FabDigitFabDigit

PA9T GF33 vs PA9T MF-GF

Polymer · PA9T grade comparison

PA9T GF33 and PA9T MF-GF are two grades of the same polymer grade, PA9T: GF33 (GF30–33) versus MF-GF (mineral / mineral+glass filled). The chemistry is identical, so every difference below comes from the condition. PA9T GF33 is the stronger of the two: tensile strength 195 MPa (28.3 ksi) against 130 MPa (18.9 ksi) for PA9T MF-GF, about 50% more. PA9T GF33 is the more ductile: elongation 2.5% versus 2.2% for PA9T MF-GF. PA9T GF33 is lighter (1.46 g/cm³ vs 1.55 g/cm³ for PA9T MF-GF) and PA9T GF33 is stiffer (10 GPa vs 8.5 GPa). On the shop floor, PA9T GF33 welds better (good vs poor).

PA9T GF33Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

PA9T GF33 vs PA9T MF-GF: properties

PA9T GF33PA9T MF-GF

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

10 GPa1.5 Msi
8.5 GPa1.2 Msi

Tensile Strength (Ultimate)

195 MPa28.3 ksi
130 MPa18.9 ksi

Elongation at Break

2.5%
2.2%

Compressive Strength

85 MPa12.3 ksi
140 MPa20.3 ksi

Flexural Strength

280 MPa40.6 ksi
190 MPa27.6 ksi

Flexural Modulus

9.5 GPa1.4 Msi
8 GPa1.2 Msi

Shear Strength

55 MPa8 ksi
85 MPa12.3 ksi

Izod Impact, Notched

90 J/m1.7 ft·lbf/in
55 J/m1 ft·lbf/in

Hardness, Rockwell M

100 HRM
96 HRM

Hardness, Rockwell R

120 HRR
123 HRR

Same in both: Poisson's Ratio 0.4 · Yield Strength (0.2% offset) 80 MPa11.6 ksi · Hardness, Shore D 80 Shore D

Physical

Density and transition temperatures.

Density

1.46 g/cm³0.05 lb/in³
1.55 g/cm³0.06 lb/in³

Water Absorption (24 h)

0.12%
0.18%

Same in both: Melting Temperature (Tm) 265°C509 °F · Glass Transition (Tg) 125°C257 °F · Water Absorption (Saturation) 2.2%

Thermal

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

Thermal Conductivity

0.35 W/m·K0.2 BTU/hr·ft·°F
0.4 W/m·K0.23 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

25 µm/m·K13.9 µin/in·°F
35 µm/m·K19.4 µin/in·°F

Max Service Temperature (continuous)

150°C302 °F
140°C284 °F

Heat Deflection Temp. @ 0.45 MPa

290°C554 °F
278°C532 °F

Heat Deflection Temp. @ 1.8 MPa

285°C545 °F
265°C509 °F

Limiting Oxygen Index

24%
25%

Same in both: Specific Heat Capacity 1,500 J/kg·K0.36 BTU/lb·°F · Min Service Temperature -40°C-40 °F · Vicat Softening Point (B50) 240°C464 °F · Max Service Temperature (short-term) 270°C518 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Resistivity 1×10¹³ Ω·m3.94×10²⁰ µΩ·in · Dielectric Strength 25 kV/mm635 V/mil · Dielectric Constant (1 MHz) 3.4 · Dissipation Factor (1 MHz) 0.015 · Volume Resistivity 1×10¹⁵ Ω·cm · Surface Resistivity 1×10¹⁵ Ω · Comparative Tracking Index (CTI) 600 V

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

82 / 100
80 / 100

Same in both: UV / Weathering Resistance 35 / 100

Manufacturability

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

Machinability

45 / 100
38 / 100

Weldability

55 / 100
25 / 100

Formability (cold)

40 / 100
8 / 100

Polishability

55 / 100
65 / 100

Mold Shrinkage

0.3%
0.5%

Same in both: Processing Melt Temperature (typ.) 310°C590 °F · Mold Temperature (typ.) 140°C284 °F

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 135 MJ/kg58,040 BTU/lb · Embodied Carbon (primary production) 8 kg CO₂/kg · Embodied Water 250 L/kg30 gal/lb · Typical Recycled Content 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 scalePA9T

PA9T GF33 vs PA9T MF-GF — frequently asked

Is PA9T GF33 stronger than PA9T MF-GF?

Yes. PA9T GF33 has a typical tensile strength of 195 MPa (28.3 ksi) against 130 MPa (18.9 ksi) for PA9T MF-GF — about 50% more.

Which grade does FabDigit quote by default, GF33 or MF-GF?

NEAT is the default PA9T condition in the FabDigit quote flow (neither GF33 nor MF-GF). The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.

Which is easier to machine, PA9T GF33 or PA9T MF-GF?

PA9T GF33, by a small margin. Both rate fair for machinability — 45/100 against 38/100 for PA9T MF-GF; for welding the order is PA9T GF33 first (good, 55/100) then PA9T MF-GF (poor, 25/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in PA9T GF33 and PA9T MF-GF 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.