Huntsman IROGRAN® A 95 K 4640 TPU-For Seals

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Huntsman IROGRAN® A 95 K 4640 TPU-For Seals
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Polyurethane TPE; Polyurethane, TP
Material Notes:	Introduction: IROGRAN A95K 4640 is a caprolactone-based thermoplastic polyurethane. The material has been developed for injection molding applications requiring exceptional performance in terms of compression set, wear resistance and hydrolysis resistance over conventional polyester-based TPUs. IROGRAN A95K 4640 is part of the High Performance Injection Molding product range and offers a specially designed, flexible material suitable for the production of seals, wheels and rollers, coupling halves and o-rings. Performance Features: High wear resistance Low compression set Short cycle times Excellent hydrolysis resistance Resistant to high dynamic loads Information provided by Huntsman
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Physical Properties	Metric	English	Comments

Density	1.19 g/cc	0.0430 lb/in³	ASTM D792
Linear Mold Shrinkage	0.0080 cm/cm	0.0080 in/in
Melt Index of Compound	5.0 - 10 g/10 min @Load 21.6 kg, Temperature 210 °C	5.0 - 10 g/10 min @Load 47.6 lb, Temperature 410 °F	cm³/10 min

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	95	95	ASTM D2240
Hardness, Shore D	47	47	ASTM D2240
Tensile Strength at Break	53.0 MPa	7690 psi	ASTM D412
Tensile Stress at Strain	7.00 MPa @Strain 20 %	1020 psi @Strain 20 %	DIN 53504
Elongation at Break	450 %	450 %	ASTM D412
50% Modulus	9.00 MPa @Strain 50 %	9.00 MPa @Strain 50 %	DIN 53504
100% Modulus	11.5 MPa @Strain 100 %	1670 psi @Strain 100 %	DIN 53504
200% Modulus	14.2 MPa @Strain 200 %	2060 psi @Strain 200 %	DIN 53504
300% Modulus	20.4 MPa @Strain 300 %	2960 psi @Strain 300 %	DIN 53504
Tear Strength	105 kN/m	599 pli	ASTM D624
Abrasion	35	35	[mm³]; ASTM D395
Compression Set	14 % @Temperature 23.0 °C, Time 86400 sec	14 % @Temperature 73.4 °F, Time 24.0 hour	ASTM D395
	23 % @Temperature 70.0 °C, Time 86400 sec	23 % @Temperature 158 °F, Time 24.0 hour	ASTM D395
	25 % @Temperature 100 °C, Time 86400 sec	25 % @Temperature 212 °F, Time 24.0 hour	ASTM D395
	38 % @Temperature 100 °C, Time 252000 sec	38 % @Temperature 212 °F, Time 70.0 hour	ASTM D395

Thermal Properties	Metric	English	Comments
Vicat Softening Point	165 °C	329 °F	DIN 53372

Processing Properties	Metric	English	Comments
Nozzle Temperature	200 °C	392 °F	Injection
Zone 1	205 °C	401 °F	Injection
Zone 2	205 °C	401 °F	Injection
Zone 3	205 °C	401 °F	Injection
Mold Temperature	25.0 - 70.0 °C	77.0 - 158 °F	Injection

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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PHU9938 / 150398

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