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POM-C GF30 vs POM-C Low Friction

Polymer · POM-C grade comparison

POM-C GF30 and POM-C Low Friction are two grades of the same polymer grade, POM-C: GF30 (30% glass-fiber reinforced) versus Low Friction (oil/silicone/PE-wax internally lubricated). The chemistry is identical, so every difference below comes from the condition. POM-C GF30 is the stronger of the two: yield strength 63 MPa (9.14 ksi) against 53 MPa (7.69 ksi) for POM-C Low Friction, about 19% more; tensile strength follows at 130 MPa (18.9 ksi) vs 55 MPa (7.98 ksi). In exchange, POM-C Low Friction is the more ductile: elongation 25% versus 2.5% for POM-C GF30. POM-C Low Friction is lighter (1.4 g/cm³ vs 1.61 g/cm³ for POM-C GF30) and POM-C GF30 is stiffer (9 GPa vs 2.6 GPa). On the shop floor, POM-C Low Friction machines more easily (excellent vs fair) and POM-C GF30 welds better (fair vs poor).

POM-C GF30Choose it when strength drives the design, or when the part sees heat.

POM-C Low FrictionChoose it when the part is bent, formed or impact-loaded, or when weight is the constraint.

POM-C GF30 vs POM-C Low Friction: properties

POM-C GF30POM-C Low Friction

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

9 GPa1.3 Msi
2.6 GPa0.38 Msi

Tensile Strength (Ultimate)

130 MPa18.9 ksi
55 MPa8 ksi

Yield Strength (0.2% offset)

63 MPa9.1 ksi
53 MPa7.7 ksi

Elongation at Break

2.5%
25%

Compressive Strength

100 MPa14.5 ksi
85 MPa12.3 ksi

Flexural Strength

180 MPa26.1 ksi
76 MPa11 ksi

Flexural Modulus

8 GPa1.2 Msi
2.4 GPa0.35 Msi

Shear Strength

60 MPa8.7 ksi
50 MPa7.3 ksi

Fracture Toughness (K_IC)

4 MPa·√m3.6 ksi·√in
3.8 MPa·√m3.5 ksi·√in

Izod Impact, Notched

60 J/m1.1 ft·lbf/in
55 J/m1 ft·lbf/in

Hardness, Shore D

81 Shore D
79 Shore D

Hardness, Rockwell M

90 HRM
74 HRM

Hardness, Rockwell R

119 HRR
114 HRR

Same in both: Shear Modulus 1.1 GPa0.15 Msi · Bulk Modulus 3 GPa0.46 Msi · Poisson's Ratio 0.35 · Compressive Modulus 2.7 GPa0.39 Msi

Physical

Density and transition temperatures.

Density

1.61 g/cm³0.06 lb/in³
1.4 g/cm³0.05 lb/in³

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% · Refractive Index 1.48

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

0.38 W/m·K0.22 BTU/hr·ft·°F
0.32 W/m·K0.18 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

35 µm/m·K19.4 µin/in·°F
110 µm/m·K61.1 µin/in·°F

Max Service Temperature (continuous)

110°C230 °F
100°C212 °F

Heat Deflection Temp. @ 0.45 MPa

158°C316 °F
153°C307 °F

Heat Deflection Temp. @ 1.8 MPa

160°C320 °F
100°C212 °F

Vicat Softening Point (B50)

158°C316 °F
155°C311 °F

Limiting Oxygen Index

16%
15%

Same in both: Specific Heat Capacity 1,470 J/kg·K0.35 BTU/lb·°F · Min Service Temperature -50°C-58 °F · 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).

Corrosion Resistance

72 / 100
60 / 100

Same in both: UV / Weathering Resistance 30 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

50 / 100
88 / 100

Weldability

35 / 100
15 / 100

Formability (cold)

35 / 100
30 / 100

Mold Shrinkage

0.7%
2%

Melt Flow Rate

9 g/10 min
11 g/10 min

Same in both: Polishability 55 / 100 · Processing Melt Temperature (typ.) 200°C392 °F · Mold Temperature (typ.) 90°C194 °F

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 100 MJ/kg42,992 BTU/lb · Embodied Carbon (primary production) 3.9 kg CO₂/kg · Embodied Water 250 L/kg30 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.

0.1110100123Density (g/cm³)Yield strength (MPa) — log scalePOM-C

POM-C GF30 vs POM-C Low Friction — frequently asked

Is POM-C GF30 stronger than POM-C Low Friction?

Yes. POM-C GF30 has a typical yield strength of 63 MPa (9.14 ksi) against 53 MPa (7.69 ksi) for POM-C Low Friction — about 19% more. Tensile strength is 130 MPa (18.9 ksi) vs 55 MPa (7.98 ksi).

Which grade does FabDigit quote by default, GF30 or Low Friction?

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-C GF30 or POM-C Low Friction?

POM-C Low Friction. Its machinability rates excellent (88/100) against fair (50/100) for POM-C GF30; for welding the order is POM-C GF30 first (fair, 35/100) then POM-C Low Friction (poor, 15/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in POM-C GF30 and POM-C Low Friction 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.