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PC/ASA vs PC-GF

Polymer · grade comparison

PC/ASA and PC-GF are both polymer grades. PC-GF is the stronger of the two: tensile strength 130 MPa (18.9 ksi) against 55 MPa (7.98 ksi) for PC/ASA, about 136% more. In exchange, PC/ASA is the more ductile: elongation 80% versus 2.5% for PC-GF. PC/ASA is lighter (1.15 g/cm³ vs 1.43 g/cm³ for PC-GF) and PC-GF is stiffer (8.5 GPa vs 2.3 GPa). On the shop floor, PC-GF sits in a lower cost tier (standard, $$) than PC/ASA (premium, $$$).

PC/ASAChoose it when the part is bent, formed or impact-loaded, or when weight is the constraint.

PC-GFChoose it when strength drives the design, or when the part sees heat.

PC/ASA vs PC-GF: properties

PC/ASAPC-GF

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

2.3 GPa0.33 Msi
8.5 GPa1.2 Msi

Poisson's Ratio

0.38
0.36

Tensile Strength (Ultimate)

55 MPa8 ksi
130 MPa18.9 ksi

Yield Strength (0.2% offset)

54 MPa7.8 ksi
—

Elongation at Break

80%
2.5%

Compressive Strength

75 MPa10.9 ksi
120 MPa17.4 ksi

Flexural Strength

85 MPa12.3 ksi
180 MPa26.1 ksi

Flexural Modulus

2.3 GPa0.33 Msi
8 GPa1.2 Msi

Shear Strength

40 MPa5.8 ksi
70 MPa10.2 ksi

Izod Impact, Notched

500 J/m9.4 ft·lbf/in
110 J/m2.1 ft·lbf/in

Hardness, Shore D

80 Shore D
—

Hardness, Rockwell M

72 HRM
93 HRM

Hardness, Rockwell R

112 HRR
119 HRR

Shear Modulus

—
3.1 GPa0.45 Msi

Bulk Modulus

—
10 GPa1.4 Msi

Compressive Modulus

—
7 GPa1 Msi

Same in both: Fracture Toughness (K_IC) 3 MPa·√m2.7 ksi·√in

Physical

Density and transition temperatures.

Density

1.15 g/cm³0.04 lb/in³
1.43 g/cm³0.05 lb/in³

Glass Transition (Tg)

120°C248 °F
147°C297 °F

Water Absorption (24 h)

0.2%
0.12%

Water Absorption (Saturation)

0.6%
0.3%

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

0.2 W/m·K0.12 BTU/hr·ft·°F
0.24 W/m·K0.14 BTU/hr·ft·°F

Specific Heat Capacity

1,300 J/kg·K0.31 BTU/lb·°F
1,150 J/kg·K0.27 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

80 µm/m·K44.4 µin/in·°F
22 µm/m·K12.2 µin/in·°F

Max Service Temperature (continuous)

95°C203 °F
130°C266 °F

Heat Deflection Temp. @ 0.45 MPa

115°C239 °F
152°C306 °F

Heat Deflection Temp. @ 1.8 MPa

100°C212 °F
146°C295 °F

Vicat Softening Point (B50)

128°C262 °F
152°C306 °F

Limiting Oxygen Index

24%
27%

Max Service Temperature (short-term)

120°C248 °F
160°C320 °F

Same in both: Min Service Temperature -40°C-40 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1×10¹⁴ Ω·m3.94×10²¹ µΩ·in
1×10¹³ Ω·m3.94×10²⁰ µΩ·in

Dielectric Constant (1 MHz)

3
3.4

Volume Resistivity

1×10¹⁶ Ω·cm
1×10¹⁵ Ω·cm

Surface Resistivity

1×10¹⁶ Ω
1×10¹⁵ Ω

Comparative Tracking Index (CTI)

250 V
175 V

Same in both: Dielectric Strength 28 kV/mm711 V/mil · Dissipation Factor (1 MHz) 0.009

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

UV / Weathering Resistance

88 / 100
30 / 100

Same in both: Corrosion Resistance 80 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Formability (cold)

55 / 100
10 / 100

Polishability

70 / 100
30 / 100

Mold Shrinkage

0.55%
0.35%

Melt Flow Rate

15 g/10 min
6 g/10 min

Processing Melt Temperature (typ.)

260°C500 °F
300°C572 °F

Mold Temperature (typ.)

70°C158 °F
100°C212 °F

Same in both: Machinability 60 / 100 · Weldability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

105 MJ/kg45,142 BTU/lb
85 MJ/kg36,543 BTU/lb

Embodied Carbon (primary production)

5.5 kg CO₂/kg
5 kg CO₂/kg

Typical Recycled Content

0%
5%

Same in both: Embodied Water 250 L/kg30 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

48 kN·m/kg
91 kN·m/kg

Specific Stiffness (E / density)

2 MN·m/kg
5.9 MN·m/kg

Same in both: 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.

0.1110100123Density (g/cm³)Yield strength (MPa) — log scalePC/ASA

Manufacturing and finishing

CapabilityPC/ASAPC-GF
Default condition——
Relative cost$$$ Premium$$ Standard
Min. machined wall——
Best machined surface——

PC/ASA vs PC-GF — frequently asked

Is PC-GF stronger than PC/ASA?

Yes. PC-GF has a typical tensile strength of 130 MPa (18.9 ksi) against 55 MPa (7.98 ksi) for PC/ASA — about 136% more.

Which is cheaper, PC/ASA or PC-GF?

PC-GF is the lower-cost material: it sits in the standard tier ($$) while PC/ASA is premium ($$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

When should I choose PC/ASA over PC-GF?

Pick PC/ASA when the part is bent, formed or impact-loaded, or when weight is the constraint. Pick PC-GF when strength drives the design, or when the part sees heat.

Ready to make it?

Upload a CAD file and FabDigit prices the part in PC/ASA and PC-GF 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.