POM ESD vs POM GF30
Polymer · POM grade comparison
POM ESD and POM GF30 are two grades of the same polymer grade, POM: ESD (carbon-black conductive / antistatic) versus GF30 (30% glass fiber reinforced). The chemistry is identical, so every difference below comes from the condition. POM GF30 is the stronger of the two: yield strength 62 MPa (8.99 ksi) against 47 MPa (6.82 ksi) for POM ESD, about 32% more; tensile strength follows at 135 MPa (19.6 ksi) vs 48 MPa (6.96 ksi). In exchange, POM ESD is the more ductile: elongation 6% versus 2.5% for POM GF30. POM ESD is lighter (1.45 g/cm³ vs 1.63 g/cm³ for POM GF30) and POM GF30 is stiffer (9.5 GPa vs 3.2 GPa). On the shop floor, POM ESD machines more easily (very good vs good) and POM GF30 welds better (good vs fair).
POM ESDChoose it when the part is bent, formed or impact-loaded, or when weight is the constraint.
POM GF30Choose it when strength drives the design, or when it will be welded.
POM ESD vs POM GF30: 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
Flexural Modulus
Shear Strength
Fracture Toughness (K_IC)
Izod Impact, Notched
Hardness, Shore D
Hardness, Rockwell M
Hardness, Rockwell R
Same in both: Shear Modulus 1.1 GPa0.15 Msi · Bulk Modulus 3 GPa0.45 Msi · Poisson's Ratio 0.35 · Compressive Modulus 2.7 GPa0.39 Msi
Physical
Density and transition temperatures.
Density
Same in both: Melting Temperature (Tm) 166°C331 °F · Glass Transition (Tg) -60°C-76 °F · Water Absorption (24 h) 0.22% · Water Absorption (Saturation) 0.8%
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Heat Deflection Temp. @ 0.45 MPa
Heat Deflection Temp. @ 1.8 MPa
Vicat Softening Point (B50)
Limiting Oxygen Index
Same in both: Specific Heat Capacity 1,470 J/kg·K0.35 BTU/lb·°F · Min Service Temperature -40°C-40 °F · Max Service Temperature (short-term) 140°C284 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Volume Resistivity
Surface Resistivity
Same in both: Dielectric Strength 20 kV/mm508 V/mil · Dielectric Constant (1 MHz) 3.7 · Dissipation Factor (1 MHz) 0.005 · Comparative Tracking Index (CTI) 600 V
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
UV / Weathering Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Formability (cold)
Mold Shrinkage
Melt Flow Rate
Same in both: Polishability 70 / 100 · Processing Melt Temperature (typ.) 200°C392 °F · Mold Temperature (typ.) 85°C185 °F
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 100 MJ/kg42,992 BTU/lb · Embodied Carbon (primary production) 4.5 kg CO₂/kg · Embodied Water 200 L/kg24 gal/lb · Typical Recycled Content 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.
POM ESD vs POM GF30 — frequently asked
Is POM GF30 stronger than POM ESD?
Yes. POM GF30 has a typical yield strength of 62 MPa (8.99 ksi) against 47 MPa (6.82 ksi) for POM ESD — about 32% more. Tensile strength is 135 MPa (19.6 ksi) vs 48 MPa (6.96 ksi).
Which grade does FabDigit quote by default, ESD or GF30?
Specify the condition in the material field or the drawing note; FabDigit prices the quote for the state you call out.
Which is easier to machine, POM ESD or POM GF30?
POM ESD. Its machinability rates very good (80/100) against good (55/100) for POM GF30; for welding the order is POM GF30 first (good, 55/100) then POM ESD (fair, 35/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in POM ESD and POM GF30 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.