Freudenberg Sealing Technologies NBR NB702717 Nitrile Butadiene Rubber

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Freudenberg Sealing Technologies NBR NB702717 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	Original Value	Comments

Density	1.23 g/cc	DIN 53479

Mechanical Properties	Original Value	Comments
Hardness, Shore A	70	DIN 53505
Tensile Strength	15.0 MPa	DIN 53504
Elongation at Break	340 %	DIN 53504
Compression Set	13 % @Temperature 0.000 °C, Time 259000 sec	DIN 53517, A
	13 % @Temperature 100 °C, Time 79200 sec	DIN 53517, A
	31 % @Temperature 100 °C, Time 605000 sec	DIN 53517, A
	44 % @Temperature -20.0 °C, Time 259000 sec	DIN 53517, A

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	100 °C
Minimum Service Temperature, Air	-30.0 °C	test; ASTM D1329, TR10
	-30.0 °C
	-23.0 °C	test; ASTM D1329, TR50
Brittleness Temperature	-34.0 °C	DIN 53546

Descriptive Properties
Color	black
Cross-linking	sulfur

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PFREU9293 / 293815

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