Seals Eastern 7267 Ethylene-Propylene Rubber

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Seals Eastern 7267 Ethylene-Propylene Rubber
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes:	EPDM for high temperature steam service. Also available as a Y267-Type (7267L). Information provided by Seals Eastern, Inc.
Key Words:	EPDM
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Physical Properties	Metric	English	Comments

Specific Gravity	1.07 g/cc	1.07 g/cc	ASTM D297, 15

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	>= 70	>= 70	ASTM D2240, Type A
	77	77	AVG; ASTM D2240, Type A
	77 @Treatment Temp. 125 °C, Time 252000 sec	77 @Treatment Temp. 257 °F, Time 70.0 hour	After Dry Heat Aging; ASTM D865
Tensile Strength at Break	>= 11.0 MPa	>= 1600 psi	ASTM D412 Method A
	16.13 MPa	2339 psi	AVG; ASTM D412 Method A
	15.97 MPa @Treatment Temp. 125 °C, Time 252000 sec	2316 psi @Treatment Temp. 257 °F, Time 70.0 hour	ASTM D412 Method A
Tensile Stress at Strain	>= 1.31 MPa @Strain 50 %	>= 190 psi @Strain 50 %	Minimum; ASTM D412 Method A
	>= 1.52 MPa @Strain 100 %	>= 220 psi @Strain 100 %	Minimum; ASTM D412 Method A
	2.20 MPa @Strain 25 %	319 psi @Strain 25 %	Average; ASTM D412 Method A
	3.45 MPa @Strain 50 %	500 psi @Strain 50 %	Average; ASTM D412 Method A
	8.96 MPa @Strain 100 %	1300 psi @Strain 100 %	Average; ASTM D412 Method A
Elongation at Break	>= 100 %	>= 100 %	ASTM D412 Method A
	153 %	153 %	AVG; ASTM D412 Method A
	186.7 % @Treatment Temp. 125 °C, Time 252000 sec	186.7 % @Treatment Temp. 257 °F, Time 70.0 hour	ASTM D865
Modulus of Elasticity	0.01649 GPa	2.392 ksi	ASTM D412 Method A
Poissons Ratio	0.50	0.50	Calculated
Shear Modulus	0.00550 GPa	0.797 ksi	ASTM D412 Method A
Secant Modulus	0.01551 GPa	2.249 ksi	ASTM D412 Method A
Compression Set	12 % @Temperature 125 °C, Time 252000 sec	12 % @Temperature 257 °F, Time 70.0 hour	ASTM D395, Test B

Thermal Properties	Metric	English	Comments
Glass Transition Temp, Tg	-51.1 °C	-60.0 °F	ASTM D1329

Processing Properties	Metric	English	Comments
Shelf Life	120 Month	120 Month	ASTM D395, Test B

Descriptive Properties
Strain Energy / Unit Volume at 20% Elongation (psi)	30

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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