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ABS-Like vs GF Nylon-Like

Polyurethane · grade comparison

ABS-Like and GF Nylon-Like are both polyurethane grades, both rigid pu. GF Nylon-Like is the stronger of the two: tensile strength 60 MPa (8.7 ksi) against 52 MPa (7.54 ksi) for ABS-Like, about 15% more. In exchange, ABS-Like is the more ductile: elongation 12% versus 5% for GF Nylon-Like. ABS-Like is lighter (1.12 g/cm³ vs 1.4 g/cm³ for GF Nylon-Like) and GF Nylon-Like is stiffer (4 GPa vs 2.2 GPa). On the shop floor, ABS-Like sits in a lower cost tier (budget, $) than GF Nylon-Like (standard, $$).

ABS-LikeChoose it when the part is bent, formed or impact-loaded, or when weight is the constraint.

GF Nylon-LikeChoose it when strength drives the design, or when the part sees heat.

ABS-Like vs GF Nylon-Like: properties

ABS-LikeGF Nylon-Like

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

2.2 GPa0.32 Msi
4 GPa0.58 Msi

Shear Modulus

0.8 GPa0.12 Msi
—

Bulk Modulus

3 GPa0.48 Msi
—

Poisson's Ratio

0.39
0.38

Tensile Strength (Ultimate)

52 MPa7.5 ksi
60 MPa8.7 ksi

Yield Strength (0.2% offset)

45 MPa6.5 ksi
—

Elongation at Break

12%
5%

Compressive Strength

78 MPa11.3 ksi
100 MPa14.5 ksi

Compressive Modulus

2.1 GPa0.3 Msi
—

Flexural Strength

76 MPa11 ksi
92 MPa13.3 ksi

Flexural Modulus

2.2 GPa0.32 Msi
4.2 GPa0.61 Msi

Shear Strength

38 MPa5.5 ksi
—

Fracture Toughness (K_IC)

1.3 MPa·√m1.2 ksi·√in
—

Izod Impact, Notched

35 J/m0.66 ft·lbf/in
40 J/m0.75 ft·lbf/in

Hardness, Shore D

82 Shore D
85 Shore D

Hardness, Rockwell M

78 HRM
—

Hardness, Rockwell R

—
112 HRR

Physical

Density and transition temperatures.

Density

1.12 g/cm³0.04 lb/in³
1.4 g/cm³0.05 lb/in³

Glass Transition (Tg)

62°C144 °F
95°C203 °F

Water Absorption (24 h)

0.6%
0.3%

Water Absorption (Saturation)

1.6%
1.2%

Refractive Index

1.51
—

Thermal

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

Thermal Conductivity

0.2 W/m·K0.12 BTU/hr·ft·°F
0.3 W/m·K0.17 BTU/hr·ft·°F

Specific Heat Capacity

1,500 J/kg·K0.36 BTU/lb·°F
1,400 J/kg·K0.33 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

90 µm/m·K50 µin/in·°F
55 µm/m·K30.6 µin/in·°F

Max Service Temperature (continuous)

55°C131 °F
95°C203 °F

Min Service Temperature

-20°C-4 °F
-40°C-40 °F

Heat Deflection Temp. @ 0.45 MPa

60°C140 °F
105°C221 °F

Heat Deflection Temp. @ 1.8 MPa

50°C122 °F
85°C185 °F

Limiting Oxygen Index

19%
21%

Max Service Temperature (short-term)

75°C167 °F
130°C266 °F

Electrical

Conductivity and insulation.

Dielectric Constant (1 MHz)

3.4
3.8

Surface Resistivity

1×10¹⁴ Ω
—

Same in both: Electrical Resistivity 1×10¹² Ω·m3.94×10¹⁹ µΩ·in · Dielectric Strength 18 kV/mm457 V/mil · Dissipation Factor (1 MHz) 0.03 · Volume Resistivity 1×10¹⁴ Ω·cm

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

68 / 100
60 / 100

Same in both: UV / Weathering Resistance 25 / 100

Manufacturability

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

Weldability

5 / 100
—

Formability (cold)

5 / 100
—

Polishability

72 / 100
45 / 100

Mold Shrinkage

0.6%
0.3%

Processing Melt Temperature (typ.)

30°C86 °F
—

Mold Temperature (typ.)

—
70°C158 °F

Same in both: Machinability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

120 MJ/kg51,591 BTU/lb
105 MJ/kg45,142 BTU/lb

Embodied Carbon (primary production)

6.5 kg CO₂/kg
5.5 kg CO₂/kg

Embodied Water

200 L/kg24 gal/lb
250 L/kg30 gal/lb

Same in both: Typical Recycled Content 0%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

46 kN·m/kg
43 kN·m/kg

Specific Stiffness (E / density)

2 MN·m/kg
2.9 MN·m/kg

Thermal Diffusivity

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 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 scaleABS-LikeGF Nylon-Like

Manufacturing and finishing

CapabilityABS-LikeGF Nylon-Like
Default condition——
Relative cost$ Budget$$ Standard
Min. machined wall——
Best machined surface——

Both are offered for Urethane casting.

ABS-Like vs GF Nylon-Like — frequently asked

Is GF Nylon-Like stronger than ABS-Like?

Yes. GF Nylon-Like has a typical tensile strength of 60 MPa (8.7 ksi) against 52 MPa (7.54 ksi) for ABS-Like — about 15% more.

Which is cheaper, ABS-Like or GF Nylon-Like?

ABS-Like is the lower-cost material: it sits in the budget tier ($) while GF Nylon-Like is standard ($$). 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 ABS-Like over GF Nylon-Like?

Pick ABS-Like when the part is bent, formed or impact-loaded, or when weight is the constraint. Pick GF Nylon-Like 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 ABS-Like and GF 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.