Freudenberg N475 Nitrile Elastomer (NBR)

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Freudenberg N475 Nitrile Elastomer (NBR)
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes:	General Purpose; Internal Lubricant. Inferior resistance to ozone, sunlight and natural aging; poor resistance to oxygenated solvents. All testing done on AS568-214 size o-rings This product was formerly sold under the Freudenberg Simrit division; now Freudenberg Sealing Technologies.
Key Words:	CHEMIGUM® , HYCAR® , PARACRIL® , PERBUNAN®, KRYNAC®, NYSYSN®
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Mechanical Properties	Metric	English	Comments

Hardness, Shore A	73	73	Original Property; ASTM D2240
	69	69	ASTM IRM 903 Oil Immersion, 70 hours; ASTM D2240
	76	76	ASTM #1 Oil Immersion, 70 hours; ASTM D2240
	77	77	Air age, 70 hours; ASTM D2240
Tensile Strength, Ultimate	18.7 MPa	2710 psi	Original Property; ASTM D412 Die C
	11.407 MPa	1654.4 psi	ASTM IRM 903 Oil Immersion, 70 hours; ASTM D412 Die C
	15.147 MPa	2196.9 psi	ASTM #1 Oil Immersion, 70 hours; ASTM D412 Die C
	20.009 MPa	2902.1 psi	Air age, 70 hours; ASTM D412 Die C
Elongation at Break	195 %	195 %	Original Property; ASTM D412 Die C
	130.65 %	130.65 %	ASTM IRM 903 Oil Immersion, 70 hours; ASTM D412 Die C
	152.1 %	152.1 %	ASTM #1 Oil Immersion, 70 hours; ASTM D412 Die C
	165.75 %	165.75 %	Air age, 70 hours; ASTM D412 Die C
Compression Set	5.2 % @Temperature 100 °C, Time 79200 sec	5.2 % @Temperature 212 °F, Time 22.0 hour	ASTM D395 Method B

Descriptive Properties
Volume Change (%), ASTM D471	-0.9		ASTM #1 Oil Immersion, 70 hours at 150°C
	14.3		ASTM IRM 903 Oil Immersion, 70 hours at 150°C

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PSIMR137 / 79099

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