Covestro Makrolon® 3103 Polycarbonate

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Covestro Makrolon® 3103 Polycarbonate (discontinued **)
Categories:	Polymer; Thermoplastic; Polycarbonate (PC); Polycarbonate, UV Stabilized
Material Notes:	Injection molding and extrusion grade with high viscosity, UV stabilized, special grade for sheets. Information provided by Bayer. As of 1 September 2015, Bayer MaterialScience was separated from Bayer AG and officially adopted its new name – Covestro.
Key Words:	PC
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Physical Properties	Original Value	Comments

Density	1.20 g/cc
Moisture Absorption at Equilibrium	0.15 %	50% RH
Water Absorption at Saturation	0.35 %
	0.35 %
Linear Mold Shrinkage	0.0060 - 0.0080 cm/cm	ASTM D955
Melt Flow	6.0 g/10 min @Load 1.20 kg, Temperature 300 °C

Mechanical Properties	Original Value	Comments
Hardness, Rockwell M	75	ASTM D785
Hardness, Rockwell R	118	ASTM D785
Tensile Strength, Ultimate	72.0 MPa	ASTM D638
Tensile Strength, Yield	63.0 MPa
Elongation at Break	125 %	ASTM D638
Elongation at Yield	6.0 %
Tensile Modulus	2.40 GPa
Flexural Yield Strength	86.0 MPa	at 5% strain; ASTM D790
Flexural Modulus	2.30 GPa	ASTM D790
Izod Impact, Notched	9.60 J/cm @Thickness 3.20 mm	ASTM D256
Charpy Impact Unnotched	NB
Tensile Creep Modulus, 1 hour	2200 MPa
Tensile Creep Modulus, 1000 hours	1900 MPa

Electrical Properties	Original Value	Comments
Electrical Resistivity	>= 1.00e+15 ohm-cm
Surface Resistance	1.00e+15 ohm
Dielectric Constant	2.9 @Frequency 1e+6 Hz
	3.0 @Frequency 100 Hz
Dielectric Strength	30.0 kV/mm
Dissipation Factor	0.0010 @Frequency 100 Hz
	0.010 @Frequency 1e+6 Hz
Arc Resistance	120 sec	Tungsten Electrodes; ASTM D495
Comparative Tracking Index	275 V
Hot Wire Ignition, HWI	30 - 60 sec @Thickness 3.00 mm	UL Rating PLC 2 (30-60 sec)
High Amp Arc Ignition, HAI	>= 120 arcs @Thickness 1.50 mm	UL Rating PLC 0 (>120 arcs)
High Voltage Arc-Tracking Rate, HVTR	10.0 - 25.4 mm/min @Thickness 1.50 mm	UL Rating PLC 1 (10-25.4 mm/min.)

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	70.0 µm/m-°C @Temperature 20.0 °C
CTE, linear, Transverse to Flow	70.0 µm/m-°C @Temperature 20.0 °C
Specific Heat Capacity	1.17 J/g-°C	ASTM D2766
Thermal Conductivity	0.200 W/m-K	ASTM C177
Deflection Temperature at 0.46 MPa (66 psi)	142 °C
Deflection Temperature at 1.8 MPa (264 psi)	132 °C
Vicat Softening Point	148 °C
Glass Transition Temp, Tg	148 °C
UL RTI, Electrical	125 °C @Thickness 1.50 mm
UL RTI, Mechanical with Impact	115 °C @Thickness 1.50 mm
UL RTI, Mechanical without Impact	125 °C @Thickness 1.50 mm
Flammability, UL94	V-2 @Thickness 1.60 mm
Oxygen Index	26 %

Optical Properties	Original Value	Comments
Refractive Index	1.586	ASTM D542
Haze	1.0 % @Thickness 3.20 mm	ASTM D1003
Transmission, Visible	88 % @Thickness 3.20 mm	ASTM D1003

**
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PBA440 / 26941

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