Test items | Unit | Test method | Duct Pipe (E-type) standard value | |
Physical properties | Specific gravity | ASTM D-792 | 1.45 | |
Rockwell hardness | R scale | ASTM D-785 | 110-150 | |
Mechanical properties | Tensile strength | MPa (kgf/cm2) |
JIS K6741 | 47 or more (480 or more) |
Elongation | % | JIS K6741 | 100-150 | |
Bending strength | MPa (kgf/cm2) |
ASTM D-790 | 88.3 (900) |
|
Flexural modulus of elasticity | MPa (kgf/cm2) |
ASTM D-790 | 3.14×103 (3.2×104) |
|
Charpy impact strength | kJ/m2 (kgf/cm2) |
JIS K7111 | 5.9-7.8 (6-8) |
|
Thermal properties | Linear expansion rate | I/°C | ASTM D-696 | 7×10-5 |
Specific heat | J/kg·K (cal/g·°C) |
- | 840-1260 (0.2-0.3) |
|
Thermal conductivity | W/m·K +A2:E17hr·°C) |
- | 0.14-0.16 (0.12-0.14) |
|
Softening temperature | °C | JIS K6745 | 75 | |
Combustion properties | - | JIS K6745 | Self-extinguishing | |
Electrical properties | Volume intrinsic resistance | Ω·cm | ASTM D-257 | 1016 or more |
Withstand voltage | kV/mm | ASTM D-149 | 40 or more |