Huntsman IROGRAN® A 78 E 4723 Polyester-Based TPU-Injection Extrusion Grade

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Huntsman IROGRAN® A 78 E 4723 Polyester-Based TPU-Injection Extrusion Grade
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Polyurethane TPE; Polyurethane, TP; Thermoplastic Polyurethane, Elastomer, Polyester Grade
Material Notes:	Introduction: IROGRAN A 78 E 4723 is a thermoplastic polyester- polyurethane for injection moulding and extrusion applications. Additional characteristics of the product are flexibility and high mechanical resistance. Performance Features: High transparence Good melt flow High wear resistance High oil resistance Dynamically highly loadable Applications: For the production of spiral hoses, profiles hoses, jackets for high pressure hoses, technical parts. 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	ASTM D995
Melt Index of Compound	50 g/10 min @Load 21.6 kg, Temperature 190 °C	50 g/10 min @Load 47.6 lb, Temperature 374 °F	cm³/10 min

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	80	80	ASTM D2240
Hardness, Shore D	30	30	ASTM D2240
Tensile Strength at Break	45.0 MPa	6530 psi	DIN 53504
Elongation at Break	660 %	660 %	ASTM D412
100% Modulus	4.10 MPa @Strain 100 %	595 psi @Strain 100 %	DIN 53504
300% Modulus	10.0 MPa @Strain 300 %	1450 psi @Strain 300 %	DIN 53504
Rebound	47 %	47 %	Bayshore; ASTM D2632
Tear Strength	89.4 kN/m	510 pli	ASTM D624
Abrasion	25	25	[mm³]; ISO 4649
Compression Set	25 % @Temperature 23.0 °C, Time 252000 sec	25 % @Temperature 73.4 °F, Time 70.0 hour	ASTM D395
	38 % @Temperature 70.0 °C, Time 86400 sec	38 % @Temperature 158 °F, Time 24.0 hour	ASTM D395

Thermal Properties	Metric	English	Comments
Melting Point	156 - 167 °C	313 - 333 °F	Huntsman/TMA

Optical Properties	Metric	English	Comments
Transmission, Visible	90 %	90 %	transparent; thickness not reported

Processing Properties	Metric	English	Comments
Feed Temperature	25.0 - 40.0 °C	77.0 - 104 °F	Extrusion
Front Barrel Temperature	165 - 190 °C	329 - 374 °F	Extrusion
Nozzle Temperature	170 - 200 °C	338 - 392 °F	Extrusion
	180 - 200 °C	356 - 392 °F	Injection
Adapter Temperature	175 - 195 °C	347 - 383 °F	Extrusion
Die Temperature	175 - 200 °C	347 - 392 °F	Extrusion
Melt Temperature	170 - 195 °C	338 - 383 °F	Injection
Mold Temperature	20.0 - 70.0 °C	68.0 - 158 °F	Injection

Descriptive Properties
Heating Zone	175-195°C		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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