1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 05 25 A2-N-STATUS No replacement named C. Mracna, NA 2009 11 12 A2-Reactivated Reactivate FNOK F907 C. Mracna, NA 1984 05 22 Released CE3PRD863100E120 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 1 of
2、 4 FLUOROELASTOMER, OIL SEAL ESE-M2D338-A1 NOT TO BE USED FOR NEW DESIGN ESE-M2D338-A2 NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by these specifications is a high abrasion, heat and oil resistant fluoroelastomer. 2. APPLICATION These specifications were released originally for mate
3、rial used for the power steering gear pinion shaft seal and rotating shaft oil seal where long seal life and resistance to the new SF oils is required. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requi
4、rements For Production Materials (WSS-M99P1111-A). 3.1 SLAB STOCK SPECIMENS All tests are to be carried out on slab samples (ASTM D 3182) 1.9 +/- 0.1 mm thick, manufactured from the same material and under equivalent cure conditions as for production parts. A1 A2 3.1.1 Original Properties Specific G
5、ravity 1.91 - 2.01 1.83 - 2.02 (ASTM D 792) Hardness, Durometer A 80 +/- 5 75 +/- 5 (ASTM D 2240) Tensile Strength, MPa, min 9.5 9.0 (ASTM D 412, Die C) Elongation, % min 180 200 (ASTM D 412, Die C) 100% Modulus, MPa, min 4.3 3.4 (ASTM D 412, Die C) Tear Strength, kN/m, min 26 25 (ASTM D 624, Die B)
6、 Compression Set, % max 22 22 (ASTM D 395, Method B, 70 h at 150 +/- 1 C ENGINEERING MATERIAL SPECIFICATIONESE-M2D338-A1/A2Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 4 A1 A2 3.1.2 Immersion in ASTM Oil #1 (ASTM D 471, 168 h at 150 +/- 1 C, Aluminum Block)
7、 Hardness Change -3 to +5 -3 to +5 Tensile Strength -10 to +15 -10 to +18 Change, % Elongation Change, % -15 to +10 -15 to +10 180 Bend Test No cracks (Bent completely flat against itself) Volume Change, % -3 to +5 -3 to +7 3.1.3 Immersion in ASTM Oil #3 (ASTM D 471, 168 h at 150 +/- 1 C, Aluminum B
8、lock) Hardness Change -8 to 0 +/- 5 Tensile Strength -10 to +8 -12 to +13 Change, % Elongation Change, % -14 to +12 -18 to +12 180 Bend Test No cracks (Bent completely flat against itself) Volume Change, % 0 to +8 0 to +10 3.1.4 Heat Aged (ASTM D 865, 168 h at 225 +/- 1 C, Aluminum Block) Hardness C
9、hange, max +8 +10 Tensile Strength Change, -10 to +10 +30 % max Elongation Change, % max -15 -35 100% Modulus Change, +25 +30 % max 180 Bend Test No cracks (Bent completely flat against itself) ENGINEERING MATERIAL SPECIFICATIONESE-M2D338-A1/A2Printed copies are uncontrolled Copyright 2010, Ford Glo
10、bal Technologies, LLC Page 3 of 4 A1 A2 3.1.5 Cold Test At -40 C No cracks (FLTM BP 106-03) Samples shall not crack on flexing in test fixture. Condition samples prior to cold test per the following: .Immerse samples in ASTM Oil #1 at 150 +/- 1 C for 168h. .Remove samples from ASTM Oil #1, place in
11、“bent loop“ test fixture and condition in cold chamber at -40 +/-1 C for 5 h prior to flexing. 3.1.6 Immersion in Automatic Transmission Fluid ESD-M2C138-CJ, Exxon FN-1973 (ASTM D 471, 168 h at 150 +/- 1 C, Aluminum Block) Hardness Change +5 +5 Tensile Strength Change, -60 -65 % max Elongation Chang
12、e, % max -65 -65 Volume Change, % max +8 +8 3.2 FINISHED PARTS 3.2.1 Original Hardness, IRHD 75 +/- 5 70 +/- 5 (ASTM D 1415) 3.2.2 Immersion in ASTM Oil #1 (ASTM D 471, 168 h at 150 +/- 1 C, Aluminum Block) Hardness Change -1 to +5 7 180 Bend test No cracks (Bent completely flat against itself) Volu
13、me Change*, % -3 to +5 +/- 5 3.2.3 Immersion in ASTM Oil #3 (ASTM D 471, 168 h at 150 +/- 1 C, Aluminum Block) Hardness Change -8 to 0 8 180 Bend Test No cracks (Bent completely flat against itself) Volume Change*, % 0 to +8 0 to +12 ENGINEERING MATERIAL SPECIFICATIONESE-M2D338-A1/A2Printed copies a
14、re uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 4 A1 A2 3.2.4 Heat Aged (ASTM D 865, 168 h at 225 +/- 1 C, Aluminum Block) Hardness Change, max +8 +10 3.2.5 Adhesion (Rubber to metal) No complete bond failure Test Method: Strip approximately 3 mm of rubber from the metal by using a sharp knife and pull rubber tab at 90 angle. *The weight of seal stock for Volume Change determination shall be 0.4 g, min.
