PESU-GF30 vs PPSU-GF30
Polymer · grade comparison
PESU-GF30 and PPSU-GF30 are both polymer grades. PESU-GF30 is the stronger of the two: tensile strength 150 MPa (21.8 ksi) against 125 MPa (18.1 ksi) for PPSU-GF30, about 20% more. PESU-GF30 is stiffer (9.5 GPa vs 9 GPa) and PESU-GF30 runs hotter in service (200°C vs 180°C continuous). On the shop floor, PPSU-GF30 machines more easily (good vs fair) and PESU-GF30 welds better (50 vs 40 out of 100).
PESU-GF30Choose it when strength drives the design, or when the part sees heat.
PPSU-GF30Choose it when the part is machined in volume.
PESU-GF30 vs PPSU-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)
Compressive Strength
Compressive Modulus
Flexural Strength
Flexural Modulus
Shear Strength
Izod Impact, Notched
Fracture Toughness (K_IC)
Hardness, Rockwell R
Same in both: Poisson's Ratio 0.39 · Elongation at Break 2.5% · Hardness, Shore D 90 Shore D · Hardness, Rockwell M 98 HRM
Physical
Density and transition temperatures.
Density
Glass Transition (Tg)
Water Absorption (24 h)
Water Absorption (Saturation)
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Max Service Temperature (continuous)
Heat Deflection Temp. @ 1.8 MPa
Vicat Softening Point (B50)
Max Service Temperature (short-term)
Same in both: Specific Heat Capacity 1,100 J/kg·K0.26 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 22 µm/m·K12.2 µin/in·°F · Min Service Temperature -50°C-58 °F · Heat Deflection Temp. @ 0.45 MPa 220°C428 °F · Limiting Oxygen Index 40%
Electrical
Conductivity and insulation.
Dielectric Strength
Dissipation Factor (1 MHz)
Same in both: Electrical Resistivity 1×10¹³ Ω·m3.94×10²⁰ µΩ·in · Dielectric Constant (1 MHz) 3.9 · Volume Resistivity 1×10¹⁵ Ω·cm · Surface Resistivity 1×10¹⁵ Ω · Comparative Tracking Index (CTI) 150 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)
Polishability
Mold Shrinkage
Melt Flow Rate
Processing Melt Temperature (typ.)
Mold Temperature (typ.)
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)
Specific Stiffness (E / density)
Same in both: Thermal Diffusivity 0.2 mm²/s · 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 | PESU-GF30 | PPSU-GF30 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
PESU-GF30 vs PPSU-GF30 — frequently asked
Is PESU-GF30 stronger than PPSU-GF30?
Yes. PESU-GF30 has a typical tensile strength of 150 MPa (21.8 ksi) against 125 MPa (18.1 ksi) for PPSU-GF30 — about 20% more.
Which is cheaper, PESU-GF30 or PPSU-GF30?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, PESU-GF30 or PPSU-GF30?
PPSU-GF30. Its machinability rates good (55/100) against fair (45/100) for PESU-GF30; for welding the order is PESU-GF30 first (fair, 50/100) then PPSU-GF30 (fair, 40/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in PESU-GF30 and PPSU-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.