POM GF10 vs POM GF30
Polymer · POM grade comparison
POM GF10 and POM GF30 are two grades of the same polymer grade, POM: GF10 (10% glass fiber reinforced) 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: tensile strength 135 MPa (19.6 ksi) against 85 MPa (12.3 ksi) for POM GF10, about 59% more. In exchange, POM GF10 is the more ductile: elongation 7% versus 2.5% for POM GF30. POM GF10 is lighter (1.49 g/cm³ vs 1.63 g/cm³ for POM GF30) and POM GF30 is stiffer (9.5 GPa vs 4.5 GPa). On the shop floor, POM GF10 machines more easily (very good vs good).
POM GF10Choose it when the part is bent, formed or impact-loaded, or when weight is the constraint.
POM GF30Choose it when strength drives the design.
POM GF10 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)
Elongation at Break
Flexural Strength
Flexural Modulus
Izod Impact, Notched
Same in both: Shear Modulus 1.1 GPa0.15 Msi · Bulk Modulus 3 GPa0.45 Msi · Poisson's Ratio 0.35 · Yield Strength (0.2% offset) 62 MPa9 ksi · Compressive Strength 105 MPa15.2 ksi · Compressive Modulus 2.7 GPa0.39 Msi · Shear Strength 55 MPa8 ksi · Fracture Toughness (K_IC) 4 MPa·√m3.6 ksi·√in · Hardness, Shore D 81 Shore D · Hardness, Rockwell M 80 HRM · Hardness, Rockwell R 120 HRR
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 Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Heat Deflection Temp. @ 0.45 MPa
Heat Deflection Temp. @ 1.8 MPa
Same in both: Thermal Conductivity 0.31 W/m·K0.18 BTU/hr·ft·°F · Specific Heat Capacity 1,470 J/kg·K0.35 BTU/lb·°F · Min Service Temperature -40°C-40 °F · Vicat Softening Point (B50) 160°C320 °F · Limiting Oxygen Index 15% · Max Service Temperature (short-term) 140°C284 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Resistivity 1×10¹² Ω·m3.94×10¹⁹ µΩ·in · Dielectric Strength 20 kV/mm508 V/mil · Dielectric Constant (1 MHz) 3.7 · Dissipation Factor (1 MHz) 0.005 · Volume Resistivity 1×10¹⁴ Ω·cm · Surface Resistivity 1×10¹⁴ Ω · Comparative Tracking Index (CTI) 600 V
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Corrosion Resistance 70 / 100 · UV / Weathering Resistance 30 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Mold Shrinkage
Same in both: Weldability 55 / 100 · Formability (cold) 40 / 100 · Polishability 70 / 100 · Melt Flow Rate 9 g/10 min · 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 GF10 vs POM GF30 — frequently asked
Is POM GF30 stronger than POM GF10?
Yes. POM GF30 has a typical tensile strength of 135 MPa (19.6 ksi) against 85 MPa (12.3 ksi) for POM GF10 — about 59% more.
Which grade does FabDigit quote by default, GF10 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 GF10 or POM GF30?
POM GF10. Its machinability rates very good (72/100) against good (55/100) for POM GF30.
Ready to make it?
Upload a CAD file and FabDigit prices the part in POM GF10 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.