FabDigitFabDigit

CCF300 vs T700S

Composite · grade comparison

CCF300 and T700S are both composite grades. T700S is the stronger of the two: tensile strength 4,900 MPa (711 ksi) against 3,530 MPa (512 ksi) for CCF300, about 39% more. T700S is the more ductile: elongation 2.1% versus 1.6% for CCF300. T700S conducts heat better (9.4 W/m·K vs 8 W/m·K).

T700SChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

CCF300 vs T700S: properties

CCF300T700S

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

3,530 MPa512 ksi
4,900 MPa711 ksi

Elongation at Break

1.6%
2.1%

Compressive Strength

2,000 MPa290 ksi
1,470 MPa213 ksi

Flexural Strength

—
1,620 MPa235 ksi

Flexural Modulus

—
120 GPa17.4 Msi

Shear Strength

—
98 MPa14.2 ksi

Same in both: Elastic (Young's) Modulus 230 GPa33.4 Msi · Poisson's Ratio 0.27

Physical

Density and transition temperatures.

Density

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

Thermal

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

Thermal Conductivity

8 W/m·K4.6 BTU/hr·ft·°F
9.4 W/m·K5.4 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

-0.4 µm/m·K-0.22 µin/in·°F
-0.38 µm/m·K-0.21 µin/in·°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 · Max Service Temperature (short-term) 500°C932 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

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

Volume Resistivity

0 Ω·cm
0 Ω·cm

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

88 / 100
90 / 100

UV / Weathering Resistance

90 / 100
60 / 100

Manufacturability

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

Same in both: Machinability 25 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

300 MJ/kg128,977 BTU/lb
400 MJ/kg171,969 BTU/lb

Embodied Carbon (primary production)

25 kg CO₂/kg
28 kg CO₂/kg

Same in both: Typical Recycled Content 0%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

1,983 kN·m/kg
2,722 kN·m/kg

Specific Stiffness (E / density)

129.2 MN·m/kg
127.8 MN·m/kg

Thermal Diffusivity

6 mm²/s
7 mm²/s

Thermal Shock Resistance Index

-307
-527

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

CapabilityCCF300T700S
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

CCF300 vs T700S — frequently asked

Is T700S stronger than CCF300?

Yes. T700S has a typical tensile strength of 4,900 MPa (711 ksi) against 3,530 MPa (512 ksi) for CCF300 — about 39% more.

Which is cheaper, CCF300 or T700S?

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 CCF300 over T700S?

Pick T700S 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 CCF300 and T700S 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.