1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 09 21 N-STATUS No Replacement Named, No known use C. Mracna, NA 2004 10 13 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.16, 3.17 & 4 1991 06 17 Released E10109215-008 C. C. Gray Printed copies are uncontrolled Copyright 2009, Ford Globa
2、l Technologies, LLC Page 1 of 5 HYDROGENATED NITRILE BUTADIENE RUBBER (HNBR) WSH-M2D463-A REFRIGERANT AND OIL RESISTANT O-RINGS HYDROGENATED NITRILE BUTADIENE RUBBER (HNBR) WSS-M2D463-A2 SUPERIOR COMPRESSION SET, REFRIGERANT AND OIL RESISTANT O-RINGS NOT TO BE USED FOR NEW DESIGN 1. SCOPE The materi
3、al defined by these specifications is a hydrogenated nitrile butadiene rubber (HNBR) suitable for high temperature use, possessing good resistance to refrigerant HFC-134A and polyalkylene glycol lubricants. 2. APPLICATION These specifications were released originally for material used for o-rings us
4、ed on the spring-lock quick-connect and P-nut couplings in the air conditioning system. 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
5、TESTING 3.4.1 Preparation of Test Specimens All test specimens shall be die-cut from molded test sheets manufactured from the same material and with equivalent cure to molded parts. The test sheets shall have the following dimensions: 150 x 150 mm, min x 2.0 +/- 0.2 mm 3.5 ORIGINAL PROPERTIES 3.5.1
6、Density 1.23 +/- .02 g/cm3(ISO 1183, Method A/ASTM D 297) 3.5.2 Hardness, International 70 +/- 5 (ISO 48/ASTM D 1415) 3.5.3 Hardness, Durometer A 70 +/- 5 (ISO 868/ASTM D 2240, instantaneous, plied-up specimen. Hand held durometer shall not be used) ENGINEERING MATERIAL SPECIFICATIONWSH-M2D463-A WSS
7、M2D463-A2Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 2 of 5 3.5.4 Tensile Strength, min 10.3 MPa (ISO 37/ASTM D 412, Die C) 3.5.5 Elongation at Break, min 140% (ISO 37/ASTM D 412, Die C) 3.5.6 Modulus at 100% Elongation, min 5.0 MPa (ISO 37/ASTM D 412, Die C)
8、3.5.7 Tear Strength, min 16 kN/m (ISO 34, Method B, procedure (a)/ ASTM D 624, Die C) 3.5.8 Brittleness Point, max -40 C (ISO 812, Type B specimen/ ASTM D 2137, Method A) 3.5.9 Ozone Resistance, max Rating 0 (FLTM BP 101-01, Procedure A) 3.5.10 Compression Set, max 30% (ISO 815/ASTM D 395, Method B
9、except 25% compression, plied-up Type 1 specimens, 70 h at 150 +/- 2 C) 3.6 HEAT AGED (ISO 188/ASTM D 573, 150 +/- 50 air changes/h 168 h at 150 +/- 2 C) 3.6.1 Hardness Change +20 to -5 3.6.2 Tensile Strength Change, max +40 to -5% 3.6.3 Elongation Change, max -45% 3.7 HEAT AGED (ISO 188/ASTM D 573,
10、 150 +/- 50 air changes/h 1000 h at 125 +/- 2 C) 3.7.1 Hardness Change +20 to 0 3.7.2 Tensile Strength Change, max +45 to 0% 3.7.3 Elongation Change, max -50% 3.7.4 Visual Evaluation No surface tackiness or cracks when folded flat against itself. ENGINEERING MATERIAL SPECIFICATIONWSH-M2D463-A WSS-M2
11、D463-A2Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 3 of 5 3.8 IMMERSION IN OIL NO. 1 (ISO 1817/ASTM D 471, 168 h at 150 +/- 2 C) 3.8.1 Hardness Change -5 to +10 3.8.2 Tensile Strength Change, max 0 to +18% 3.8.3 Elongation Change, max -25% 3.8.4 Volume Change +
12、/- 10% 3.8.5 Visual Evaluation No surface tackiness or cracks when folded flat against itself. 3.9 IMMERSION IN OIL NO. 3 (ISO 1817/ASTM D 471, 168 h at 150 +/- 2 C) 3.9.1 Hardness Change -15 to +5 3.9.2 Tensile Strength Change, max -20 to +10% 3.9.3 Elongation Change, max -30 to 0% 3.9.4 Volume Cha
13、nge 0 to +35% 3.9.5 Visual Evaluation No surface tackiness or cracks when folded flat against itself. 3.10 IMMERSION IN REFRIGERANT -134A WITH PAG LUBRICANT (WSH-M1C231-B) (ANSI/ASHRAE Standard 97-1989, modified, specimens aged in aluminum vessel, 168 h at 125 +/- 2 C) 3.10.1 Hardness Change -15 to
14、10 3.10.2 Tensile Strength Change, max -20% 3.10.3 Elongation Change, max +/- 20% 3.10.4 Volume Change -15 to +5% 3.10.5 Visual Evaluation No surface tackiness or cracks when folded flat against itself. ENGINEERING MATERIAL SPECIFICATIONWSH-M2D463-A WSS-M2D463-A2Printed copies are uncontrolled Copy
15、right 2009, Ford Global Technologies, LLC Page 4 of 5 3.11 IMMERSION IN SILICONE FLUID (ESF-M99B112-A) (ISO 1817/ASTM D 471, 168 h at 23 +/- 2 C) 3.11.1 Hardness Change +/- 2 3.11.2 Tensile Strength Change, max +/- 8% 3.11.3 Elongation Change, max +/- 15% 3.11.4 Volume Change +/- 5% 3.12 LOW TEMPERA
16、TURE RETRACTION (TR-10) -29 C (ASTM D 1329) 3.13 FINISHED PART The following requirements apply to o-rings and square cut seals only. For other type seals that use this material specific requirements shall be specified on the engineering drawing, engineering parts specifications and/or performance s
17、pecifications. All critical areas with respect to these properties shall be clearly designated on the engineering drawing. 3.13.1 Density 1.21 +/- .02 g/cm3(ISO 1183, Method A/ASTM D 297) 3.13.2 Hardness, International 68 +/- 5 (ISO 48/ASTM D 1415) 3.13.3 Tensile Strength, min 10.0 MPa (ISO 37/ASTM
18、D 1414, Die C) 3.13.4 Elongation at Break, min 175% (Test Method according to para 3.5.4) 3.13.5 Modulus at 100 % Elongation, min 3.0 MPa (Test Method according to para 3.5.4) 3.13.6 Compression Set, max 55% (ISO 815/ASTM D 395 except 25% compression, 70 h at 135 +/- 2 C) 3.13.7 Heat Aging (ISO 188/
19、ASTM D 573, 150 +/- 50 air changes, 1000 h at 125 +/- 2 C) Hardness Change 0 to +20 Tensile Strength Change, max 0 to +35% Elongation Change, max -55 to 0% Visual Evaluation No surface tackiness or cracks when folded flat against itself. ENGINEERING MATERIAL SPECIFICATIONWSH-M2D463-A WSS-M2D463-A2Pr
20、inted copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 5 of 5 3.13.8 Immersion in Refrigerant - 134a and PAG lubricant (WSH-M17B19-A/WSH-M1C231-B) (ANSI/ASHRAE Standard 87-1989, 1000 h at 125 +/- 2 C) Hardness Change -5 to +10 Tensile Strength Change, max -20% Elongation Ch
21、ange, max -30 to +10% Volume Swell -15 to +5% 3.14 RESISTANCE TO CORROSION Test Method: Dip o-ring in ESF-M99B112-A silicone lubricant and wipe excess oil from the o-ring with dry cotton swabs. Place two o-rings on a 25 x 50 x 12 mm AA 3003 aluminum plate. Compress the o-rings 20% between two alumin
22、um plates and test to FLTM BQ 104-02 humidity aging for 720 hours. After aging, remove the o-rings from the plates and check the surface of the aluminum plates for any evidence of corrosion where the o-rings were placed. A A2 3.15 COMPRESSION SET IN 2 O-RING SPRING LOCK 65 35 COUPLING, % max (1000 h, Temp cycle 135 C to -40 C, Refrigerant pressure 2800 - 3500 KPa This test to be arranged/conducted by Visteon.)
