Covestro Makrolon® Rx1851 Polycarbonate

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Covestro Makrolon® Rx1851 Polycarbonate
Categories:	Polymer; Thermoplastic; Polycarbonate (PC); Polycarbonate, Molded
Material Notes:	MVR (300 °C/1.2 kg) 23 cm³/10 min; medical devices; low viscosity; easy release; injection molding - melt temperature 280 - 320 °C 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	Original Value	Comments

Bulk Density	0.660 g/cc	pellets; ISO 60
Density	1.20 g/cc	ISO 1183-1
Moisture Absorption at Equilibrium	0.12 %	ISO 62, 50% RH
Water Absorption at Saturation	0.30 %	ISO 62
Linear Mold Shrinkage	0.0050 - 0.0070 cm/cm	parallel/normal; b.o. ISO 2577
Linear Mold Shrinkage, Flow	0.0070 cm/cm @Thickness 2.00 mm	60x60x2 mm; 500 bar; ISO 294-4
Linear Mold Shrinkage, Transverse	0.0070 cm/cm @Thickness 2.00 mm	60x60x2 mm; 500 bar; ISO 294-4
Melt Flow	24 g/10 min @Load 1.20 kg, Temperature 300 °C	ISO 1133

Mechanical Properties	Original Value	Comments
Puncture Resistance	5200 N @Temperature 23.0 °C	ISO 6603-2
	6200 N @Temperature -30.0 °C	ISO 6603-2
Ball Indentation Hardness	117 MPa	ISO 2039-1
Tensile Strength at Break	70.0 MPa	50 mm/min; ISO 527-1,-2
Tensile Strength, Yield	65.0 MPa	50 mm/min; ISO 527-1,-2
Elongation at Break	>= 50 %	Nominal, 50 mm/min; ISO 527-1,-2
	120 %	50 mm/min; b.o. ISO 527-1,-2
Elongation at Yield	6.0 %	50 mm/min; ISO 527-1,-2
Tensile Modulus	2400 MPa	1 mm/min; ISO 527-1,-2
Flexural Strength	98.0 MPa	2 mm/min; ISO 178
Flexural Yield Strength	76.0 MPa @Strain 3.5 %	2 mm/min; ISO 178
Flexural Modulus	2400 MPa	2 mm/min; ISO 178
Flexural Strain at Yield	6.8 %	2 mm/min; ISO 178
Izod Impact, Notched (ISO)	12.0 kJ/m² @Thickness 3.20 mm, Temperature -30.0 °C	complete break; b.o. ISO 180-A
	65.0 kJ/m² @Thickness 3.20 mm, Temperature 23.0 °C	partial break; b.o. ISO 180-A
Charpy Impact Unnotched	NB @Temperature 23.0 °C	ISO 179-1eU
	NB @Temperature -30.0 °C	ISO 179-1eU
Puncture Energy	55.0 J @Temperature 23.0 °C	ISO 6603-2
	65.0 J @Temperature -30.0 °C	ISO 6603-2

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	65.0 µm/m-°C @Temperature 23.0 - 55.0 °C	ISO 11359-1,-2
CTE, linear, Transverse to Flow	65.0 µm/m-°C @Temperature 23.0 - 55.0 °C	ISO 11359-1,-2
Thermal Conductivity	0.200 W/m-K	cross-flow; ISO 8302
Hot Ball Pressure Test	135 °C	IEC 60695-10-2
Deflection Temperature at 0.46 MPa (66 psi)	134 °C	ISO 75-1,-2
Deflection Temperature at 1.8 MPa (264 psi)	121 °C	ISO 75-1,-2
Vicat Softening Point	141 °C @Load 5.10 kg	50°C/h; ISO 306
	142 °C @Load 5.10 kg	120°C/h; ISO 306
Flash Point	480 °C	ASTM D 1929
	550 °C	self ignition; ASTM D 1929
Oxygen Index	27 %	Method A; ISO 4589-2

Processing Properties	Original Value	Comments
Melt Temperature	280 °C	Injection molding; ISO 294
Mold Temperature	80.0 °C	Injection molding; ISO 294
Injection Velocity	200 mm/sec	ISO 294

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PB09648 / 150780

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