FabDigit

XPS vs ABS and 2 more: properties

XPSABSPC-ABSASA

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

0.01 GPa0 Msi
2.3 GPa0.33 Msi
2.4 GPa0.35 Msi
2.2 GPa0.32 Msi

Poisson's Ratio

0.3
0.35
0.39
0.37

Tensile Strength (Ultimate)

0.45 MPa0.07 ksi
43 MPa6.2 ksi
56 MPa8.1 ksi
47 MPa6.8 ksi

Yield Strength (0.2% offset)

0.4 MPa0.06 ksi
42 MPa6.1 ksi
55 MPa8 ksi
45 MPa6.5 ksi

Elongation at Break

3%
25%
90%
25%

Compressive Strength

0.25 MPa0.04 ksi
65 MPa9.4 ksi
65 MPa9.4 ksi
62 MPa9 ksi

Compressive Modulus

0.01 GPa0 Msi
2.2 GPa0.32 Msi
2.3 GPa0.33 Msi

Flexural Strength

0.5 MPa0.07 ksi
70 MPa10.2 ksi
85 MPa12.3 ksi
72 MPa10.4 ksi

Flexural Modulus

0.01 GPa0 Msi
2.3 GPa0.33 Msi
2.3 GPa0.33 Msi
2.2 GPa0.32 Msi

Shear Strength

0.2 MPa0.03 ksi
34 MPa4.9 ksi
40 MPa5.8 ksi
35 MPa5.1 ksi

Shear Modulus

0.85 GPa0.12 Msi
0.87 GPa0.13 Msi
0.8 GPa0.12 Msi

Bulk Modulus

4 GPa0.51 Msi
4 GPa0.52 Msi
4 GPa0.51 Msi

Fracture Toughness (K_IC)

3 MPa·√m2.7 ksi·√in
3.5 MPa·√m3.2 ksi·√in

Izod Impact, Notched

200 J/m3.7 ft·lbf/in
500 J/m9.4 ft·lbf/in
130 J/m2.4 ft·lbf/in

Hardness, Shore D

78 Shore D
79 Shore D
78 Shore D

Hardness, Rockwell R

105 HRR
115 HRR
105 HRR

Hardness, Rockwell M

68 HRM
70 HRM

Physical

Density and transition temperatures.

Density

0.03 g/cm³0 lb/in³
1.04 g/cm³0.04 lb/in³
1.15 g/cm³0.04 lb/in³
1.07 g/cm³0.04 lb/in³

Glass Transition (Tg)

100°C212 °F
105°C221 °F
125°C257 °F
105°C221 °F

Water Absorption (24 h)

0.2%
0.3%
0.2%
0.3%

Water Absorption (Saturation)

0.7%
1%
0.6%
1%

Refractive Index

1.57

Thermal

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

Thermal Conductivity

0.03 W/m·K0.02 BTU/hr·ft·°F
0.17 W/m·K0.1 BTU/hr·ft·°F
0.2 W/m·K0.12 BTU/hr·ft·°F
0.17 W/m·K0.1 BTU/hr·ft·°F

Specific Heat Capacity

1,450 J/kg·K0.35 BTU/lb·°F
1,450 J/kg·K0.35 BTU/lb·°F
1,400 J/kg·K0.33 BTU/lb·°F
1,450 J/kg·K0.35 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

70 µm/m·K38.9 µin/in·°F
90 µm/m·K50 µin/in·°F
75 µm/m·K41.7 µin/in·°F
85 µm/m·K47.2 µin/in·°F

Max Service Temperature (continuous)

75°C167 °F
75°C167 °F
100°C212 °F
80°C176 °F

Min Service Temperature

-50°C-58 °F
-20°C-4 °F
-40°C-40 °F
-30°C-22 °F

Vicat Softening Point (B50)

95°C203 °F
100°C212 °F
135°C275 °F
100°C212 °F

Limiting Oxygen Index

26%
19%
23%
19%

Max Service Temperature (short-term)

85°C185 °F
95°C203 °F
125°C257 °F
95°C203 °F

Heat Deflection Temp. @ 0.45 MPa

95°C203 °F
120°C248 °F
98°C208 °F

Heat Deflection Temp. @ 1.8 MPa

85°C185 °F
105°C221 °F
88°C190 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

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

Dielectric Constant (1 MHz)

1.07
2.9
3
3

Volume Resistivity

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

Dielectric Strength

16 kV/mm406 V/mil
25 kV/mm635 V/mil
25 kV/mm635 V/mil

Dissipation Factor (1 MHz)

0.009
0.008
0.015

Surface Resistivity

1×10¹⁵ Ω
1×10¹⁵ Ω
1×10¹⁵ Ω

Comparative Tracking Index (CTI)

600 V
250 V
600 V

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

75 / 100
68 / 100
78 / 100
70 / 100

UV / Weathering Resistance

15 / 100
22 / 100
30 / 100
88 / 100

Manufacturability

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

Machinability

90 / 100
80 / 100
65 / 100
75 / 100

Weldability

20 / 100
78 / 100
72 / 100
70 / 100

Formability (cold)

25 / 100
82 / 100
60 / 100
75 / 100

Processing Melt Temperature (typ.)

200°C392 °F
235°C455 °F
265°C509 °F
245°C473 °F

Polishability

60 / 100
65 / 100
70 / 100

Mold Shrinkage

0.55%
0.6%
0.5%

Melt Flow Rate

20 g/10 min
14 g/10 min
12 g/10 min

Mold Temperature (typ.)

60°C140 °F
75°C167 °F
65°C149 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

100 MJ/kg42,992 BTU/lb
95 MJ/kg40,843 BTU/lb
100 MJ/kg42,992 BTU/lb
96 MJ/kg41,273 BTU/lb

Embodied Carbon (primary production)

4.5 kg CO₂/kg
3.8 kg CO₂/kg
4.6 kg CO₂/kg
3.9 kg CO₂/kg

Typical Recycled Content

10%
5%
15%
5%

Embodied Water

200 L/kg24 gal/lb
200 L/kg24 gal/lb
200 L/kg24 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

14 kN·m/kg
41 kN·m/kg
49 kN·m/kg
44 kN·m/kg

Specific Stiffness (E / density)

0.4 MN·m/kg
2.2 MN·m/kg
2.1 MN·m/kg
2.1 MN·m/kg

Modulus of Resilience

7 kJ/m³
383 kJ/m³
630 kJ/m³
460 kJ/m³

Thermal Diffusivity

0.6 mm²/s
0.1 mm²/s
0.1 mm²/s
0.1 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 scaleABSPC-ABSASAXPS

Manufacturing and finishing

CapabilityXPSABSPC-ABSASA
CNC machiningYesYesYes
Sheet metalYesYesYes
Injection moldingYesYesYes
3D printingYesYes
Default conditionUnfilledUnfilledUnfilled
Relative cost$$ Standard$ Budget$$ Standard$$ Standard
Min. machined wall0.5 mm0.5 mm0.5 mm
Best machined surfaceRa 0.8 µmRa 0.8 µmRa 0.8 µm
Chrome Plating (Plastic)YesYesYes
Conductive CoatingYesYes
Dyeing (Nylon)YesYes
EMI Shielding CoatingYesYesYes
PaintingYesYesYes
Primer CoatingYesYes
Soft Touch CoatingYesYesYes
Spray PaintingYesYesYes
Tinted CoatingYesYes
UV CoatingYesYesYes
Vacuum MetallizationYesYes
Waterproof CoatingYesYes

Ready to make it?

Upload a CAD file and FabDigit prices the part in XPS and ABS 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.