Freudenberg Sealing Technologies 80 FKM K670 Fluoroelastomer

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Freudenberg Sealing Technologies 80 FKM K670 Fluoroelastomer
Categories:	Polymer; Thermoset; Fluoropolymer, TS; Thermoset Fluoroelastomer; Rubber or Thermoset Elastomer (TSE)
Material Notes:	FKM seals display very good resistance to media, ozone and aging. The material is also stable in fuels as well as petroleum-based oils and greases, along with aliphatic and aromatic hydrocarbons. It is unstable with regard to polar solvents (e.g. acetone, MEK and ethyl acetate), low molecular weight organic acids (formic and acetic acid), glycol-based brake fluid, ammonia gas, amines, alkalis and superheated steam. Information provided by Freudenberg Sealing Technologies.
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Physical Properties	Metric	English	Comments

Density	2.02 g/cc @Temperature 23.0 °C	0.0730 lb/in³ @Temperature 73.4 °F	DIN EN ISO 1183-1

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	80 @Temperature 23.0 °C	80 @Temperature 73.4 °F	DIN ISO 7619-1
Tensile Strength	17.0 MPa @Temperature 23.0 °C	2470 psi @Temperature 73.4 °F	DIN 53504, S2
Elongation at Break	210 % @Temperature 23.0 °C	210 % @Temperature 73.4 °F	DIN 53504, S2
100% Modulus	8.30 MPa @Temperature 23.0 °C	1200 psi @Temperature 73.4 °F	DIN 53504, S2
Tear Strength	16.0 kN/m	91.3 pli	DIN ISO 34-1, B
Compression Set	29 % @Temperature 100 °C, Time 252000 sec	29 % @Temperature 212 °F, Time 70.0 hour	DIN ISO 815, B
	68 % @Temperature 200 °C, Time 252000 sec	68 % @Temperature 392 °F, Time 70.0 hour	DIN ISO 815, B

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	200 °C	392 °F
Minimum Service Temperature, Air	-10.0 °C	14.0 °F
	-9.00 °C	15.8 °F	DSC; ISO 11357-2

Descriptive Properties
Color	black
Flexural stress in low temperatures	-40		BMW GS 93010-2
Microhardness (IRHD)	76		DIN ISO 48

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

PFREU9174 / 293697

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