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Torlon 7130 vs Ultem 2300

Polymer · grade comparison

Torlon 7130 and Ultem 2300 are both polymer grades. Torlon 7130 is the stronger of the two: tensile strength 203 MPa (29.4 ksi) against 169 MPa (24.5 ksi) for Ultem 2300, about 20% more. Torlon 7130 is the more ductile: elongation 6% versus 3% for Ultem 2300. Torlon 7130 is stiffer (22.4 GPa vs 9 GPa) and Torlon 7130 runs hotter in service (250°C vs 170°C continuous). On the shop floor, Ultem 2300 machines more easily (good vs fair) and Ultem 2300 welds better (fair vs not recommended).

Torlon 7130Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

Ultem 2300Choose it when the part is machined in volume, or when it will be welded.

Torlon 7130 vs Ultem 2300: properties

Torlon 7130Ultem 2300

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

22.4 GPa3.2 Msi
9 GPa1.3 Msi

Poisson's Ratio

0.38
0.37

Tensile Strength (Ultimate)

203 MPa29.4 ksi
169 MPa24.5 ksi

Elongation at Break

6%
3%

Compressive Strength

260 MPa37.7 ksi
195 MPa28.3 ksi

Compressive Modulus

15 GPa2.2 Msi
7.5 GPa1.1 Msi

Flexural Strength

320 MPa46.4 ksi
230 MPa33.4 ksi

Flexural Modulus

17.2 GPa2.5 Msi
8.6 GPa1.2 Msi

Shear Strength

130 MPa18.9 ksi
100 MPa14.5 ksi

Izod Impact, Notched

45 J/m0.84 ft·lbf/in
100 J/m1.9 ft·lbf/in

Hardness, Rockwell M

120 HRM
114 HRM

Shear Modulus

—
3.3 GPa0.48 Msi

Yield Strength (0.2% offset)

—
169 MPa24.5 ksi

Same in both: Fracture Toughness (K_IC) 3.5 MPa·√m3.2 ksi·√in · Hardness, Shore D 90 Shore D

Physical

Density and transition temperatures.

Density

1.48 g/cm³0.05 lb/in³
1.51 g/cm³0.05 lb/in³

Glass Transition (Tg)

275°C527 °F
217°C423 °F

Water Absorption (24 h)

0.24%
0.22%

Water Absorption (Saturation)

2.6%
0.9%

Thermal

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

Thermal Conductivity

0.53 W/m·K0.31 BTU/hr·ft·°F
0.3 W/m·K0.17 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

9 µm/m·K5 µin/in·°F
20 µm/m·K11.1 µin/in·°F

Max Service Temperature (continuous)

250°C482 °F
170°C338 °F

Min Service Temperature

-196°C-321 °F
-50°C-58 °F

Heat Deflection Temp. @ 0.45 MPa

285°C545 °F
216°C421 °F

Heat Deflection Temp. @ 1.8 MPa

279°C534 °F
210°C410 °F

Max Service Temperature (short-term)

280°C536 °F
200°C392 °F

Vicat Softening Point (B50)

—
219°C426 °F

Same in both: Specific Heat Capacity 1,000 J/kg·K0.24 BTU/lb·°F · Limiting Oxygen Index 50%

Electrical

Conductivity and insulation.

Electrical Resistivity

100 Ω·m3.94×10⁹ µΩ·in
1×10¹⁴ Ω·m3.94×10²¹ µΩ·in

Volume Resistivity

10,000 Ω·cm
1×10¹⁶ Ω·cm

Dielectric Strength

—
28 kV/mm711 V/mil

Dielectric Constant (1 MHz)

—
3.5

Dissipation Factor (1 MHz)

—
0.0022

Surface Resistivity

—
1×10¹⁶ Ω

Comparative Tracking Index (CTI)

—
175 V

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

UV / Weathering Resistance

60 / 100
45 / 100

Same in both: Corrosion Resistance 85 / 100

Manufacturability

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

Machinability

45 / 100
55 / 100

Weldability

5 / 100
45 / 100

Formability (cold)

5 / 100
10 / 100

Polishability

55 / 100
40 / 100

Mold Shrinkage

0.1%
0.3%

Processing Melt Temperature (typ.)

350°C662 °F
380°C716 °F

Mold Temperature (typ.)

215°C419 °F
150°C302 °F

Melt Flow Rate

—
6 g/10 min

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

300 MJ/kg128,977 BTU/lb
160 MJ/kg68,788 BTU/lb

Embodied Carbon (primary production)

15 kg CO₂/kg
8 kg CO₂/kg

Embodied Water

—
350 L/kg41.9 gal/lb

Same in both: Typical Recycled Content 0%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

137 kN·m/kg
112 kN·m/kg

Specific Stiffness (E / density)

15.1 MN·m/kg
6 MN·m/kg

Thermal Diffusivity

0.4 mm²/s
0.2 mm²/s

Thermal Shock Resistance Index

1
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 scaleUltem 2300

Manufacturing and finishing

CapabilityTorlon 7130Ultem 2300
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Torlon 7130 vs Ultem 2300 — frequently asked

Is Torlon 7130 stronger than Ultem 2300?

Yes. Torlon 7130 has a typical tensile strength of 203 MPa (29.4 ksi) against 169 MPa (24.5 ksi) for Ultem 2300 — about 20% more.

Which is cheaper, Torlon 7130 or Ultem 2300?

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, Torlon 7130 or Ultem 2300?

Ultem 2300. Its machinability rates good (55/100) against fair (45/100) for Torlon 7130; for welding the order is Ultem 2300 first (fair, 45/100) then Torlon 7130 (not recommended, 5/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in Torlon 7130 and Ultem 2300 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.