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PU-ABS-like vs PU-Nylon-like

Polyurethane · grade comparison

PU-ABS-like and PU-Nylon-like are both polyurethane grades. PU-ABS-like is the stronger of the two: yield strength 55 MPa (7.98 ksi) against 48 MPa (6.96 ksi) for PU-Nylon-like, about 15% more; tensile strength follows at 60 MPa (8.7 ksi) vs 55 MPa (7.98 ksi). In exchange, PU-Nylon-like is the more ductile: elongation 25% versus 12% for PU-ABS-like. PU-ABS-like is stiffer (2.2 GPa vs 1.9 GPa) and PU-Nylon-like runs hotter in service (80°C vs 70°C continuous).

PU-ABS-likeChoose it when strength drives the design.

PU-Nylon-likeChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.

PU-ABS-like vs PU-Nylon-like: properties

PU-ABS-likePU-Nylon-like

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

2.2 GPa0.32 Msi
1.9 GPa0.28 Msi

Tensile Strength (Ultimate)

60 MPa8.7 ksi
55 MPa8 ksi

Yield Strength (0.2% offset)

55 MPa8 ksi
48 MPa7 ksi

Elongation at Break

12%
25%

Compressive Strength

85 MPa12.3 ksi
80 MPa11.6 ksi

Compressive Modulus

2.1 GPa0.3 Msi
1.8 GPa0.26 Msi

Flexural Strength

85 MPa12.3 ksi
75 MPa10.9 ksi

Flexural Modulus

2.3 GPa0.33 Msi
2 GPa0.29 Msi

Izod Impact, Notched

55 J/m1 ft·lbf/in
60 J/m1.1 ft·lbf/in

Hardness, Rockwell R

105 HRR
108 HRR

Same in both: Poisson's Ratio 0.4 · Hardness, Shore D 82 Shore D

Physical

Density and transition temperatures.

Density

1.1 g/cm³0.04 lb/in³
1.13 g/cm³0.04 lb/in³

Water Absorption (24 h)

0.35%
0.4%

Water Absorption (Saturation)

1.3%
1.5%

Same in both: Glass Transition (Tg) 75°C167 °F

Thermal

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

Thermal Expansion (CTE, 20–100 °C)

90 µm/m·K50 µin/in·°F
110 µm/m·K61.1 µin/in·°F

Max Service Temperature (continuous)

70°C158 °F
80°C176 °F

Heat Deflection Temp. @ 0.45 MPa

75°C167 °F
88°C190 °F

Heat Deflection Temp. @ 1.8 MPa

62°C144 °F
70°C158 °F

Max Service Temperature (short-term)

95°C203 °F
110°C230 °F

Same in both: Thermal Conductivity 0.2 W/m·K0.12 BTU/hr·ft·°F · Specific Heat Capacity 1,600 J/kg·K0.38 BTU/lb·°F · Min Service Temperature -30°C-22 °F · Limiting Oxygen Index 20%

Electrical

Conductivity and insulation.

Dielectric Strength

18 kV/mm457 V/mil
20 kV/mm508 V/mil

Dielectric Constant (1 MHz)

3.8
3.6

Surface Resistivity

—
1×10¹⁴ Ω

Same in both: Electrical Resistivity 1×10¹² Ω·m3.94×10¹⁹ µΩ·in · Dissipation Factor (1 MHz) 0.03 · Volume Resistivity 1×10¹⁴ Ω·cm

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

75 / 100
72 / 100

Same in both: UV / Weathering Resistance 25 / 100

Manufacturability

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

Machinability

80 / 100
72 / 100

Polishability

70 / 100
65 / 100

Mold Shrinkage

0.25%
0.3%

Mold Temperature (typ.)

40°C104 °F
65°C149 °F

Weldability

—
5 / 100

Formability (cold)

—
5 / 100

Processing Melt Temperature (typ.)

—
50°C122 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

105 MJ/kg45,142 BTU/lb
100 MJ/kg42,992 BTU/lb

Same in both: Embodied Carbon (primary production) 5.5 kg CO₂/kg · Embodied Water 250 L/kg30 gal/lb · Typical Recycled Content 0%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

55 kN·m/kg
49 kN·m/kg

Specific Stiffness (E / density)

2 MN·m/kg
1.7 MN·m/kg

Modulus of Resilience

688 kJ/m³
606 kJ/m³

Same in both: Thermal Diffusivity 0.1 mm²/s · Thermal Shock Resistance Index 0

Strength versus weight

Yield strength against density for every polyurethane grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

71015203050701.11.21.31.4Density (g/cm³)Yield strength (MPa) — log scalePU-ABS-likePU-Nylon-like

Manufacturing and finishing

CapabilityPU-ABS-likePU-Nylon-like
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

PU-ABS-like vs PU-Nylon-like — frequently asked

Is PU-ABS-like stronger than PU-Nylon-like?

Yes. PU-ABS-like has a typical yield strength of 55 MPa (7.98 ksi) against 48 MPa (6.96 ksi) for PU-Nylon-like — about 15% more. Tensile strength is 60 MPa (8.7 ksi) vs 55 MPa (7.98 ksi).

Which is cheaper, PU-ABS-like or PU-Nylon-like?

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, PU-ABS-like or PU-Nylon-like?

PU-ABS-like, by a small margin. Both rate very good for machinability — 80/100 against 72/100 for PU-Nylon-like.

Ready to make it?

Upload a CAD file and FabDigit prices the part in PU-ABS-like and PU-Nylon-like 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.