1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 08 13 N-STATUS No known use. No Replacement Named C. Mracna, NA 2004 08 26 Revised Removed Inactive ESA-M2D197-A2; Inserted 3.0, Deleted 3.1, 3.2, 3.3, 3.5, 3.6, 41970 02 19 Released AY2-137 Printed copies are uncontrolled Copyright 2009,
2、 Ford Global Technologies, LLC Page 1 of 2 THERMOPLASTIC POLYURETHANE ELASTOMER, ESA-M2D197-A1 80 DUROMETER A HARDNESS THERMOPLASTIC POLYURETHANE ELASTOMER, ESA-M2D198-A 55 DUROMETER D HARDNESS NOT TO BE USED FOR NEW DESIGN 1. SCOPE The materials defined by these specifications are ether based therm
3、oplastic polyurethane elastomeric compounds that may be processed by either injection or extrusion molding. 2. APPLICATION These specifications were released originally for materials used to manufacture seals and steering flex coupling insulators. ESA-M2D197-A1 replaces and is the same as ESA-M2D197
4、-A. 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 MOLDED TEST SPECIMEN M2D197-A1 M2D198-A 3.4.1 Specific Gravity 1.13-1.17 1.13-1.17 (ASTM D 79
5、2) 3.4.2 Hardness (ASTM D 2240) Durometer A 75-85 - Durometer D - 50-60 3.4.3 Melting Point, C 213-218 224-229 (FLTM BO 021-02) 3.4.3 Tensile Properties (ASTM D 412, Die C) 3.4.3.1 Tensile Stress, MPa, min At 100% Elongation 5.5 17.2 At 300% Elongation 13.8 27.6 ENGINEERING MATERIAL SPECIFICATIONESA
6、-M2D197-A1 ESA-M2D198-A Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 2 of 2 M2D197-A1 M2D198-A 3.4.3.2 Tensile 34.5 34.5 Strength, MPa, min 3.4.3.3 Elongation 400 350 at Break, % min 3.4.4 Tear Strength, 75 105 kN/m, min (ASTM D 624, Die C) 3.4.5 Ozone Rating, m
7、ax 0 0 (FLTM BP 101-01) 3.4.6 Compression Set, 35 30 % max (ASTM D 395, Method B, 22 h at 70 C) 3.4.7 Brittleness Point, No No -40 C cracks cracks (ASTM D 2137, 5 h immersion) Condition samples prior to cold test per the following methods: . Original (as received) . After oven aging 70 h at 100 +/-
8、2 C . After ASTM #3 oil aging 70 h at 100 +/- 2 C 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 Parts molded from this material shall be oven cured for 16 h at 110 116 C to achieve maximum physical properties.
