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Freudenberg Simrit N442 Nitrile Elastomer (NBR)

Category	Polymer , Thermoset , Rubber or Thermoset Elastomer (TSE)
Manufacturer	Freudenberg Simrit
Trade Name
Port	Ningbo port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	Freudenberg Simrit N442 Nitrile Elastomer (NBR).pdf
Price	EMAIL US sales@lookpolymers.com

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

Physical Properties	Metric	English	Comments
Specific Gravity	1.24 g/cc	1.24 g/cc	Original Properties; ASTM D297

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	74	74	Original Properties; ASTM D2240
	74 @Temperature 70.0 Â°C	74 @Temperature 158 Â°F	Chloramine Solution Immersion 50 ppm Chloramine, 2 weeks; ASTM D2240
	74 @Temperature 70.0 Â°C	74 @Temperature 158 Â°F	Chloramine Solution Immersion 50 ppm Chloramine, 4 weeks; ASTM D2240
	75 @Temperature 70.0 Â°C	75 @Temperature 158 Â°F	Chloramine Solution Immersion 50 ppm Chloramine, 8 weeks; ASTM D2240

Descriptive Properties	Value	Comments
Bend around 1/8th Inch Mandrel	no cracking
Volume Change (%), ASTM D471	2	Chloramine Solution Immersion 50 ppm Chloramine, 2 weeks at 70Â°C
	2.6	Chloramine Solution Immersion 50 ppm Chloramine, 4 weeks at 70Â°C
	3.8	Chloramine Solution Immersion 50 ppm Chloramine, 8 weeks at 70Â°C

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