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Covestro Makrolon® 6265X Polycarbonate
Categories: Polymer; Thermoplastic; Polycarbonate (PC); Polycarbonate, Molded

Material Notes: Makrolon® is extremely robust, lightweight with glass-like transparency and is impact resistant – even at extremely low temperatures. It has a high dimensional stability and is easily molded, yet has excellent heat resistance with a glass transition temperature of up to 148ºC. Grades are available optimized for lighting, medical and food contact, flame-retardant, impact-modified and glass-fiber reinforced grades. Products made out of polycarbonate boast a long life and allow efficient reusability. Stronger and lighter than glass, polycarbonate also provides energy and CO2 emission savings. Furthermore, it reduces product losses due to breakage during distribution and use. Most post-production waste is mechanically recycled into “recyclate grade” polycarbonate blends.

Mechanical property data for samples at 50% RH.

Information provided by Covestro.

Key Words: 6265 X
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Physical PropertiesMetricEnglishComments
Bulk Density 0.640 g/cc
@Temperature 23.0 °C
0.0231 lb/in³
@Temperature 73.4 °F
pellets; ISO 60
Density 1.20 g/cc0.0434 lb/in³ISO 1183-1
Moisture Absorption at Equilibrium 0.12 %
@Temperature 23.0 °C
0.12 %
@Temperature 73.4 °F
ISO 62
Water Absorption at Saturation 0.30 %
@Temperature 23.0 °C
0.30 %
@Temperature 73.4 °F
ISO 62
Linear Mold Shrinkage 0.0065 cm/cm
@Pressure 50.0 MPa
0.0065 in/in
@Pressure 7250 psi
60x60x2 mm; ISO 294-4
Linear Mold Shrinkage, Flow 0.0065 cm/cm
@Pressure 50.0 MPa
0.0065 in/in
@Pressure 7250 psi
60x60x2 mm; ISO 294-4
Melt Flow 20 g/10 min
@Load 1.20 kg,
Temperature 300 °C
20 g/10 min
@Load 2.65 lb,
Temperature 572 °F
ISO 1133
 
Mechanical PropertiesMetricEnglishComments
Ball Indentation Hardness 115 MPa
@Temperature 23.0 °C
16700 psi
@Temperature 73.4 °F
ISO 2039-1
Tensile Strength at Break 65.0 MPa9430 psi50mm/min; ISO 527-1,-2
Tensile Strength, Yield 65.0 MPa9430 psi50mm/min; ISO 527-1,-2
Elongation at Break >= 50 %>= 50 %50mm/min, complete break; ISO 524-1,-2
 120 %120 %50mm/min, complete break; ISO 524-1,-2
Elongation at Yield 6.0 %6.0 %50mm/min; ISO 527-1,-2
Tensile Modulus 2.40 GPa
@Temperature 23.0 °C
348 ksi
@Temperature 73.4 °F
1mm/min, complete break; ISO 527-1,-2
Flexural Strength 96.0 MPa13900 psi2mm/min; ISO 178
 73.0 MPa
@Strain 3.5 %
10600 psi
@Strain 3.5 %
2mm/min; ISO 178
Flexural Modulus 2.40 GPa
@Temperature 23.0 °C
348 ksi
@Temperature 73.4 °F
2mm/min; ISO 178
Flexural Strain at Break 7.0 %7.0 %2 mm/min; ISO 178
Izod Impact, Notched (ISO)  11.0 kJ/m²
@Thickness 3.00 mm,
Temperature -30.0 °C
5.23 ft-lb/in²
@Thickness 0.118 in,
Temperature -22.0 °F
Complete Break; ISO 7391/b.o. ISO 180-A
 15.0 kJ/m²
@Thickness 3.00 mm,
Temperature 23.0 °C
7.14 ft-lb/in²
@Thickness 0.118 in,
Temperature 73.4 °F
ISO 7391/b.o. ISO 180-A
Charpy Impact Unnotched  NB
@Temperature 23.0 °C
NB
@Temperature 73.4 °F
ISO 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  1.20 J/cm²
@Thickness 3.00 mm,
Temperature -30.0 °C
5.71 ft-lb/in²
@Thickness 0.118 in,
Temperature -22.0 °F
ISO 7391/b.o.ISO 179-1eA
 6.50 J/cm²
@Thickness 3.00 mm,
Temperature 23.0 °C
30.9 ft-lb/in²
@Thickness 0.118 in,
Temperature 73.4 °F
ISO 7391/b.o.ISO 179-1eA
Puncture Energy  50.0 J
@Temperature 23.0 °C
36.9 ft-lb
@Temperature 73.4 °F
complete break; ISO 6603-2
 55.0 J
@Temperature -30.0 °C
40.6 ft-lb
@Temperature -22.0 °F
complete break; ISO 6603-2
Tensile Creep Modulus, 1 hour 2200 MPa
@Temperature 23.0 °C
319000 psi
@Temperature 73.4 °F
ISO 899-1
Tensile Creep Modulus, 1000 hours 1900 MPa
@Temperature 23.0 °C
276000 psi
@Temperature 73.4 °F
ISO 899-1
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 1.00e+16 ohm-cm1.00e+16 ohm-cmIEC 60093
Surface Resistance 1.00e+16 ohm1.00e+16 ohmIEC 60093
Dielectric Constant  3.0
@Frequency 1e+6 Hz
3.0
@Frequency 1e+6 Hz
IEC 60250
 3.1
@Frequency 100 Hz
3.1
@Frequency 100 Hz
IEC 60250
Dielectric Strength 34.0 kV/mm
@Thickness 1.00 mm
864 kV/in
@Thickness 0.0394 in
IEC 60243-1
Dissipation Factor  0.00080
@Frequency 100 Hz
0.00080
@Frequency 100 Hz
IEC 60250
 0.0090
@Frequency 1e+6 Hz
0.0090
@Frequency 1e+6 Hz
IEC 60250
Comparative Tracking Index 125 V125 Vsolution B; IEC 60112
 225 V225 Vsolution A; IEC 60112
 
Thermal PropertiesMetricEnglishComments
CTE, linear, Parallel to Flow 65.0 µm/m-°C
@Temperature 23.0 - 55.0 °C
36.1 µin/in-°F
@Temperature 73.4 - 131 °F
ISO 11359-1,-2
CTE, linear, Transverse to Flow 65.0 µm/m-°C
@Temperature 23.0 - 55.0 °C
36.1 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
Hot Ball Pressure Test 136 °C277 °FIEC 60695-10-2
Deflection Temperature at 0.46 MPa (66 psi) 137 °C279 °FISO 75-1,-2
Deflection Temperature at 1.8 MPa (264 psi) 124 °C255 °FISO 75-1,-2
Vicat Softening Point  145 °C
@Load 5.10 kg
293 °F
@Load 11.2 lb
@ 50°C/h; ISO 306
 146 °C
@Load 5.10 kg
295 °F
@Load 11.2 lb
@ 120°C/h; ISO 306
Glass Transition Temp, Tg 144 °C291 °F10°C/min; ISO 11357-1,-2
UL RTI, Electrical 125 °C
@Thickness 1.50 mm
257 °F
@Thickness 0.0591 in
UL RTI, Mechanical with Impact 115 °C
@Thickness 1.50 mm
239 °F
@Thickness 0.0591 in
UL RTI, Mechanical without Impact 125 °C
@Thickness 1.50 mm
257 °F
@Thickness 0.0591 in
Flammability, UL94 V-0V-0UL 94
Flash Point 460 °C860 °FASTM D1929
Oxygen Index 36 %36 %Method A; ISO 4589-2
Glow Wire Ignition Temperature  875 °C
@Thickness 0.750 mm
1610 °F
@Thickness 0.0295 in
IEC 60695-2-13
 900 °C
@Thickness 1.50 mm
1650 °F
@Thickness 0.0591 in
IEC 60695-2-13
 900 °C
@Thickness 3.00 mm
1650 °F
@Thickness 0.118 in
IEC 60695-2-13
Glow Wire Flammability Index  960 °C
@Thickness 0.750 mm
1760 °F
@Thickness 0.0295 in
IEC 60695-2-12
 960 °C
@Thickness 1.50 mm
1760 °F
@Thickness 0.0591 in
IEC 60695-2-12
 960 °C
@Thickness 3.00 mm
1760 °F
@Thickness 0.118 in
IEC 60695-2-12
Ignition Temperature 530 °C986 °FSelf Ignition; ASTM D1929
 
Processing PropertiesMetricEnglishComments
Melt Temperature 280 °C536 °Finjection molding; ISO 294
Mold Temperature 80.0 °C176 °Finjection molding; ISO 294
Injection Velocity 200 mm/sec7.87 in/secinjection molding; ISO 294
 
Descriptive Properties
Application of Flame from small burner (class)K1,F1DIN 53438-1,-3,method K and F; 2.0mm
Burning Rate (mm/min)passed, ISO 3795>=1.0mm, US_FMVSS
Electrolytic Corrosion (rating)A1, IEC 60426
Needle Flame Test (s)120s, IEC 60695-11-5, Method K, 1.5mm
 120s, IEC 60695-11-5, Method K, 2.0 mm
 120s, IEC 60695-11-5, Method K, 3.0 mm
 120s, IEC 60695-11-5, Method F, 1.5 mm
 120s, IEC 60695-11-5, Method F, 2.0mm
 120s, IEC 60695-11-5, Method F, 3.0mm
Puncture Maximum Force (N)5000ISO 6603-2, at 23°C, complete break
 5900ISO 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 view all the property values for this datasheet as they were originally entered into MatWeb.

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