Covestro Makrolon® 1954 Polycarbonate

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Covestro Makrolon® 1954 Polycarbonate
Categories:	Polymer; Thermoplastic; Polycarbonate (PC); Polycarbonate, Molded; Polycarbonate, UV Stabilized
Material Notes:	Main characteristics: • High toughness • Good heat resistance • Glass-like transparency, optical quality • High dimensional accuracy and stability Grade characteristics: • Low viscosity • UV stabilized • Improved friction characteristics Formerly Makrolon DP1-1954 As of 1 September 2015, Bayer MaterialScience was separated from Bayer AG and officially adopted its new name – Covestro.
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Physical Properties	Metric	English	Comments

Density	1.215 g/cc	0.04389 lb/in³	ISO 1183-1
Melt Flow	19 g/10 min @Load 1.20 kg, Temperature 300 °C	19 g/10 min @Load 2.65 lb, Temperature 572 °F	ISO 1133

Mechanical Properties	Metric	English	Comments
Tensile Strength at Break	60.0 MPa	8700 psi	50 mm/min; ISO 527-1,-2
Tensile Strength, Yield	63.0 MPa	9140 psi	50 mm/min; ISO 527-1,-2
Elongation at Break	100 %	100 %	50 mm/min; b.o. ISO 527-1,-2
Elongation at Yield	5.6 %	5.6 %	50 mm/min; ISO 527-1,-2
Tensile Modulus	2.30 GPa	334 ksi	1 mm/min; ISO 527-1,-2
Flexural Strength	94.0 MPa	13600 psi	2 mm/min; ISO 178
Flexural Yield Strength	73.0 MPa @Strain 3.5 %	10600 psi @Strain 3.5 %	2 mm/min; ISO 178
Flexural Modulus	2.30 GPa	334 ksi	2 mm/min; ISO 178
Flexural Strain at Yield	6.6 %	6.6 %	2 mm/min; ISO 178
Izod Impact, Notched (ISO)	12.0 kJ/m² @Thickness 3.00 mm, Temperature 23.0 °C	5.71 ft-lb/in² @Thickness 0.118 in, Temperature 73.4 °F	complete break; b.o. ISO 180-A
Charpy Impact Unnotched	NB @Temperature 23.0 °C	NB @Temperature 73.4 °F	ISO 179-1eU
	NB @Temperature -30.0 °C	NB @Temperature -22.0 °F	ISO 179-1eU
Charpy Impact, Notched	1.20 J/cm² @Thickness 3.00 mm, Temperature 23.0 °C	5.71 ft-lb/in² @Thickness 0.118 in, Temperature 73.4 °F	complete break; ISO 7391/b.o. ISO 179-1eA

Thermal Properties	Metric	English	Comments
Deflection Temperature at 0.46 MPa (66 psi)	136 °C	277 °F	ISO 75-1,-2
Deflection Temperature at 1.8 MPa (264 psi)	124 °C	255 °F	ISO 75-1,-2
Vicat Softening Point	143 °C @Load 5.10 kg	289 °F @Load 11.2 lb	50°C/h; ISO 306
Flammability, UL94	HB @Thickness 1.50 mm	HB @Thickness 0.0591 in

Processing Properties	Metric	English	Comments
Melt Temperature	280 °C	536 °F	Injection molding; ISO 294
Mold Temperature	80.0 °C	176 °F	Injection molding; ISO 294
Injection Velocity	200 mm/sec	7.87 in/sec	ISO 294

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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