 -30 3.6.3 Elongation at Bre
10、ak Change, max. % -30 -40 3.7 HEAT AGED (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 168 h at 200 +/- 2 C) 3.7.1 Hardness Change, max. IRHD +5 +5 3.7.2 Tensile Strength Change, max. % -20 -30 3.7.3 Elongation at Break Change, max. % -50 -50 3.8 IMMERSION IN FUEL C (ISO 1817/ASTM D 471, 70 h at 23
11、/- 2 C) 3.8.1 Hardness Change, IRHD +/- 5 +/- 5 3.8.2 Tensile Strength Change, max, % -20 -40 3.8.3 Elongation at Break Change, max, % -20 -40 3.8.4 Volume Change, % 0 to +10 0 to +10 3.9 IMMERSION IN FUEL C +15% METHANOL (ISO 1817/ASTM D 471, 70 h at 23 +/- 2 C) 3.9.1 Hardness Change, IRHD -15 to
12、5 -15 to +5 3.9.2 Tensile Strength Change, max, % -40 -40 3.9.3 Elongation at Break Change, max, % -20 -20 3.9.4 Volume Change, % 0 to +20 0 to +20 ENGINEERING MATERIAL SPECIFICATIONWSD-M2D440-A/A2Printed copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 3 of 3 3.10 IMMERSI
13、ON IN 100% METHANOL (ISO 1817/ASTM D 471, 70 h at 23 +/- 2 C) Suffix A Suffix A2 3.10.1 Hardness Change, IRHD -15 to +5 -15 to +5 3.10.2 Tensile Strength Change, max, % -40 -40 3.10.3 Elongation at Break Change, max, % -20 -25 3.10.4 Volume Change, % 0 to +20 0 to +20 3.11 IMMERSION IN ETHANOL FUELS
14、 3.11.1 The testing carried out by immersion in methanol-containing fuels validates the material for use in ethanol-containing fuels. 3.12 IMMERSION IN OXIDIZED FUEL (SOUR FUEL) (ISO 1817/ASTM D 471, 336 h at 60 C +/- 2 C, PN 180, fuel according to FLTM AZ 105-01) 3.12.1 Hardness Change, IRHD -25 to
15、 +5 -25 to +5 3.12.2 Tensile Strength Change, max, % -50 -75 3.12.3 Elongation at Break Change, max, % -20 -35 3.12.4 Volume Change, % 0 to +25 0 to +20 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of these specifications. 5.1 Hardness, Durometer A 75 - 85 65 - 75 (ISO 868/ASTM D 2240, instantaneous, plied-up specimen. Hand held durometers shall not be used
