PESU GF20 vs PESU GF30
Polymer · grade comparison
PESU GF20 and PESU-GF30 are both polymer grades, compared here in the GF20 condition. PESU-GF30 is the stronger of the two: tensile strength 150 MPa (21.8 ksi) against 125 MPa (18.1 ksi) for PESU GF20, about 20% more. In exchange, PESU GF20 is the more ductile: elongation 3% versus 2.5% for PESU-GF30. PESU GF20 is lighter (1.51 g/cm³ vs 1.6 g/cm³ for PESU-GF30) and PESU-GF30 is stiffer (9.5 GPa vs 7 GPa). On the shop floor, PESU GF20 welds better (very good vs fair).
PESU GF20Choose it when the part is bent, formed or impact-loaded, or when weight is the constraint.
PESU-GF30Choose it when strength drives the design.
PESU GF20 vs PESU-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
Shear Modulus
Bulk Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Compressive Strength
Compressive Modulus
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: Poisson's Ratio 0.39
Physical
Density and transition temperatures.
Density
Glass Transition (Tg)
Water Absorption (24 h)
Water Absorption (Saturation)
Refractive Index
Light Transmission
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
Heat Deflection Temp. @ 1.8 MPa
Vicat Softening Point (B50)
Limiting Oxygen Index
Max Service Temperature (short-term)
Same in both: Specific Heat Capacity 1,100 J/kg·K0.26 BTU/lb·°F
Electrical
Conductivity and insulation.
Electrical Resistivity
Dielectric Strength
Dielectric Constant (1 MHz)
Dissipation Factor (1 MHz)
Volume Resistivity
Same in both: Surface Resistivity 1×10¹⁵ Ω · Comparative Tracking Index (CTI) 150 V
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
UV / Weathering Resistance
Same in both: Corrosion Resistance 85 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Formability (cold)
Polishability
Melt Flow Rate
Processing Melt Temperature (typ.)
Same in both: Mold Shrinkage 0.3% · Mold Temperature (typ.) 160°C320 °F
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Same in both: 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.
Manufacturing and finishing
| Capability | PESU GF20 | PESU-GF30 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
PESU GF20 vs PESU-GF30 — frequently asked
Is PESU-GF30 stronger than PESU GF20?
Yes. PESU-GF30 has a typical tensile strength of 150 MPa (21.8 ksi) against 125 MPa (18.1 ksi) for PESU GF20 — about 20% more.
Which is cheaper, PESU GF20 or PESU-GF30?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which welds better, PESU GF20 or PESU-GF30?
PESU GF20. Its weldability rates very good (70/100) against fair (50/100) for PESU-GF30.
Ready to make it?
Upload a CAD file and FabDigit prices the part in PESU GF20 and PESU-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.