PAS vs PESU-GF30
Polymer · grade comparison
PAS and PESU-GF30 are both polymer grades. PESU-GF30 is the stronger of the two: tensile strength 150 MPa (21.8 ksi) against 78 MPa (11.3 ksi) for PAS, about 92% more. In exchange, PAS is the more ductile: elongation 50% versus 2.5% for PESU-GF30, and PESU-GF30 is harder (90 Shore D vs 85 Shore D). PAS is lighter (1.29 g/cm³ vs 1.6 g/cm³ for PESU-GF30) and PESU-GF30 is stiffer (9.5 GPa vs 2.5 GPa). On the shop floor, PAS machines more easily (good vs fair) and PAS welds better (very good vs fair).
PASChoose it when the part is bent, formed or impact-loaded, or when weight is the constraint.
PESU-GF30Choose it when strength drives the design, or when the part sees heat.
PAS 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
Poisson's Ratio
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)
Hardness, Shore A
Hardness, Shore D
Hardness, Rockwell M
Hardness, Rockwell R
Bulk Modulus
Same in both: Izod Impact, Notched 85 J/m1.6 ft·lbf/in
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
Specific Heat Capacity
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)
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).
Same in both: Corrosion Resistance 85 / 100 · UV / Weathering Resistance 30 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Formability (cold)
Polishability
Mold Shrinkage
Mold Temperature (typ.)
Same in both: Melt Flow Rate 20 g/10 min · Processing Melt Temperature (typ.) 360°C680 °F
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Same in both: Embodied Water 300 L/kg35.9 gal/lb · Typical Recycled Content 0%
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Thermal Diffusivity
Same in both: 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 | PAS | PESU-GF30 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
PAS vs PESU-GF30 — frequently asked
Is PESU-GF30 stronger than PAS?
Yes. PESU-GF30 has a typical tensile strength of 150 MPa (21.8 ksi) against 78 MPa (11.3 ksi) for PAS — about 92% more.
Which is cheaper, PAS or PESU-GF30?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, PAS or PESU-GF30?
PAS. Its machinability rates good (62/100) against fair (45/100) for PESU-GF30; for welding the order is PAS first (very good, 72/100) then PESU-GF30 (fair, 50/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in PAS 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.