Freudenberg Sealing Technologies 70 HNBR 254067 Hydrogenated Nitrile Rubber

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Freudenberg Sealing Technologies 70 HNBR 254067 Hydrogenated Nitrile Rubber
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes:	HNBR is resistant to hot water and exhibits good cold and high temperature behavior. In sealing technology, the significantly more expensive HNBR, which is a proven standard material for automotive engine timing belts, is primarily used in applications where higher temperatures and/or mechanical strength are required. Its strength is above all in demand for rod and piston seals, along with O-rings, radial shaft seal rings, boots and diaphragms. Information provided by Freudenberg Sealing Technologies.
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Physical Properties	Metric	English	Comments

Density	1.11 g/cc @Temperature 23.0 °C	0.0401 lb/in³ @Temperature 73.4 °F	DIN EN ISO 1183-1

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	72 @Temperature 23.0 °C	72 @Temperature 73.4 °F	DIN EN ISO 7619-1
Tensile Strength	16.8 MPa @Temperature 23.0 °C	2440 psi @Temperature 73.4 °F	DIN 53504, S2
Elongation at Break	185 % @Temperature 23.0 °C	185 % @Temperature 73.4 °F	DIN 53504, S2
100% Modulus	5.20 MPa @Temperature 23.0 °C	754 psi @Temperature 73.4 °F	DIN 53504, S2
Compression Set	12 % @Temperature 125 °C, Time 86400 sec	12 % @Temperature 257 °F, Time 24.0 hour	DIN ISO 815, B

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	140 °C	284 °F
Minimum Service Temperature, Air	-30.0 °C	-22.0 °F

Descriptive Properties
Color	green

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PFREU9089 / 293625

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