Aurum PD450 vs TP-PI
Polymer · grade comparison
Aurum PD450 and TP-PI are both polymer grades. Both yield at about 90 MPa — strength does not separate them. On the shop floor, Aurum PD450 welds better (fair vs poor).
Aurum PD450Choose it when it will be welded.
Aurum PD450 vs TP-PI: 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.
Poisson's Ratio
Hardness, Rockwell M
Shear Modulus
Bulk Modulus
Compressive Modulus
Shear Strength
Fracture Toughness (K_IC)
Hardness, Shore D
Hardness, Rockwell R
Same in both: Elastic (Young's) Modulus 2.9 GPa0.42 Msi · Tensile Strength (Ultimate) 92 MPa13.3 ksi · Yield Strength (0.2% offset) 90 MPa13.1 ksi · Elongation at Break 40% · Compressive Strength 130 MPa18.9 ksi · Flexural Strength 130 MPa18.9 ksi · Flexural Modulus 3 GPa0.44 Msi · Izod Impact, Notched 55 J/m1 ft·lbf/in
Physical
Density and transition temperatures.
Water Absorption (Saturation)
Refractive Index
Same in both: Density 1.33 g/cm³0.05 lb/in³ · Melting Temperature (Tm) 388°C730 °F · Glass Transition (Tg) 250°C482 °F · Water Absorption (24 h) 0.24%
Thermal
How each material carries heat and how hot it can run.
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Min Service Temperature
Heat Deflection Temp. @ 0.45 MPa
Vicat Softening Point (B50)
Same in both: Thermal Conductivity 0.29 W/m·K0.17 BTU/hr·ft·°F · Max Service Temperature (continuous) 240°C464 °F · Heat Deflection Temp. @ 1.8 MPa 238°C460 °F · Limiting Oxygen Index 47% · Max Service Temperature (short-term) 300°C572 °F
Electrical
Conductivity and insulation.
Dielectric Constant (1 MHz)
Same in both: Electrical Resistivity 1×10¹⁴ Ω·m3.94×10²¹ µΩ·in · Dielectric Strength 22 kV/mm559 V/mil · Dissipation Factor (1 MHz) 0.002 · Volume Resistivity 1×10¹⁶ Ω·cm · Surface Resistivity 1×10¹⁶ Ω · Comparative Tracking Index (CTI) 175 V
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
UV / Weathering Resistance
Same in both: Corrosion Resistance 88 / 100
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.) 410°C770 °F · Mold Temperature (typ.) 200°C392 °F
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.
Same in both: Specific Strength (UTS / density) 69 kN·m/kg · Specific Stiffness (E / density) 2.2 MN·m/kg · Modulus of Resilience 1,397 kJ/m³ · 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 | Aurum PD450 | TP-PI |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Aurum PD450 vs TP-PI — frequently asked
What is the difference between Aurum PD450 and TP-PI?
Aurum PD450 and TP-PI are both polymer grades. Both yield at about 90 MPa — strength does not separate them. On the shop floor, Aurum PD450 welds better (fair vs poor).
Which is cheaper, Aurum PD450 or TP-PI?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, Aurum PD450 or TP-PI?
Aurum PD450, by a small margin. Both rate good for machinability — 65/100 against 60/100 for TP-PI; for welding the order is Aurum PD450 first (fair, 45/100) then TP-PI (poor, 25/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in Aurum PD450 and TP-PI 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.