FabDigitFabDigit

CCF700 vs T300

Composite · grade comparison

CCF700 and T300 are both composite grades. CCF700 is the stronger of the two: tensile strength 4,900 MPa (711 ksi) against 3,530 MPa (512 ksi) for T300, about 39% more. CCF700 is the more ductile: elongation 2.1% versus 1.5% for T300. T300 conducts heat better (10.5 W/m·K vs 9 W/m·K).

CCF700Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

CCF700 vs T300: properties

CCF700T300

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Poisson's Ratio

0.25
—

Tensile Strength (Ultimate)

4,900 MPa711 ksi
3,530 MPa512 ksi

Elongation at Break

2.1%
1.5%

Compressive Strength

—
1,570 MPa228 ksi

Flexural Strength

—
1,700 MPa247 ksi

Shear Strength

—
90 MPa13.1 ksi

Same in both: Elastic (Young's) Modulus 230 GPa33.4 Msi

Physical

Density and transition temperatures.

Density

1.8 g/cm³0.07 lb/in³
1.76 g/cm³0.06 lb/in³

Thermal

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

Thermal Conductivity

9 W/m·K5.2 BTU/hr·ft·°F
10.5 W/m·K6.1 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

-0.38 µm/m·K-0.21 µin/in·°F
-0.41 µm/m·K-0.23 µin/in·°F

Limiting Oxygen Index

55%
—

Max Service Temperature (short-term)

—
500°C932 °F

Same in both: Specific Heat Capacity 750 J/kg·K0.18 BTU/lb·°F · Max Service Temperature (continuous) 350°C662 °F · Min Service Temperature -269°C-452 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1.6×10⁻⁵ Ω·m630 µΩ·in
1.7×10⁻⁵ Ω·m669 µΩ·in

Volume Resistivity

—
0 Ω·cm

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

85 / 100
92 / 100

UV / Weathering Resistance

55 / 100
95 / 100

Manufacturability

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

Polishability

45 / 100
55 / 100

Same in both: Machinability 25 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

280 MJ/kg120,378 BTU/lb
400 MJ/kg171,969 BTU/lb

Embodied Carbon (primary production)

24 kg CO₂/kg
26 kg CO₂/kg

Embodied Water

—
700 L/kg83.9 gal/lb

Same in both: Typical Recycled Content 0%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

2,722 kN·m/kg
2,006 kN·m/kg

Specific Stiffness (E / density)

127.8 MN·m/kg
130.7 MN·m/kg

Thermal Diffusivity

6.7 mm²/s
8 mm²/s

Thermal Shock Resistance Index

-505
-393

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

CapabilityCCF700T300
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

CCF700 vs T300 — frequently asked

Is CCF700 stronger than T300?

Yes. CCF700 has a typical tensile strength of 4,900 MPa (711 ksi) against 3,530 MPa (512 ksi) for T300 — about 39% more.

Which is cheaper, CCF700 or T300?

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.

When should I choose CCF700 over T300?

Pick CCF700 when strength drives the design, or when the part is bent, formed or impact-loaded.

Ready to make it?

Upload a CAD file and FabDigit prices the part in CCF700 and T300 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.