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Technora vs Twaron

Composite · grade comparison

Technora and Twaron are both composite grades. Technora is the stronger of the two: tensile strength 3,400 MPa (493 ksi) against 3,100 MPa (450 ksi) for Twaron, about 10% more. Technora is the more ductile: elongation 4.4% versus 3.6% for Twaron. Technora is lighter (1.39 g/cm³ vs 1.44 g/cm³ for Twaron) and Technora runs hotter in service (200°C vs 180°C continuous).

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

Technora vs Twaron: properties

TechnoraTwaron

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

72 GPa10.4 Msi
70 GPa10.2 Msi

Poisson's Ratio

0.35
0.36

Tensile Strength (Ultimate)

3,400 MPa493 ksi
3,100 MPa450 ksi

Elongation at Break

4.4%
3.6%

Compressive Strength

350 MPa50.8 ksi
400 MPa58 ksi

Shear Strength

50 MPa7.3 ksi
45 MPa6.5 ksi

Shear Modulus

—
2.9 GPa0.42 Msi

Physical

Density and transition temperatures.

Density

1.39 g/cm³0.05 lb/in³
1.44 g/cm³0.05 lb/in³

Glass Transition (Tg)

300°C572 °F
340°C644 °F

Water Absorption (24 h)

2%
4.5%

Water Absorption (Saturation)

3%
—

Thermal

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

Thermal Expansion (CTE, 20–100 °C)

-3 µm/m·K-1.7 µin/in·°F
-3.5 µm/m·K-1.9 µin/in·°F

Max Service Temperature (continuous)

200°C392 °F
180°C356 °F

Min Service Temperature

-70°C-94 °F
-196°C-321 °F

Limiting Oxygen Index

25%
29%

Max Service Temperature (short-term)

300°C572 °F
250°C482 °F

Same in both: Thermal Conductivity 0.05 W/m·K0.03 BTU/hr·ft·°F · Specific Heat Capacity 1,420 J/kg·K0.34 BTU/lb·°F

Electrical

Conductivity and insulation.

Dielectric Constant (1 MHz)

3.8
4

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).

UV / Weathering Resistance

25 / 100
20 / 100

Same in both: Corrosion Resistance 80 / 100

Manufacturability

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

Machinability

20 / 100
25 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

260 MJ/kg111,780 BTU/lb
280 MJ/kg120,378 BTU/lb

Embodied Carbon (primary production)

15 kg CO₂/kg
16 kg CO₂/kg

Same in both: Embodied Water 400 L/kg47.9 gal/lb · Typical Recycled Content 0%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

2,446 kN·m/kg
2,153 kN·m/kg

Specific Stiffness (E / density)

51.8 MN·m/kg
48.6 MN·m/kg

Same in both: Thermal Diffusivity 0 mm²/s · Thermal Shock Resistance Index -1

Strength versus weight

Yield strength against density for every composite grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

1101001,000510Density (g/cm³)Yield strength (MPa) — log scale

Manufacturing and finishing

CapabilityTechnoraTwaron
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Technora vs Twaron — frequently asked

Is Technora stronger than Twaron?

Yes. Technora has a typical tensile strength of 3,400 MPa (493 ksi) against 3,100 MPa (450 ksi) for Twaron — about 10% more.

Which is cheaper, Technora or Twaron?

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, Technora or Twaron?

Twaron, by a small margin. Both rate poor for machinability — 25/100 against 20/100 for Technora.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Technora and Twaron 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.