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Ensinger PEI

Covestro Makrolon® 1837 Polycarbonate, Impact Grade
Categories: Polymer; Thermoplastic; Polycarbonate (PC); Polycarbonate, Impact Modified
Material Notes: ISO Shortname: ISO 7391-PC,MP,(,,)-09-9

MVR (300 °C/1.2 kg) 11 cm³/10 min; impact modified; medium viscosity; easy release; injection molding - melt temperature 280 - 320 °C; available in opaque 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.
 
Physical PropertiesMetricEnglishComments
Bulk Density 0.640 g/cc0.0231 lb/in³Pellets; ISO 60
Density 1.19 g/cc0.0430 lb/in³ISO 1183
Moisture Absorption at Equilibrium 0.12 %0.12 %ISO 62
Water Absorption at Saturation 0.40 %0.40 %ISO 62
Linear Mold Shrinkage, Flow 0.0065 cm/cm0.0065 in/in60x60x2 mm; 500 bar; ISO 294-4,2577
Linear Mold Shrinkage, Transverse 0.0070 cm/cm0.0070 in/in60x60x2 mm; 500 bar; ISO 294-4,2577
Melt Flow 12 g/10 min
@Load 1.20 kg,
Temperature 300 °C		12 g/10 min
@Load 2.65 lb,
Temperature 572 °F		ISO 1133
 
Mechanical PropertiesMetricEnglishComments
Ball Indentation Hardness 104 MPa15100 psiISO 2039-1
Tensile Strength at Break 60.0 MPa8700 psi50 mm/min; ISO 527-1/-2
Tensile Strength, Yield 58.0 MPa8410 psi50 mm/min; ISO 527-1/-2
Elongation at Break >= 50 %>= 50 %Nominal, 50 mm/min; ISO 527-1/-2
 120 %120 %50 mm/min; ISO 527-1/-2
Elongation at Yield 5.7 %5.7 %50 mm/min; ISO 527-1/-2
Tensile Modulus 2.20 GPa319 ksi1 mm/min; ISO 527-1/-2
Flexural Strength 86.0 MPa12500 psi2 mm/min; ISO 178
Flexural Yield Strength 68.0 MPa
@Strain 3.5 %		9860 psi
@Strain 3.5 %		2 mm/min; ISO 178
Flexural Modulus 2.20 GPa319 ksi2 mm/min; ISO 178
Flexural Strain at Yield 6.8 %6.8 %2 mm/min; ISO 178
Izod Impact, Notched (ISO)  45.0 kJ/m²
@Temperature -30.0 °C		21.4 ft-lb/in²
@Temperature -22.0 °F		3 mm, Partial break; ISO 7391/b.o. ISO 180-A
 60.0 kJ/m²
@Temperature 23.0 °C		28.6 ft-lb/in²
@Temperature 73.4 °F		3 mm, Partial break; ISO 7391/b.o. ISO 180-A
Charpy Impact Unnotched NBNBISO 179/1eU
 NB
@Temperature -30.0 °C		NB
@Temperature -22.0 °F		ISO 179/1eU
 NB
@Temperature -60.0 °C		NB
@Temperature -76.0 °F		ISO 179-1eU
Charpy Impact, Notched  5.00 J/cm²
@Temperature -30.0 °C		23.8 ft-lb/in²
@Temperature -22.0 °F		3 mm, Partial break; ISO 7391/b.o. ISO 179-1eA
 6.00 J/cm²
@Temperature 23.0 °C		28.6 ft-lb/in²
@Temperature 73.4 °F		3 mm, Partial break; ISO 7391/b.o. ISO 179-1eA
Impact 49004900Puncture - maximum force (N); ISO 6603-2
 5800
@Temperature -30.0 °C		5800
@Temperature -22.0 °F		Puncture - maximum force (N); ISO 6603-2
Puncture Energy 50.0 J36.9 ft-lbISO 6603-2
 55.0 J
@Temperature -30.0 °C		40.6 ft-lb
@Temperature -22.0 °F		ISO 6603-2
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 1.00e+14 ohm-cm1.00e+14 ohm-cmIEC 60093
Surface Resistance 1.00e+16 ohm1.00e+16 ohmIEC 60093
Dielectric Constant  3.1
@Frequency 1e+6 Hz		3.1
@Frequency 1e+6 Hz		IEC 60250
 3.2
@Frequency 100 Hz		3.2
@Frequency 100 Hz		IEC 60250
Dielectric Strength 34.0 kV/mm864 kV/in1 mm; IEC 60243-1
Dissipation Factor  0.0014
@Frequency 100 Hz		0.0014
@Frequency 100 Hz		IEC 60250
 0.013
@Frequency 1e+6 Hz		0.013
@Frequency 1e+6 Hz		IEC 60250
Comparative Tracking Index 100 V100 VCTI M; Solution B; IEC 60112
 225 V225 VSolution A; IEC 60112
 
Thermal PropertiesMetricEnglishComments
CTE, linear, Parallel to Flow 70.0 µm/m-°C
@Temperature 23.0 - 55.0 °C		38.9 µin/in-°F
@Temperature 73.4 - 131 °F		ISO 11359-1/-2
CTE, linear, Transverse to Flow 70.0 µm/m-°C
@Temperature 23.0 - 55.0 °C		38.9 µin/in-°F
@Temperature 73.4 - 131 °F		ISO 11359-1/-2
Thermal Conductivity 0.200 W/m-K1.39 BTU-in/hr-ft²-°Fcross-flow; ISO 8302
Deflection Temperature at 0.46 MPa (66 psi) 134 °C273 °FISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi) 121 °C250 °FISO 75-1/-2
Vicat Softening Point 141 °C286 °F50°C/h 50N; ISO 306
 143 °C
@Load 5.10 kg		289 °F
@Load 11.2 lb		120°C/hr; ISO 306
Glass Transition Temp, Tg 143 °C289 °FISO 11357-1,-2
Flammability, UL94 HB
@Thickness 0.750 mm		HB
@Thickness 0.0295 in		IEC 60695-11-10
Flash Point 450 °C842 °FASTM D1929
Oxygen Index 30 %30 %Method A; ISO 4589-1/-2
Glow Wire Ignition Temperature  825 °C
@Thickness 38.1 mm		1520 °F
@Thickness 1.50 in		IEC 60695-2-13
 825 °C
@Thickness 50.8 mm		1520 °F
@Thickness 2.00 in		IEC 60695-2-13
 850 °C
@Thickness 76.2 mm		1560 °F
@Thickness 3.00 in		IEC 60695-2-13
Glow Wire Flammability Index  850 °C
@Thickness 19.0 mm		1560 °F
@Thickness 0.750 in		IEC 60695-2-12
 875 °C
@Thickness 38.1 mm		1610 °F
@Thickness 1.50 in		IEC 60695-2-12
 900 °C
@Thickness 76.2 mm		1650 °F
@Thickness 3.00 in		IEC 60695-2-12
Ignition Temperature 530 °C986 °FSelf Ignition; ASTM D1929
 
Processing PropertiesMetricEnglishComments
Melt Temperature 290 °C554 °FInjection Molding; ISO 294
Mold Temperature 80.0 °C176 °FInjection Molding; ISO 294
Injection Velocity 200 mm/sec7.87 in/secISO 294
 
Descriptive Properties
Needle flame test10 sMethod K, 3 mm; IEC 60695-11-5
 120 sMethod F, 1.5 mm; IEC 60695-11-5
 120 sMethod F, 2 mm; IEC 60695-11-5
 120 sMethod F, 3 mm; IEC 60695-11-5
 5 sMethod K, 1.5 mm; IEC 60695-11-5
 5 sMethod K, 2 mm; IEC 60695-11-5
Resistance to heat134°Cball pressure test; IEC 60695-10-2

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