FabDigit

PA11 vs PA6 and 2 more: properties

PA11PA6PA66PA12

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

1.6 GPa0.23 Msi
3 GPa0.44 Msi
3 GPa0.44 Msi
1.7 GPa0.25 Msi

Shear Modulus

0.55 GPa0.08 Msi
1.1 GPa0.15 Msi
1.1 GPa0.16 Msi
0.6 GPa0.09 Msi

Poisson's Ratio

0.4
0.39
0.39
0.4

Tensile Strength (Ultimate)

48 MPa7 ksi
80 MPa11.6 ksi
82 MPa11.9 ksi
48 MPa7 ksi

Yield Strength (0.2% offset)

40 MPa5.8 ksi
75 MPa10.9 ksi
80 MPa11.6 ksi
40 MPa5.8 ksi

Elongation at Break

45%
60%
40%
18%

Compressive Strength

50 MPa7.3 ksi
85 MPa12.3 ksi
95 MPa13.8 ksi
50 MPa7.3 ksi

Flexural Strength

47 MPa6.8 ksi
105 MPa15.2 ksi
105 MPa15.2 ksi
65 MPa9.4 ksi

Flexural Modulus

1.4 GPa0.2 Msi
2.8 GPa0.41 Msi
2.9 GPa0.42 Msi
1.6 GPa0.23 Msi

Fracture Toughness (K_IC)

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

Izod Impact, Notched

55 J/m1 ft·lbf/in
55 J/m1 ft·lbf/in
50 J/m0.94 ft·lbf/in
45 J/m0.84 ft·lbf/in

Hardness, Shore D

75 Shore D
81 Shore D
81 Shore D
77 Shore D

Hardness, Rockwell R

105 HRR
119 HRR
120 HRR
106 HRR

Bulk Modulus

5 GPa0.65 Msi
5 GPa0.65 Msi

Compressive Modulus

2.6 GPa0.38 Msi
2.8 GPa0.41 Msi
1.6 GPa0.23 Msi

Shear Strength

62 MPa9 ksi
60 MPa8.7 ksi
35 MPa5.1 ksi

Hardness, Rockwell M

82 HRM
85 HRM

Physical

Density and transition temperatures.

Density

1.03 g/cm³0.04 lb/in³
1.14 g/cm³0.04 lb/in³
1.14 g/cm³0.04 lb/in³
1.01 g/cm³0.04 lb/in³

Melting Temperature (Tm)

188°C370 °F
220°C428 °F
262°C504 °F
180°C356 °F

Glass Transition (Tg)

46°C115 °F
58°C136 °F
70°C158 °F
45°C113 °F

Water Absorption (24 h)

0.3%
1.7%
1.3%
0.3%

Water Absorption (Saturation)

1.9%
9%
8.5%
1.5%

Refractive Index

1.53
1.53

Thermal

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

Thermal Conductivity

0.25 W/m·K0.14 BTU/hr·ft·°F
0.25 W/m·K0.14 BTU/hr·ft·°F
0.25 W/m·K0.14 BTU/hr·ft·°F
0.23 W/m·K0.13 BTU/hr·ft·°F

Specific Heat Capacity

1,800 J/kg·K0.43 BTU/lb·°F
1,700 J/kg·K0.41 BTU/lb·°F
1,670 J/kg·K0.4 BTU/lb·°F
1,200 J/kg·K0.29 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

120 µm/m·K66.7 µin/in·°F
90 µm/m·K50 µin/in·°F
85 µm/m·K47.2 µin/in·°F
105 µm/m·K58.3 µin/in·°F

Max Service Temperature (continuous)

85°C185 °F
90°C194 °F
100°C212 °F
85°C185 °F

Min Service Temperature

-40°C-40 °F
-30°C-22 °F
-40°C-40 °F
-40°C-40 °F

Heat Deflection Temp. @ 0.45 MPa

180°C356 °F
170°C338 °F
220°C428 °F
165°C329 °F

Heat Deflection Temp. @ 1.8 MPa

50°C122 °F
65°C149 °F
80°C176 °F
90°C194 °F

Vicat Softening Point (B50)

160°C320 °F
190°C374 °F
200°C392 °F
150°C302 °F

Limiting Oxygen Index

25%
24%
25%
22%

Max Service Temperature (short-term)

130°C266 °F
150°C302 °F
170°C338 °F
140°C284 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1×10¹² Ω·m3.94×10¹⁹ µΩ·in
1×10¹² Ω·m3.94×10¹⁹ µΩ·in
1×10¹² Ω·m3.94×10¹⁹ µΩ·in
1×10¹¹ Ω·m3.94×10¹⁸ µΩ·in

Dielectric Strength

23 kV/mm584 V/mil
25 kV/mm635 V/mil
22 kV/mm559 V/mil
22 kV/mm559 V/mil

Dielectric Constant (1 MHz)

3.2
3.7
3.4
3

Dissipation Factor (1 MHz)

0.04
0.025
0.02
0.03

Volume Resistivity

1×10¹⁴ Ω·cm
1×10¹⁴ Ω·cm
1×10¹⁴ Ω·cm
1×10¹³ Ω·cm

Comparative Tracking Index (CTI)

600 V
600 V
600 V

Same in both: Surface Resistivity 1×10¹³ Ω

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

85 / 100
70 / 100
60 / 100
85 / 100

UV / Weathering Resistance

55 / 100
30 / 100
30 / 100
35 / 100

Manufacturability

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

Machinability

65 / 100
68 / 100
65 / 100
60 / 100

Weldability

70 / 100
62 / 100
70 / 100
60 / 100

Polishability

55 / 100
55 / 100
60 / 100
40 / 100

Mold Shrinkage

1.2%
1.2%
1.5%

Processing Melt Temperature (typ.)

235°C455 °F
260°C500 °F
290°C554 °F

Mold Temperature (typ.)

60°C140 °F
80°C176 °F
80°C176 °F

Formability (cold)

60 / 100
50 / 100

Melt Flow Rate

15 g/10 min
30 g/10 min

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

75 MJ/kg32,244 BTU/lb
125 MJ/kg53,740 BTU/lb
120 MJ/kg51,591 BTU/lb
138 MJ/kg59,329 BTU/lb

Embodied Carbon (primary production)

5 kg CO₂/kg
7.6 kg CO₂/kg
6.7 kg CO₂/kg
7.6 kg CO₂/kg

Typical Recycled Content

40%
5%
5%
30%

Embodied Water

400 L/kg47.9 gal/lb
300 L/kg35.9 gal/lb
250 L/kg30 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

47 kN·m/kg
70 kN·m/kg
72 kN·m/kg
48 kN·m/kg

Specific Stiffness (E / density)

1.6 MN·m/kg
2.6 MN·m/kg
2.6 MN·m/kg
1.7 MN·m/kg

Modulus of Resilience

500 kJ/m³
938 kJ/m³
1,067 kJ/m³
471 kJ/m³

Thermal Diffusivity

0.1 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 scalePA11PA12PA6PA66

Manufacturing and finishing

CapabilityPA11PA6PA66PA12
3D printingYesYes
CNC machiningYesYes
Sheet metalYesYes
Injection moldingYesYes
Default conditionUnfilledUnfilledUnfilledUnfilled
Relative cost$$$ Premium$ Budget$$ Standard$$ Standard
Min. machined wall0.5 mm0.5 mm
Best machined surfaceRa 0.8 µmRa 0.8 µm
Chrome Plating (Plastic)YesYes
Conductive CoatingYesYes
Dyeing (Nylon)YesYes
Primer CoatingYesYes
Spray PaintingYesYes
Tinted CoatingYesYes
Vacuum MetallizationYesYes
Waterproof CoatingYesYes

They share 4 finishes: EMI Shielding Coating, Painting, Soft Touch Coating, UV Coating.

Ready to make it?

Upload a CAD file and FabDigit prices the part in PA11 and PA6 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.