Celanese Celanex® XFR 4840 10/0242 Black PBT

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Celanese Celanex® XFR 4840 10/0242 Black PBT
Categories:	Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT)
Material Notes:	Celanex XFR 4840 is an unreinforced, flame retardant PBT grade featuring a halogen and antimony free flame retardant system. It is UL certified to be V-0 at 0.8 mm in all colors. Our proprietary flame retardant system enables a combination of excellent me Halogen-free flame retardant, unreinforced PBT Information provided by Celanese
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Physical Properties	Metric	English	Comments

Density	1.34 g/cc	0.0484 lb/in³	ISO 1183

Mechanical Properties	Metric	English	Comments
Tensile Strength at Break	45.0 MPa	6530 psi	50mm/min; ISO 527-2/1A
Elongation at Break	14 %	14 %	50mm/min; ISO 527-2/1A
Tensile Modulus	3.40 GPa	493 ksi	1mm/min; ISO 527-2/1A
Charpy Impact, Notched	0.300 J/cm²	1.43 ft-lb/in²	ISO 179/1eA

Electrical Properties	Metric	English	Comments
Comparative Tracking Index	600 V	600 V	IEC 60112

Thermal Properties	Metric	English	Comments
Melting Point	225 °C	437 °F	10°C/min; ISO 11357-1,-2,-3
Deflection Temperature at 1.8 MPa (264 psi)	70.0 °C	158 °F	ISO 75-1, -2
Flammability, UL94	V-0 @Thickness 0.800 mm	V-0 @Thickness 0.0315 in	UL94

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PHCR074 / 158643

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