Covestro Makrolon® 1248 Polycarbonate, Impact Grade

Login to see your most recently viewed materials here. Or if you don't have an account with us yet, then click here to register.

(Viewing data as-entered. Click here to return)

Covestro Makrolon® 1248 Polycarbonate, Impact Grade
Categories:	Polymer; Thermoplastic; Polycarbonate (PC); Polycarbonate, Impact Modified
Material Notes:	ISO 7391-PC,MP,(,,)-09-9 MVR (300 °C/1.2 kg) 7.0 cm³/10 min; food contact quality; medium viscosity; impact modified; injection molding - melt temperature 280 - 320 °C; available in light colors only As of 1 September 2015, Bayer MaterialScience was separated from Bayer AG and officially adopted its new name – Covestro.
Vendors:	No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
Printer friendly version Download as PDF Download to Excel (requires Excel and Windows) Export data to your CAD/FEA program Add to Folder:

Physical Properties	Original Value	Comments

Bulk Density	0.640 g/cc	pellets; ISO 60
Density	1.20 g/cc	ISO 1183
Moisture Absorption at Equilibrium	0.12 %	ISO 62
Water Absorption at Saturation	0.40 %	ISO 62
Linear Mold Shrinkage, Flow	0.0075 cm/cm	60x60x2 mm; 500 bar; ISO 294-4,2577
Linear Mold Shrinkage, Transverse	0.0080 cm/cm	60x60x2 mm; 500 bar; ISO 294-4,2577
Melt Flow	7.5 g/10 min @Load 1.20 kg, Temperature 300 °C	ISO 1133

Mechanical Properties	Original Value	Comments
Ball Indentation Hardness	108 MPa	ISO 2039-1
Tensile Strength at Break	70.0 MPa	50 mm/min; ISO 527-1/-2
Tensile Strength, Yield	61.0 MPa	50 mm/min; ISO 527-1/-2
Elongation at Break	>= 50 %	Nominal, 50 mm/min; ISO 527-1/-2
	130 %	50 mm/min; b.o. ISO 527-1/-2
Elongation at Yield	6.0 %	50 mm/min; ISO 527-1/-2
Tensile Modulus	2250 MPa	50 mm/min; ISO 527-1/-2
Flexural Strength	88.0 MPa	2 mm/min; ISO 178
Flexural Yield Strength	68.0 MPa @Strain 3.5 %	2 mm/min; ISO 178
Flexural Modulus	2.25 GPa	2 mm/min; ISO 178
Flexural Strain at Yield	6.8 %	2 mm/min; ISO 178
Izod Impact, Notched (ISO)	30.0 kJ/m² @Temperature -30.0 °C	3 mm, Partial break; ISO 7391/b.o. ISO 180-A
	65.0 kJ/m² @Temperature 23.0 °C	3 mm, Partial break; ISO 7391/b.o. ISO 180-A
Charpy Impact Unnotched	NB	ISO 179/1eU
	NB @Temperature -30.0 °C	ISO 179/1eU
	NB @Temperature -60.0 °C	ISO 179-1eU
Charpy Impact, Notched	6.00 J/cm² @Temperature -30.0 °C	3 mm; ISO 7391/b.o. ISO 179-1eA
	7.00 J/cm² @Temperature 23.0 °C	3 mm, Partial break; ISO 7391/b.o. ISO 179-1eA
Impact	5200	Puncture - maximum force (N); ISO 6603-2
	6100 @Temperature -30.0 °C	Puncture - maximum force (N); ISO 6603-2
Puncture Energy	55.0 J	ISO 6603-2
	60.0 J @Temperature -30.0 °C	ISO 6603-2

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+14 ohm-cm	IEC 60093
Surface Resistance	1.00e+16 ohm	IEC 60093
Dielectric Constant	3.0 @Frequency 1e+6 Hz	IEC 60250
	3.1 @Frequency 100 Hz	IEC 60250
Dielectric Strength	34.0 kV/mm	1 mm; IEC 60243-1
Dissipation Factor	0.0012 @Frequency 100 Hz	IEC 60250
	0.012 @Frequency 1e+6 Hz	IEC 60250
Comparative Tracking Index	125 V	CTI M; 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	ISO 8302
Deflection Temperature at 0.46 MPa (66 psi)	139 °C	ISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi)	125 °C	ISO 75-1/-2
Vicat Softening Point	146 °C	50°C/h 50N; ISO 306
	148 °C @Load 5.10 kg	120°C/hr; ISO 306
Glass Transition Temp, Tg	148 °C	ISO 11357-1,-2
Flammability, UL94	HB @Thickness 1.50 mm	IEC 60695-11-10
Flash Point	430 °C	ASTM D1929
Oxygen Index	30 %	ISO 4589-1/-2
Glow Wire Ignition Temperature	800 °C @Thickness 0.750 mm	IEC 60695-2-13
	875 °C @Thickness 1.50 mm	IEC 60695-2-13
	875 °C @Thickness 3.00 mm	IEC 60695-2-13
Glow Wire Flammability Index	850 °C @Thickness 0.750 mm	IEC 60695-2-12
	850 °C @Thickness 1.50 mm	IEC 60695-2-12
	900 °C @Thickness 3.00 mm	IEC 60695-2-12
Ignition Temperature	540 °C	Self Ignition; ASTM D1929

Optical Properties	Original Value	Comments
Refractive Index	1.586	ISO 486
Transmission, Visible	88 % @Thickness 76.2 mm	ISO 13468-2
	89 % @Thickness 25.4 mm	ISO 13468-2
	89 % @Thickness 50.8 mm	ISO 13468-2

Processing Properties	Original Value	Comments
Melt Temperature	300 °C	Injection Molding; ISO 294
Mold Temperature	80.0 °C	Injection Molding; ISO 294
Injection Velocity	200 mm/sec	ISO 294

Descriptive Properties
Electrolytic corrosion	A1	IEC 60426
halving interval	45°C	tensile strength, 1 mm; IEC 60216-1
Needle flame test	10 s	Method K, 3 mm; IEC 60695-11-5
	120 s	Method F, 3 mm; IEC 60695-11-5
	5 s	Method K, 2 mm; IEC 60695-11-5
	60 s	Method F, 1.5 mm; IEC 60695-11-5
	60 s	Method F, 2 mm; IEC 60695-11-5
Resistance to heat	138°C	ball pressure test; IEC 60695-10-2
Temperature index	455°C	tensile impact strength, 20000 h, 1 mm; IEC 60216-1

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.

Users viewing this material also viewed the following:
Covestro Makrolon® 1260 Polycarbonate, Impact Grade
Covestro Makrolon® 2608 Polycarbonate
Covestro Makrolon® 1248 MAS068 Polycarbonate
Covestro Makrolon® 1804 Polycarbonate
Covestro Makrolon® 1837 Polycarbonate, Impact Grade

PB09891 / 92731

	Advertise with MatWeb!
	Data sheets for over 180,000 metals, plastics, ceramics, and composites.
	HOME • SEARCH • TOOLS • SUPPLIERS • FOLDERS • ABOUT US • FAQ • LOG IN

System Message