Freudenberg Sealing Technologies 85 NBR B247 Nitrile Butadiene Rubber

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Freudenberg Sealing Technologies 85 NBR B247 Nitrile Butadiene Rubber
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes:	Nitrile rubber exhibits superior mechanical strength with high elasticity as well as good deformation behavior. Its relatively low heat resistance can be traced to the presence of reactive double bonds. It is used for oil- and fuel-resistant seals such as Simmerrings®, O-rings and frame seals. The use of NBR marked the arrival of elastomers as a sealing material particularly in general industry. Information provided by Freudenberg Sealing Technologies.
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Physical Properties	Metric	English	Comments

Density	1.24 g/cc @Temperature 23.0 °C	0.0448 lb/in³ @Temperature 73.4 °F	DIN EN ISO 1183-1

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	85 @Temperature 23.0 °C	85 @Temperature 73.4 °F	DIN ISO 7619-1
Tensile Strength	21.9 MPa @Temperature 23.0 °C	3180 psi @Temperature 73.4 °F	DIN 53504, R1
Elongation at Break	160 % @Temperature 23.0 °C	160 % @Temperature 73.4 °F	DIN 53504, R1
100% Modulus	13.5 MPa @Temperature 23.0 °C	1960 psi @Temperature 73.4 °F	DIN 53504, S2
Tear Strength	17.0 kN/m @Temperature 23.0 °C	97.0 pli @Temperature 73.4 °F	DIN ISO 34-1, B
Compression Set	10 % @Temperature 70.0 °C, Time 86400 sec	10 % @Temperature 158 °F, Time 24.0 hour	DIN ISO 815, B
	22 % @Temperature 100 °C, Time 252000 sec	22 % @Temperature 212 °F, Time 70.0 hour	DIN ISO 815, B

Thermal Properties	Metric	English	Comments
Minimum Service Temperature, Air	-20.0 °C	-4.00 °F	DSC; ISO 11357-2
	-12.0 °C	10.4 °F	TR; DIN 53545
Brittleness Temperature	-30.0 °C	-22.0 °F	DIN 53546

Descriptive Properties
Color	black

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PFREU9215 / 293737

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