Covestro Makrolon® 1837 MAS081 Polycarbonate

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Covestro Makrolon® 1837 MAS081 Polycarbonate
Categories:	Polymer; Thermoplastic; Polycarbonate (PC); Polycarbonate, Molded
Material Notes:	Impact modified; medium viscosity; easy release; injection molding; available in opaque colors only Mechanical property data for samples at 50% RH. Information provided by Covestro.
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Physical Properties	Original Value	Comments

Bulk Density	0.640 g/cc @Temperature 23.0 °C	pellets; ISO 60
Density	1.19 g/cc	ISO 1183-1
Moisture Absorption at Equilibrium	0.12 % @Temperature 23.0 °C	ISO 62
Water Absorption at Saturation	0.40 % @Temperature 23.0 °C	ISO 62
Linear Mold Shrinkage	0.0070 in/in @Pressure 50.0 MPa	60x60x2 mm; ISO 294-4
Linear Mold Shrinkage, Flow	0.0065 in/in @Pressure 50.0 MPa	60x60x2 mm; ISO 294-4
Melt Flow	8.5 g/10 min @Load 1.20 kg, Temperature 300 °C	ISO 1133

Mechanical Properties	Original Value	Comments
Ball Indentation Hardness	15000 psi @Temperature 23.0 °C	ISO 2039-1
Tensile Strength at Break	60.0 MPa	50mm/min; ISO 527-1,-2
Tensile Strength, Yield	58.0 MPa	50mm/min; ISO 527-1,-2
Elongation at Break	>= 50 %	50mm/min, complete break; ISO 524-1,-2
	120 %	50mm/min; b.o. ISO 527-1,-2
Elongation at Yield	5.7 %	50mm/min; ISO 527-1,-2
Tensile Modulus	2200 MPa @Temperature 23.0 °C	1mm/min, complete break; ISO 527-1,-2
Flexural Strength	86.0 MPa	2mm/min; ISO 178
	68.0 MPa @Strain 3.5 %	2mm/min; ISO 178
Flexural Modulus	2200 MPa @Temperature 23.0 °C	2mm/min; ISO 178
Flexural Strain at Break	6.8 %	2 mm/min; ISO 178
Izod Impact, Notched (ISO)	45.0 kJ/m² @Thickness 3.00 mm, Temperature -30.0 °C	Complete Break; ISO 7391/b.o. ISO 180-A
	60.0 kJ/m² @Thickness 3.00 mm, Temperature 23.0 °C	Partial Break; ISO 7391/b.o. ISO 180-A
Charpy Impact Unnotched	NB @Temperature 23.0 °C	ISO 179-1eU
	NB @Temperature -30.0 °C	ISO 179-1eU
	NB @Temperature -60.0 °C	ISO 179-1eU
Charpy Impact, Notched	50.0 kJ/m² @Thickness 3.00 mm, Temperature -30.0 °C	ISO 7391/b.o.ISO 179-1eA
	60.0 kJ/m² @Thickness 3.00 mm, Temperature 23.0 °C	ISO 7391/b.o.ISO 179-1eA
Puncture Energy	50.0 J @Temperature 23.0 °C	complete break; ISO 6603-2
	55.0 J @Temperature -30.0 °C	complete break; ISO 6603-2

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+16 ohm-cm	IEC 60093
Surface Resistance	1.00e+16 ohm	IEC 60093
Dielectric Constant	3.1 @Frequency 1e+6 Hz	IEC 60250
	3.2 @Frequency 100 Hz	IEC 60250
Dielectric Strength	34.0 kV/mm @Thickness 1.00 mm	IEC 60243-1
Dissipation Factor	0.0014 @Frequency 100 Hz	IEC 60250
	0.0125 @Frequency 1e+6 Hz	IEC 60250
Comparative Tracking Index	100 V	solution B; IEC 60112
	225 V	solution A; IEC 60112

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	70.0 µm/m-°C @Temperature 23.0 - 55.0 °C	ISO 11359-1,-2
CTE, linear, Transverse to Flow	70.0 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	134 °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
	143 °C @Load 5.10 kg	@ 120°C/h; ISO 306
Flammability, UL94	HB @Thickness 0.750 mm	UL 94
Flash Point	450 °C	ASTM D1929
Oxygen Index	30 %	Method A; ISO 4589-2
Glow Wire Ignition Temperature	825 °C @Thickness 1.50 mm	IEC 60695-2-13
	825 °C @Thickness 2.00 mm	IEC 60695-2-13
	850 °C @Thickness 3.00 mm	IEC 60695-2-13
Glow Wire Flammability Index	850 °C @Thickness 0.750 mm	IEC 60695-2-12
	875 °C @Thickness 1.50 mm	IEC 60695-2-12
	900 °C @Thickness 3.00 mm	IEC 60695-2-12
Ignition Temperature	530 °C	Self Ignition; ASTM D1929

Processing Properties	Original Value	Comments
Melt Temperature	290 °C	injection molding; ISO 294
Mold Temperature	80.0 °C	injection molding; ISO 294
Injection Velocity	200 mm/sec	injection molding; ISO 294

Descriptive Properties
Burning Rate (mm/min)	passed, ISO 3795	>=1.0mm, US_FMVSS
Needle Flame Test (s)	10	IEC 60695-11-5, Method K, 3.0 mm
	120	IEC 60695-11-5, Method F, 1.5 mm
	120	IEC 60695-11-5, Method F, 2.0mm
	120	IEC 60695-11-5, Method F, 3.0mm
	5	IEC 60695-11-5, Method K, 1.5mm
	5	IEC 60695-11-5, Method K, 2.0 mm
Puncture Maximum Force (N)	4900	ISO 6603-2, at 23°C, complete break
	5800	ISO 6603-2, at -30°C, complete break

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 go back to viewing the property data in MatWeb's normal format.

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