PSU CF30 vs PSU GF30
Polymer · grade comparison
PSU CF30 and PSU-GF30 are both polymer grades, compared here in the CF30 condition. PSU CF30 is the stronger of the two: tensile strength 155 MPa (22.5 ksi) against 108 MPa (15.7 ksi) for PSU-GF30, about 44% more. In exchange, PSU-GF30 is the more ductile: elongation 2.5% versus 1.7% for PSU CF30. PSU CF30 is lighter (1.43 g/cm³ vs 1.49 g/cm³ for PSU-GF30) and PSU CF30 is stiffer (18 GPa vs 8.8 GPa). On the shop floor, PSU-GF30 welds better (fair vs poor).
PSU CF30Choose it when strength drives the design, or when weight is the constraint.
PSU-GF30Choose it when the part is bent, formed or impact-loaded, or when it will be welded.
PSU CF30 vs PSU-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
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Compressive Strength
Compressive Modulus
Flexural Strength
Flexural Modulus
Shear Strength
Izod Impact, Notched
Hardness, Shore D
Hardness, Rockwell M
Hardness, Rockwell R
Fracture Toughness (K_IC)
Same in both: Poisson's Ratio 0.38
Physical
Density and transition temperatures.
Density
Water Absorption (Saturation)
Refractive Index
Light Transmission
Same in both: Glass Transition (Tg) 185°C365 °F · Water Absorption (24 h) 0.22%
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Thermal Expansion (CTE, 20–100 °C)
Heat Deflection Temp. @ 0.45 MPa
Heat Deflection Temp. @ 1.8 MPa
Same in both: Specific Heat Capacity 1,100 J/kg·K0.26 BTU/lb·°F · Max Service Temperature (continuous) 165°C329 °F · Min Service Temperature -100°C-148 °F · Vicat Softening Point (B50) 188°C370 °F · Limiting Oxygen Index 32% · Max Service Temperature (short-term) 190°C374 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Dielectric Strength
Dielectric Constant (1 MHz)
Dissipation Factor (1 MHz)
Volume Resistivity
Surface Resistivity
Same in both: 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
Same in both: Processing Melt Temperature (typ.) 355°C671 °F · Mold Temperature (typ.) 145°C293 °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 | PSU CF30 | PSU-GF30 |
|---|---|---|
| CNC machining | Yes | — |
| Sheet metal | Yes | — |
| Injection molding | Yes | — |
| Default condition | Medical Grade | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | 0.5 mm | — |
| Best machined surface | Ra 0.8 µm | — |
| Chrome Plating (Plastic) | Yes | — |
| EMI Shielding Coating | Yes | — |
| Painting | Yes | — |
| Soft Touch Coating | Yes | — |
| Spray Painting | Yes | — |
| UV Coating | Yes | — |
PSU CF30 vs PSU-GF30 — frequently asked
Is PSU CF30 stronger than PSU-GF30?
Yes. PSU CF30 has a typical tensile strength of 155 MPa (22.5 ksi) against 108 MPa (15.7 ksi) for PSU-GF30 — about 44% more.
Which is cheaper, PSU CF30 or PSU-GF30?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, PSU CF30 or PSU-GF30?
PSU CF30. Its machinability rates good (55/100) against fair (50/100) for PSU-GF30; for welding the order is PSU-GF30 first (fair, 40/100) then PSU CF30 (poor, 25/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in PSU CF30 and PSU-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.