1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 08 26 N-STATUS No known use. No Replacement Named C. Mracna, NA 2004 09 14 Revised Para 3.0 inserted; para 3.1, 3.2, 3.3, 3.5 & 4 deleted 1987 08 10 Released 257 CE3R-RD836100E Printed copies are uncontrolled Copyright 2009, Ford Global T
2、echnologies, LLC Page 1 of 3 HYDROGENATED NITRILE (HSN) RUBBER, OIL SEAL ESE-M2D374-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a fully hydrogenated (saturated) nitrile rubber exhibiting good heat, ozone, oil and sour fuel resistance. 2. APPLICATION This sp
3、ecification was released originally for material used as a gasket (oil seal) for the low oil level sensor where good heat and oil resistance is needed. 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). 3.4 MATERIAL TESTING 3.4.1 Preparation of Test Specimens Whenever possible, all test specimens 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
5、 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 3.4.2 Density 1.20 +/- 0.02 g/cm3(ASTM D 297) 3.4.3 Hardness, International 70 - 80 (ASTM D 1415) 3.4.4 Hardness, Durometer A 75 - 85 (ASTM D 2240, instantaneous, plied-up s
6、pecimen) 3.4.5 Tensile Strength, min 20.7 MPa (ASTM D 412, Die C) 3.4.6 Elongation at Break, min 250% (Test Method according to para 3.4.5) 3.4.7 Modulus at 100% Elongation 5.5 MPa (Test Method according to para 3.4.5) ENGINEERING MATERIAL SPECIFICATIONESE-M2D374-APrinted copies are uncontrolled Cop
7、yright 2009, Ford Global Technologies, LLC Page 2 of 3 3.4.8 Brittleness Point, max -40 C (ASTM D 2137, Method A, except 2.0 +/- 0.2 mm specimen thickness) 3.4.9 Ozone Resistance, max Rating 0 (FLTM BP 101-01) 3.4.10 Compression Set, max 45% (ASTM D 395, Method B, on specimens, 70 h at 150 +/- 2 C)
8、3.4.11 Heat Aged (ASTM D 573, 168 h at 150 +/- 2 C) Hardness Change, max +12 Tensile Strength Change, max +15% Elongation Change, max -30% Modulus at 100% Elongation Change, max +180% Visual Evaluation No surface tackiness or cracks when folded flat against itself. 3.4.12 Immersion in ASTM Oil No.1
9、ASTM D 471, 168 h at 150 +/- 2 C) Hardness Change -5 to +10 Tensile Strength Change, max +25% Elongation Change, max -35% Volume Change -14% Visual Evaluation No surface tackiness or cracks when folded flat against itself. 3.4.13 Immersion in ASTM oil No.3 (ASTM D 471, 168 h at 150 +/- 2 C) Hardnes
10、s Change, max -10 Tensile Strength Change, max -5% Elongation Change, max -5 to +25% Volume Change +16% ENGINEERING MATERIAL SPECIFICATIONESE-M2D374-APrinted copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 3 of 3 Visual Evaluation No surface tackiness or cracks when folded flat against itself. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 RECYCLING CODE XNBR
