Freudenberg Sealing Technologies 80 NBR B241 Nitrile Butadiene Rubber

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Freudenberg Sealing Technologies 80 NBR B241 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	1.20 g/cc @Temperature 23.0 °C	0.0434 lb/in³ @Temperature 73.4 °F	DIN EN ISO 1183-1

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	78 @Temperature 23.0 °C	78 @Temperature 73.4 °F	DIN ISO 7619-1
Tensile Strength	22.0 MPa @Temperature 23.0 °C	3190 psi @Temperature 73.4 °F	DIN 53504, S2
Elongation at Break	300 % @Temperature 23.0 °C	300 % @Temperature 73.4 °F	DIN 53504, S2
100% Modulus	4.20 MPa @Temperature 23.0 °C	609 psi @Temperature 73.4 °F	DIN 53504, S2
Tear Strength	21.0 kN/m @Temperature 23.0 °C	120 pli @Temperature 73.4 °F	DIN ISO 34-1
Compression Set	22 % @Temperature 70.0 °C, Time 79200 sec	22 % @Temperature 158 °F, Time 22.0 hour	DIN ISO 815, B
	36 % @Temperature 100 °C, Time 252000 sec	36 % @Temperature 212 °F, Time 70.0 hour	DIN ISO 815, B

Thermal Properties	Metric	English	Comments
Minimum Service Temperature, Air	-27.0 °C	-16.6 °F	DSC; ISO 11357-2

Descriptive Properties
Color	black
Flexural stress in low temperatures	-40		BMW GS 93010-2

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PFREU9186 / 293709

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