Seals Eastern 7345 Highly Saturated Nitrile Rubber

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Seals Eastern 7345 Highly Saturated Nitrile Rubber
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Thermoplastic Elastomer, Melt-Processible Rubber
Material Notes:	HNBR for Oil & Gas service Information provided by Seals Eastern, Inc.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.14 g/cc	1.14 g/cc	ASTM D297, 15

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	70	70	AVG; ASTM D2240, Type A
	>= 70	>= 70	ASTM D2240, Type A
	74 @Treatment Temp. 100 °C, Time 252000 sec	74 @Treatment Temp. 212 °F, Time 70.0 hour	After Dry Heat Aging; ASTM D865
Tensile Strength at Break	>= 26.9 MPa	>= 3900 psi	ASTM D412 Method A
	27.2 MPa	3940 psi	AVG; ASTM D412 Method A
	26.9 MPa @Treatment Temp. 100 °C, Time 252000 sec	3900 psi @Treatment Temp. 212 °F, Time 70.0 hour	ASTM D865
Tensile Stress at Strain	1.28 MPa @Strain 25 %	185 psi @Strain 25 %	Average; ASTM D412 Method A
	>= 1.63 MPa @Strain 50 %	>= 237 psi @Strain 50 %	Minimum; ASTM D412 Method A
	1.69 MPa @Strain 50 %	245 psi @Strain 50 %	Average; ASTM D412 Method A
	>= 2.31 MPa @Strain 100 %	>= 335 psi @Strain 100 %	Minimum; ASTM D412 Method A
	2.83 MPa @Strain 100 %	410 psi @Strain 100 %	Average; ASTM D412 Method A
Elongation at Break	>= 420 %	>= 420 %	ASTM D412 Method A
	425 %	425 %	AVG; ASTM D412 Method A
	369.7 % @Treatment Temp. 100 °C, Time 252000 sec	369.7 % @Treatment Temp. 212 °F, Time 70.0 hour	ASTM D865
Modulus of Elasticity	0.0103 GPa	1.49 ksi	ASTM D412 Method A
Poissons Ratio	0.49	0.49	Calculated
Shear Modulus	0.00344 GPa	0.499 ksi	ASTM D412 Method A
Secant Modulus	0.00965 GPa	1.40 ksi	ASTM D412 Method A
Tear Strength Test	440	440	(psi); ASTM D624, Die B
Compression Set	31 % @Temperature 100 °C, Time 252000 sec	31 % @Temperature 212 °F, Time 70.0 hour	ASTM D395, Test B

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	65.6 °C	150 °F	ASTM D1329
Glass Transition Temp, Tg	-18.3 °C	-1.00 °F	ASTM D1329

Descriptive Properties
Strain Energy / Unit Volume at 20% Elongation (psi)	23

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.

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