POM-C ESD vs POM-H
Polymer · grade comparison
POM-C ESD and POM-H are both polymer grades. POM-H is the stronger of the two: yield strength 70 MPa (10.2 ksi) against 50 MPa (7.25 ksi) for POM-C ESD, about 40% more; tensile strength follows at 70 MPa (10.2 ksi) vs 52 MPa (7.54 ksi). POM-H is the more ductile: elongation 30% versus 12% for POM-C ESD, and POM-H is harder (86 Shore D vs 80 Shore D). POM-C ESD conducts heat better (0.38 W/m·K vs 0.31 W/m·K). On the shop floor, POM-H machines more easily (excellent vs very good) and POM-H sits in a lower cost tier (standard, $$) than POM-C ESD (premium, $$$).
POM-HChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
POM-C ESD vs POM-H: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all polymer grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all polymer grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Compressive Strength
Flexural Strength
Shear Strength
Izod Impact, Notched
Hardness, Shore D
Hardness, Rockwell M
Hardness, Rockwell R
Fracture Toughness (K_IC)
Same in both: Shear Modulus 1.1 GPa0.16 Msi · Bulk Modulus 4 GPa0.58 Msi · Poisson's Ratio 0.37 · Compressive Modulus 2.9 GPa0.42 Msi · Flexural Modulus 2.9 GPa0.42 Msi
Physical
Density and transition temperatures.
Density
Melting Temperature (Tm)
Water Absorption (24 h)
Water Absorption (Saturation)
Same in both: Glass Transition (Tg) -60°C-76 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Min Service Temperature
Heat Deflection Temp. @ 0.45 MPa
Vicat Softening Point (B50)
Same in both: Specific Heat Capacity 1,470 J/kg·K0.35 BTU/lb·°F · Heat Deflection Temp. @ 1.8 MPa 100°C212 °F · Limiting Oxygen Index 15% · Max Service Temperature (short-term) 140°C284 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Volume Resistivity
Surface Resistivity
Dielectric Strength
Dielectric Constant (1 MHz)
Dissipation Factor (1 MHz)
Comparative Tracking Index (CTI)
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
UV / Weathering Resistance
Same in both: Corrosion Resistance 72 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Formability (cold)
Polishability
Mold Shrinkage
Melt Flow Rate
Processing Melt Temperature (typ.)
Same in both: Mold Temperature (typ.) 90°C194 °F
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Same in both: Typical Recycled Content 0%
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Modulus of Resilience
Thermal Diffusivity
Same in both: Specific Stiffness (E / density) 2.2 MN·m/kg · Thermal Shock Resistance Index 0
Strength versus weight
Yield strength against density for every polymer grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Manufacturing and finishing
| Capability | POM-C ESD | POM-H |
|---|---|---|
| CNC machining | — | Yes |
| Sheet metal | — | Yes |
| Injection molding | — | Yes |
| Default condition | — | Unfilled |
| Relative cost | $$$ Premium | $$ Standard |
| Min. machined wall | — | 0.5 mm |
| Best machined surface | — | Ra 0.8 µm |
| Chrome Plating (Plastic) | — | Yes |
| EMI Shielding Coating | — | Yes |
| Painting | — | Yes |
| Soft Touch Coating | — | Yes |
| Spray Painting | — | Yes |
| UV Coating | — | Yes |
POM-C ESD vs POM-H — frequently asked
Is POM-H stronger than POM-C ESD?
Yes. POM-H has a typical yield strength of 70 MPa (10.2 ksi) against 50 MPa (7.25 ksi) for POM-C ESD — about 40% more. Tensile strength is 70 MPa (10.2 ksi) vs 52 MPa (7.54 ksi).
Which is cheaper, POM-C ESD or POM-H?
POM-H is the lower-cost material: it sits in the standard tier ($$) while POM-C ESD is premium ($$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
Which is easier to machine, POM-C ESD or POM-H?
POM-H. Its machinability rates excellent (90/100) against very good (80/100) for POM-C ESD; for welding the order is POM-H first (fair, 40/100) then POM-C ESD (fair, 35/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in POM-C ESD and POM-H side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.
Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.