Evonik Multilayer Tubing 8EV series

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Evonik Multilayer Tubing 8EV series
Categories:	Other Engineering Material
Material Notes:	VESTAMID® MLT 8EV FOR COOLING LINES IN BATTERY ELECTRIC VEHICLES. The multilayer tubing system MLT 8EV is an automotive industry proven 3-layer system for thermal management systems. In battery electric powered vehicles (BEV) thermal management of battery, E-motor or power electronic is essential. The VESTAMID® MLT 8EV o?ers a cost-e?ective composition for cooling line application, following especially the requirements of BEV. An inner layer made of polypropylene act as di?usion barrier. As adhesion-promoting layer a polyole?n guarantee the adherence of the inner with the outer layer. At the outside a layer made of polyamide 12 VESTAMID® ensures the requested mechanical and thermal strength. Industrial Sector: Automotive and Mobility Processing: Extrusion Delivery form: Pellets, Granules Resistance to: Heat (thermal stability), Hydrolysis / hot water Electrical: Insulating Conformity: Automotive Applications: Tube and hose , Refrigeration Processing: Thermoforming, Pipe/Tube extrusion Special Characteristics: Halogen-free, High impact strength Chemical Resistance: Hydrolytically stable, Aging resistance Information provided by Evonik.
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Mechanical Properties	Original Value	Comments

Tensile Strength, Yield	22.0 MPa	virgin; ISO 527
	29.0 MPa	after recirculation; ISO 527
Elongation at Break	>= 42.0 %	3010h recirculation time
	>= 65.0 %	700h recirculation time
	>= 65.0 %	1500h recirculation time
	>= 90.0 %	0h recirculation time
	>= 150 %	after recirculation; ISO 527
	>= 150 %	virgin; ISO 527
Modulus of Elasticity	0.750 GPa	virgin; ISO 527
	0.780 GPa	after recirculation; ISO 527

Descriptive Properties
Cold impact resistance after recirculation	0/10	failures/specimen; virgin, SAE J2260
	0/10	failures/specimen; after recirculation, SAE J2260
Hoop Strength	23 N/mm2	virgin, DIN 53578
	30 N/mm2	after recirculation, DIN 53578

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PEVONIK7809 / 324941

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