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Metal
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GE Plastics LEXAN 121R Polycarbonate
| Physical Properties |
Metric |
English |
Comments |
|
|
| Density |
1.2 g/cc |
0.0434 lb/in³ |
ASTM D 792 |
| Water Absorption |
0.15 % |
0.15 % |
24 hours @ 73F; ASTM
D 570 |
| Water Absorption at Saturation |
0.35 % |
0.35 % |
Equilibrium, 73F;
ASTM D 570 |
| Water Absorption at Saturation |
0.58 % |
0.58 % |
Equilibrium, 212F;
ASTM D 570 |
| Linear Mold Shrinkage |
0.005 - 0.007 cm/cm |
0.005 - 0.007 in/in |
Flow, 0.125 inch;
ASTM D 955 |
| Melt Flow |
17.5 g/10 min |
17.5 g/10 min |
300C/1.2 kgf (O);
ASTM D 1238 |
Mechanical Properties |
|
|
| Hardness, Rockwell M |
70 |
70 |
ASTM D 785 |
| Hardness, Rockwell R |
118 |
118 |
ASTM D 785 |
| Tensile Strength @ Break |
68.9 MPa |
10000 psi |
Type I, 2.0 in/min;
ASTM D 638 |
| Tensile Strength @ Yield |
62.1 MPa |
9000 psi |
Type I, 2.0 in/min;
ASTM D 638 |
| Elongation at Break |
125 % |
125 % |
Type I, 2.0 in/min;
ASTM D 638 |
| Elongation at Yield |
7 % |
7 % |
Type I, 2.0 in/min;
ASTM D 638 |
| Flexural Modulus |
2.34 GPa |
340 ksi |
0.05 in/min, 2"
span; ASTM D 790 |
| Flexural Yield Strength |
96.5 MPa |
14000 psi |
0.05 in/min, 2"
span; ASTM D 790 |
| Fatigue Strength |
6.89 MPa |
1000 psi |
Fatigue Limit, 2.5 MM
cycles; ASTM D 671 |
| Izod Impact, Unnotched |
32 J/cm |
60 ft-lb/in |
73F; ASTM D 4812 |
| Gardner Impact @ 23°C |
62.1 J |
45.8 ft-lb |
Instrumented Impact
Energy @ peak, 73F; ASTM D 3763 |
| Tensile Impact Strength |
546 kJ/m² |
260 ft-lb/in² |
Type "S";
ASTM D 1822 |
| Falling Dart Impact |
169 J |
125 ft-lb |
73F; ASTM D 3029 |
| Taber Abrasion, mg/1000 Cycles |
10 |
10 |
CS-17, 1 kg; ASTM D
1044 |
| Izod Impact, Notched |
6.94 J/cm |
13 ft-lb/in |
73F; ASTM D 256 |
Electrical Properties |
|
|
| Volume Resistivity |
Min 1e+017 ohm-cm |
Min 1e+017 ohm-cm |
ASTM D 257 |
| Dielectric Constant |
2.96 |
2.96 |
1 MHz; ASTM D 150 |
| Dielectric Constant |
3.17 |
3.17 |
60 Hz; ASTM D 150 |
| Dielectric Strength |
15 kV/mm |
380 V/mil |
in air, 125 mils;
ASTM D 149 |
| Dissipation Factor |
0.0009 |
0.0009 |
60 Hz; ASTM D 150 |
| Dissipation Factor |
0.01 |
0.01 |
1 MHz; ASTM D 150 |
| Comparative Tracking Index |
250 - 400 V |
250 - 400 V |
(+/- 0.125 inch); PLC
Code 2; UL 746A |
| Hot Wire Ignition, HWI |
30 - 60 sec |
30 - 60 sec |
(+/- 0.125 inch); PLC
Code 2; UL 746A |
| High Amp Arc Ignition, HAI |
60 - 120 arcs |
60 - 120 arcs |
Surface (+/- 0.125
inch); PLC Code 1; UL 746A |
| High Voltage Arc-Tracking Rate,
HVTR |
25.4 - 80 mm/min |
1 - 3.15 in/min |
(+/- 0.125 inch); PLC
Code 2; UL 746A |
Thermal Properties |
|
|
| CTE, linear 68°F |
68.4 µm/m-°C |
38 µin/in-°F |
Flow, -40F to 200F;
ASTM E 831 |
| Heat Capacity |
1.26 J/g-°C |
0.3 BTU/lb-°F |
ASTM C 351 |
| Thermal Conductivity |
0.25 W/m-K |
1.74 BTU-in/hr-ft²-°F |
ASTM C 177 |
| Deflection Temperature at 0.46 MPa
(66 psi) |
138 °C |
280 °F |
0.250 inch,
unannealed; ASTM D 648 |
| Deflection Temperature at 1.8 MPa
(264 psi) |
129 °C |
265 °F |
0.250 inch,
unannealed; ASTM D 648 |
| Vicat Softening Point |
154 °C |
310 °F |
Rate B; ASTM D 1525 |
| UL RTI, Electrical |
130 °C |
266 °F |
UL 746B |
| UL RTI, Mechanical with Impact |
130 °C |
266 °F |
UL 746B |
| UL RTI, Mechanical without Impact |
130 °C |
266 °F |
UL 746B |
| Flammability, UL94 |
HB |
HB |
Tested Thickness =
0.028 in. |
Optical Properties |
|
|
| Refractive Index |
1.586 |
1.586 |
ASTM D 542 |
| Haze |
1 % |
1 % |
0.100 inch; ASTM D
1003 |
| Transmission, Visible |
88 % |
88 % |
0.100 inch; ASTM D
1003 |
Descriptive Properties |
|
|
| Radiant Panel Listing |
UL tested |
|
| UL File Number, USA |
E121562 |
|
| UV-light, water exposure/immersion |
F2 |
UL746C |
| |
Hoses
Square Watermelon Growing Cases
Acrylic Colored Pig
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