HMWPE Polyethylene 500 Grade
Polyethylene 500 Grade is a semi-crystalline, thermoplastic engineering material with high toughness and good low temperature properties
Key Features:
Tough
Very low water absorption
Good sliding properties
Resistant to dilute acids, cleaning agents, numerous solvents
Very good electrical insulation
Difficult to bond
Easily welded
Low density
Temperature Range:
up to +75ºC, +90ºC short term.
Applications:
Wear strips, chain guides, chute linings, buffers, cutting boards, change parts & protection strips.
Availability:
| Colour: |
Black, green, red, blue and yellow. Other colours available upon request. |
| Sheet size (mm): |
2000 x 1000, 3000 x 1220. |
| Thickness (mm): |
5 to 150. |
| Rod dia (mm): |
8 to 500. |
Also available upon request; Regenerated grade, higher temperature grade (up to +130ºC) & metal detectable grades.
Technical Information:
Information to be used as a guide only. It corresponds with our current knowledge and indicates possible applications. We cannot guarentee suitability for a specific application. Unless otherwise stated these values represent averages taken from injection moulded samples.
| Properties |
Unit |
Test Method DIN ASTM |
Result |
| Mechanical |
- |
- |
- |
| Density |
g/cm³ |
53 479 |
0.95-0.96 |
| Tensile strength at yield |
MPa |
53 455 |
24-31 |
| Tensile strength at break |
MPa |
53 455 |
36 |
| Elongation at break |
% |
53 455 |
400-800 |
| Modulus of elasticity in tension |
MPa |
53 457 |
1000-1400 |
| Modulus of elasticity in flexure |
MPa |
53 457 |
1000-1400 |
| Ball indentation hardness |
MPa |
53 456 |
45-60 |
| Impact strength (Charpy) |
kJ/m2 |
53 453 |
no break |
| Creep rupture strength after 1000 hrs with static load |
MPa |
- |
12.5 |
| Time yield limit for 1% elongation after 1000 hrs. |
MPa |
- |
3 |
Coefficient of friction against hardened and ground steel
p = 0,05 N/mm², v = 0,6 m/s |
– |
- |
0.29 |
| Wear conditions as above |
µm/km |
- |
- |
| Thermal |
- |
- |
- |
| Crystalline melting point |
°C |
53 736 |
128-133 |
| Glass transition temperature |
°C |
53 736 |
-95 |
| Heat distortion temperature Method A |
°C |
ISO 75 |
42-49 |
| Heat distortion temperature Method B |
°C |
ISO 75 |
70-85 |
| Max. service temperature short term |
°C |
- |
120 |
| Max. service temperature long term |
°C |
- |
90 |
| Coefficient of thermal conductivity |
W/(m . K) |
- |
0.35-0.43 |
| Specific heat |
J/(g . K) |
- |
1.7-2 |
| Coefficient of thermal expansion |
10-5/K |
- |
13-15 |
| Electrical |
- |
- |
- |
| Dielectric constant at 105 Hz |
- |
53 483 |
2.4 |
| Dielectric loss factor at 105 Hz |
- |
53 483 |
0.0002 |
| Specific volume resistance |
Ω . cm |
53 482 |
>1016 |
| Surface resistance |
O |
53 482 |
>1014 |
| Dielectric strength 1 mm |
kV/mm |
53 481 |
>50 |
| Tracking resistance |
- |
53 480 |
KA 3c |
| Miscellaneous |
- |
- |
- |
| Moisture absorption: Equilibrium in standard atmosphere (23 °C / 50 % relative humidity) |
% |
53 714 |
- |
| Water absorption at saturation at 23 °C |
% |
53 495 |
0.02 |
| Resistance to hot water, washing soda |
- |
- |
resistant |
| Flammability |
- |
UL 94 |
HB |
| Resistance to weathering |
- |
- |
Natural: not resistant,
Black: resistance |
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