PC/ASA vs PC-HT
Polymer · grade comparison
PC/ASA and PC-HT are both polymer grades. PC-HT is the stronger of the two: yield strength 68 MPa (9.86 ksi) against 54 MPa (7.83 ksi) for PC/ASA, about 26% more; tensile strength follows at 70 MPa (10.2 ksi) vs 55 MPa (7.98 ksi). PC-HT is the more ductile: elongation 90% versus 80% for PC/ASA. PC/ASA is lighter (1.15 g/cm³ vs 1.2 g/cm³ for PC-HT) and PC-HT runs hotter in service (140°C vs 95°C continuous). On the shop floor, PC-HT welds better (very good vs good) and PC/ASA sits in a lower cost tier (premium, $$$) than PC-HT (high, $$$$).
PC/ASAChoose it when weight is the constraint, or when cost is the deciding factor.
PC-HTChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
PC/ASA vs PC-HT: 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
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Compressive Strength
Flexural Strength
Flexural Modulus
Shear Strength
Izod Impact, Notched
Hardness, Shore D
Hardness, Rockwell M
Hardness, Rockwell R
Shear Modulus
Bulk Modulus
Compressive Modulus
Same in both: Poisson's Ratio 0.38 · Fracture Toughness (K_IC) 3 MPa·√m2.7 ksi·√in
Physical
Density and transition temperatures.
Density
Glass Transition (Tg)
Water Absorption (Saturation)
Refractive Index
Light Transmission
Same in both: Water Absorption (24 h) 0.2%
Thermal
How each material carries heat and how hot it can run.
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
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: Thermal Conductivity 0.2 W/m·K0.12 BTU/hr·ft·°F · Min Service Temperature -40°C-40 °F
Electrical
Conductivity and insulation.
Dielectric Constant (1 MHz)
Dissipation Factor (1 MHz)
Same in both: Electrical Resistivity 1×10¹⁴ Ω·m3.94×10²¹ µΩ·in · Dielectric Strength 28 kV/mm711 V/mil · Volume Resistivity 1×10¹⁶ Ω·cm · Surface Resistivity 1×10¹⁶ Ω · Comparative Tracking Index (CTI) 250 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)
Modulus of Resilience
Same in both: Specific Stiffness (E / density) 2 MN·m/kg · Thermal Diffusivity 0.1 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 | PC/ASA | PC-HT |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$ Premium | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
PC/ASA vs PC-HT — frequently asked
Is PC-HT stronger than PC/ASA?
Yes. PC-HT has a typical yield strength of 68 MPa (9.86 ksi) against 54 MPa (7.83 ksi) for PC/ASA — about 26% more. Tensile strength is 70 MPa (10.2 ksi) vs 55 MPa (7.98 ksi).
Which is cheaper, PC/ASA or PC-HT?
PC/ASA is the lower-cost material: it sits in the premium tier ($$$) while PC-HT is high ($$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
Which is easier to machine, PC/ASA or PC-HT?
PC-HT, by a small margin. Both rate good for machinability — 65/100 against 60/100 for PC/ASA; for welding the order is PC-HT first (very good, 70/100) then PC/ASA (good, 55/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in PC/ASA and PC-HT 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.