FabDigit

PSU-GF20 vs PESU vs PAS vs PSU-GF30

Benchmark · 4 materials

Side-by-side benchmark of 4 polymer grades.

PSU-GF20 vs PESU and 2 more: properties

PSU-GF20PESUPASPSU-GF30

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

6.2 GPa0.9 Msi
2.6 GPa0.38 Msi
2.5 GPa0.36 Msi
8.8 GPa1.3 Msi

Shear Modulus

2.3 GPa0.33 Msi
0.95 GPa0.14 Msi
0.9 GPa0.13 Msi
3.2 GPa0.46 Msi

Poisson's Ratio

0.39
0.39
0.4
0.38

Tensile Strength (Ultimate)

100 MPa14.5 ksi
85 MPa12.3 ksi
78 MPa11.3 ksi
108 MPa15.7 ksi

Elongation at Break

3%
45%
50%
2.5%

Compressive Strength

120 MPa17.4 ksi
100 MPa14.5 ksi
100 MPa14.5 ksi
130 MPa18.9 ksi

Compressive Modulus

5.5 GPa0.8 Msi
2.6 GPa0.38 Msi
2.5 GPa0.36 Msi
7.5 GPa1.1 Msi

Flexural Strength

150 MPa21.8 ksi
129 MPa18.7 ksi
108 MPa15.7 ksi
160 MPa23.2 ksi

Flexural Modulus

5.9 GPa0.86 Msi
2.7 GPa0.38 Msi
2.6 GPa0.38 Msi
8.3 GPa1.2 Msi

Shear Strength

60 MPa8.7 ksi
66 MPa9.6 ksi
62 MPa9 ksi
65 MPa9.4 ksi

Izod Impact, Notched

60 J/m1.1 ft·lbf/in
80 J/m1.5 ft·lbf/in
85 J/m1.6 ft·lbf/in
85 J/m1.6 ft·lbf/in

Hardness, Rockwell M

90 HRM
88 HRM
88 HRM
92 HRM

Hardness, Rockwell R

122 HRR
120 HRR
120 HRR
122 HRR

Bulk Modulus

4 GPa0.58 Msi

Yield Strength (0.2% offset)

84 MPa12.2 ksi
75 MPa10.9 ksi

Fracture Toughness (K_IC)

3 MPa·√m2.7 ksi·√in
2.6 MPa·√m2.4 ksi·√in
3 MPa·√m2.7 ksi·√in

Hardness, Shore D

87 Shore D
85 Shore D

Hardness, Shore A

96 Shore A

Physical

Density and transition temperatures.

Density

1.38 g/cm³0.05 lb/in³
1.37 g/cm³0.05 lb/in³
1.29 g/cm³0.05 lb/in³
1.49 g/cm³0.05 lb/in³

Glass Transition (Tg)

187°C369 °F
225°C437 °F
210°C410 °F
185°C365 °F

Water Absorption (24 h)

0.22%
0.45%
0.4%
0.22%

Water Absorption (Saturation)

0.6%
2.1%
1.2%
0.6%

Refractive Index

1.65
1.64

Light Transmission

75%
75%

Thermal

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

Thermal Conductivity

0.28 W/m·K0.16 BTU/hr·ft·°F
0.18 W/m·K0.1 BTU/hr·ft·°F
0.22 W/m·K0.13 BTU/hr·ft·°F
0.3 W/m·K0.17 BTU/hr·ft·°F

Specific Heat Capacity

1,150 J/kg·K0.27 BTU/lb·°F
1,100 J/kg·K0.26 BTU/lb·°F
1,150 J/kg·K0.27 BTU/lb·°F
1,100 J/kg·K0.26 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

25 µm/m·K13.9 µin/in·°F
55 µm/m·K30.6 µin/in·°F
55 µm/m·K30.6 µin/in·°F
22 µm/m·K12.2 µin/in·°F

Max Service Temperature (continuous)

160°C320 °F
180°C356 °F
170°C338 °F
165°C329 °F

Heat Deflection Temp. @ 0.45 MPa

186°C367 °F
216°C421 °F
195°C383 °F
185°C365 °F

Heat Deflection Temp. @ 1.8 MPa

181°C358 °F
204°C399 °F
190°C374 °F
180°C356 °F

Vicat Softening Point (B50)

190°C374 °F
223°C433 °F
210°C410 °F
188°C370 °F

Limiting Oxygen Index

32%
38%
34%
32%

Max Service Temperature (short-term)

190°C374 °F
220°C428 °F
210°C410 °F
190°C374 °F

Same in both: Min Service Temperature -100°C-148 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1×10¹⁴ Ω·m3.94×10²¹ µΩ·in
1×10¹⁵ Ω·m3.94×10²² µΩ·in
1×10¹⁴ Ω·m3.94×10²¹ µΩ·in
1×10¹³ Ω·m3.94×10²⁰ µΩ·in

Dielectric Strength

17 kV/mm432 V/mil
17 kV/mm432 V/mil
17 kV/mm432 V/mil
19 kV/mm483 V/mil

Dielectric Constant (1 MHz)

3.6
3.5
3.4
3.7

Dissipation Factor (1 MHz)

0.006
0.005
0.008
0.006

Volume Resistivity

1×10¹⁶ Ω·cm
1×10¹⁷ Ω·cm
1×10¹⁶ Ω·cm
1×10¹⁵ Ω·cm

Same in both: Surface Resistivity 1×10¹⁵ Ω · Comparative Tracking Index (CTI) 150 V

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

86 / 100
85 / 100
85 / 100
85 / 100

UV / Weathering Resistance

30 / 100
25 / 100
30 / 100
30 / 100

Manufacturability

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

Machinability

55 / 100
65 / 100
62 / 100
50 / 100

Weldability

40 / 100
70 / 100
72 / 100
40 / 100

Formability (cold)

15 / 100
55 / 100
60 / 100
15 / 100

Polishability

35 / 100
75 / 100
70 / 100
30 / 100

Mold Shrinkage

0.3%
0.6%
0.6%
0.3%

Melt Flow Rate

4 g/10 min
18 g/10 min
20 g/10 min
6 g/10 min

Processing Melt Temperature (typ.)

355°C671 °F
355°C671 °F
360°C680 °F
355°C671 °F

Mold Temperature (typ.)

150°C302 °F
160°C320 °F
150°C302 °F
145°C293 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

135 MJ/kg58,040 BTU/lb
150 MJ/kg64,488 BTU/lb
145 MJ/kg62,339 BTU/lb
130 MJ/kg55,890 BTU/lb

Embodied Carbon (primary production)

7.5 kg CO₂/kg
8 kg CO₂/kg
8 kg CO₂/kg
7.5 kg CO₂/kg

Embodied Water

300 L/kg35.9 gal/lb
400 L/kg47.9 gal/lb
300 L/kg35.9 gal/lb

Same in both: Typical Recycled Content 0%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

72 kN·m/kg
62 kN·m/kg
60 kN·m/kg
72 kN·m/kg

Specific Stiffness (E / density)

4.5 MN·m/kg
1.9 MN·m/kg
1.9 MN·m/kg
5.9 MN·m/kg

Thermal Diffusivity

0.2 mm²/s
0.1 mm²/s
0.1 mm²/s
0.2 mm²/s

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.

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

Manufacturing and finishing

CapabilityPSU-GF20PESUPASPSU-GF30
Default condition
Relative cost$$$$ High$$$$ High$$$$ High$$$$ High
Min. machined wall
Best machined surface

Ready to make it?

Upload a CAD file and FabDigit prices the part in PSU-GF20 and PESU 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.