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PA11 vs PA46

Polymer · grade comparison

PA11 and PA46 are both polymer grades. PA46 is the stronger of the two: yield strength 95 MPa (13.8 ksi) against 40 MPa (5.8 ksi) for PA11, about 138% more; tensile strength follows at 100 MPa (14.5 ksi) vs 48 MPa (6.96 ksi). In exchange, PA11 is the more ductile: elongation 45% versus 40% for PA46, and PA46 is harder (83 Shore D vs 75 Shore D). PA11 is lighter (1.03 g/cm³ vs 1.18 g/cm³ for PA46) and PA46 is stiffer (3.3 GPa vs 1.6 GPa). On the shop floor, PA11 sits in a lower cost tier (premium, $$$) than PA46 (high, $$$$).

PA11Choose it when the part is bent, formed or impact-loaded, or when weight is the constraint.

PA46Choose it when strength drives the design, or when the part sees heat.

PA11 vs PA46: properties

PA11PA46

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

1.6 GPa0.23 Msi
3.3 GPa0.48 Msi

Shear Modulus

0.55 GPa0.08 Msi
1.2 GPa0.17 Msi

Tensile Strength (Ultimate)

48 MPa7 ksi
100 MPa14.5 ksi

Yield Strength (0.2% offset)

40 MPa5.8 ksi
95 MPa13.8 ksi

Elongation at Break

45%
40%

Compressive Strength

50 MPa7.3 ksi
95 MPa13.8 ksi

Flexural Strength

47 MPa6.8 ksi
130 MPa18.9 ksi

Flexural Modulus

1.4 GPa0.2 Msi
3.1 GPa0.45 Msi

Fracture Toughness (K_IC)

3.5 MPa·√m3.2 ksi·√in
—

Hardness, Shore D

75 Shore D
83 Shore D

Hardness, Rockwell R

105 HRR
120 HRR

Hardness, Rockwell M

—
88 HRM

Same in both: Poisson's Ratio 0.4 · Izod Impact, Notched 55 J/m1 ft·lbf/in

Physical

Density and transition temperatures.

Density

1.03 g/cm³0.04 lb/in³
1.18 g/cm³0.04 lb/in³

Melting Temperature (Tm)

188°C370 °F
295°C563 °F

Glass Transition (Tg)

46°C115 °F
78°C172 °F

Water Absorption (24 h)

0.3%
2%

Water Absorption (Saturation)

1.9%
12.5%

Thermal

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

Thermal Conductivity

0.25 W/m·K0.14 BTU/hr·ft·°F
0.3 W/m·K0.17 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

Thermal Expansion (CTE, 20–100 °C)

120 µm/m·K66.7 µin/in·°F
85 µm/m·K47.2 µin/in·°F

Max Service Temperature (continuous)

85°C185 °F
150°C302 °F

Heat Deflection Temp. @ 0.45 MPa

180°C356 °F
275°C527 °F

Heat Deflection Temp. @ 1.8 MPa

50°C122 °F
160°C320 °F

Vicat Softening Point (B50)

160°C320 °F
290°C554 °F

Max Service Temperature (short-term)

130°C266 °F
230°C446 °F

Same in both: Min Service Temperature -40°C-40 °F · Limiting Oxygen Index 25%

Electrical

Conductivity and insulation.

Dielectric Strength

23 kV/mm584 V/mil
28 kV/mm711 V/mil

Dielectric Constant (1 MHz)

3.2
3.6

Dissipation Factor (1 MHz)

0.04
0.02

Surface Resistivity

1×10¹³ Ω
1×10¹⁴ Ω

Comparative Tracking Index (CTI)

—
600 V

Same in both: Electrical Resistivity 1×10¹² Ω·m3.94×10¹⁹ µΩ·in · Volume Resistivity 1×10¹⁴ Ω·cm

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

85 / 100
70 / 100

UV / Weathering Resistance

55 / 100
35 / 100

Manufacturability

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

Polishability

55 / 100
60 / 100

Mold Shrinkage

1.2%
1.7%

Processing Melt Temperature (typ.)

235°C455 °F
315°C599 °F

Mold Temperature (typ.)

60°C140 °F
100°C212 °F

Formability (cold)

—
40 / 100

Same in both: Machinability 65 / 100 · Weldability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

75 MJ/kg32,244 BTU/lb
130 MJ/kg55,890 BTU/lb

Embodied Carbon (primary production)

5 kg CO₂/kg
7.5 kg CO₂/kg

Typical Recycled Content

40%
0%

Embodied Water

—
350 L/kg41.9 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

47 kN·m/kg
85 kN·m/kg

Specific Stiffness (E / density)

1.6 MN·m/kg
2.8 MN·m/kg

Modulus of Resilience

500 kJ/m³
1,367 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 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 scalePA11PA46

Manufacturing and finishing

CapabilityPA11PA46
3D printingYes—
Default conditionUnfilled—
Relative cost$$$ Premium$$$$ High
Min. machined wall——
Best machined surface——
Conductive CoatingYes—
Dyeing (Nylon)Yes—
EMI Shielding CoatingYes—
PaintingYes—
Primer CoatingYes—
Soft Touch CoatingYes—
Tinted CoatingYes—
UV CoatingYes—
Vacuum MetallizationYes—
Waterproof CoatingYes—

PA11 vs PA46 — frequently asked

Is PA46 stronger than PA11?

Yes. PA46 has a typical yield strength of 95 MPa (13.8 ksi) against 40 MPa (5.8 ksi) for PA11 — about 138% more. Tensile strength is 100 MPa (14.5 ksi) vs 48 MPa (6.96 ksi).

Which is cheaper, PA11 or PA46?

PA11 is the lower-cost material: it sits in the premium tier ($$$) while PA46 is high ($$$$). 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 PA11 over PA46?

Pick PA11 when the part is bent, formed or impact-loaded, or when weight is the constraint. Pick PA46 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 PA11 and PA46 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.