POM sheet (Polyoxymethylene Sheet) is a thermoplastic engineering plastic sheet made of polyoxymethylene (POM) resin through extrusion or calendering. It is known as "Super Steel" because it has strength, rigidity, wear resistance and dimensional stability comparable to metal, while also having the lightweight and easy processing properties of plastic. It is widely used in the fields of automobiles, electronics, precision machinery, medical equipment, etc.
| Properties |
Standard |
Unit |
Test Data |
| Specific gravity |
ISO 1183 |
g/cm3 |
1.41 |
| Water absorption |
ISO 62 |
% |
0.2 |
| Flammability |
UL94 |
|
HB |
| Mechancial Properties |
|
|
|
| Yield stress |
ISO 527 |
Mpa |
68.5 |
| Elongation at break |
ISO 527 |
% |
10 |
| Tensile modulus of elasticity |
ISO 527 |
Mpa |
2890 |
| Notched impact strength |
ISO 179 |
kJ/m2 |
6.93 |
| Flexural strength |
ISO 178 |
Mpa |
104 |
| Flexural modulus |
ISO 178 |
kJ/m2 |
3270 |
| Shore hardness |
ISO 868 |
scale D |
88 |
Specific application areas
Precision machinery and automobile manufacturing
Guide rails and sliders: linear guide rails for automation equipment, sliders for CNC machine tool workbenches (high rigidity + low friction, friction coefficient <0.3, lifespan >100,000 reciprocating motions).
Pads and support plates: support plates for automobile engine parts, support plates for industrial robot joints (high strength + fatigue resistance, replacing metal to reduce weight by more than 30%).
Wear-resistant linings: conveyor belt guide linings, gear box cover plates (wear resistance + dimensional stability, wear <15 mm³/1000 revolutions).
Electronic and electrical appliances
Switch and connector substrates: substrates for home appliance power switches, electronic connector fixing plates (insulation + wear resistance, plug-in and unplug resistance >10,000 times).
Structural support plates: printer/copier frame support plates, sweeping robot chassis support plates (high precision + low deformation, tolerance ±0.05mm).
Heat dissipation components: LED lamp heat dissipation substrate (needs to be matched with metal plating, such as nickel plating/copper plating, to improve thermal conductivity).
Industrial equipment and automation
Conveying system components: guide plate of automated production line, support plate of conveyor belt (high wear resistance + self-lubricating, reducing maintenance frequency).
Valve and pump body components: chemical pump fixing plate, valve sealing plate (chemical corrosion resistance + dimensional stability, replacing metal to reduce leakage risk).
Since the industrial production of POM in the 1960s, it has been called "steel-based plastic" because its performance is between metal and ordinary plastic. POM Sheet, as a sheet form, is widely used in the fields of automobiles, electronics and precision machinery due to its high dimensional stability, excellent wear resistance and self-lubrication, especially in scenes requiring high precision, high wear resistance and long-term stability.