FabDigit

T700S vs T300 vs T800H vs T1000G

Benchmark · 4 materials

Side-by-side benchmark of 4 composite grades.

T700S vs T300 and 2 more: properties

T700ST300T800HT1000G

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

230 GPa33.4 Msi
230 GPa33.4 Msi
294 GPa42.6 Msi
294 GPa42.6 Msi

Poisson's Ratio

0.27
0.27

Tensile Strength (Ultimate)

4,900 MPa711 ksi
3,530 MPa512 ksi
5,490 MPa796 ksi
6,370 MPa924 ksi

Elongation at Break

2.1%
1.5%
1.9%
2.2%

Compressive Strength

1,470 MPa213 ksi
1,570 MPa228 ksi
2,400 MPa348 ksi
1,570 MPa228 ksi

Flexural Strength

1,620 MPa235 ksi
1,700 MPa247 ksi
1,800 MPa261 ksi

Flexural Modulus

120 GPa17.4 Msi
165 GPa23.9 Msi

Shear Strength

98 MPa14.2 ksi
90 MPa13.1 ksi
100 MPa14.5 ksi

Physical

Density and transition temperatures.

Density

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

Thermal

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

Thermal Conductivity

9.4 W/m·K5.4 BTU/hr·ft·°F
10.5 W/m·K6.1 BTU/hr·ft·°F
35 W/m·K20.2 BTU/hr·ft·°F
10 W/m·K5.8 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
-0.56 µm/m·K-0.31 µin/in·°F
-0.5 µm/m·K-0.28 µin/in·°F

Max Service Temperature (continuous)

350°C662 °F
350°C662 °F
400°C752 °F
400°C752 °F

Same in both: Specific Heat Capacity 750 J/kg·K0.18 BTU/lb·°F · Min Service Temperature -269°C-452 °F · Max Service Temperature (short-term) 500°C932 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1.6×10⁻⁵ Ω·m630 µΩ·in
1.7×10⁻⁵ Ω·m669 µΩ·in
1.4×10⁻⁵ Ω·m551 µΩ·in
1.4×10⁻⁵ Ω·m551 µΩ·in

Volume Resistivity

0 Ω·cm
0 Ω·cm
0 Ω·cm

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

90 / 100
92 / 100
92 / 100
92 / 100

UV / Weathering Resistance

60 / 100
95 / 100
85 / 100
95 / 100

Manufacturability

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

Machinability

25 / 100
25 / 100
18 / 100
15 / 100

Polishability

55 / 100
40 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

400 MJ/kg171,969 BTU/lb
400 MJ/kg171,969 BTU/lb
500 MJ/kg214,962 BTU/lb
600 MJ/kg257,954 BTU/lb

Embodied Carbon (primary production)

28 kg CO₂/kg
26 kg CO₂/kg
34 kg CO₂/kg
35 kg CO₂/kg

Embodied Water

700 L/kg83.9 gal/lb
600 L/kg71.9 gal/lb
400 L/kg47.9 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
3,033 kN·m/kg
3,539 kN·m/kg

Specific Stiffness (E / density)

127.8 MN·m/kg
130.7 MN·m/kg
162.4 MN·m/kg
163.3 MN·m/kg

Thermal Diffusivity

7 mm²/s
8 mm²/s
25.8 mm²/s
7.4 mm²/s

Thermal Shock Resistance Index

-527
-393
-1,167
-433

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

CapabilityT700ST300T800HT1000G
Default condition
Relative cost$$$$ High$$$$ High$$$$ High$$$$ High
Min. machined wall
Best machined surface

Ready to make it?

Upload a CAD file and FabDigit prices the part in T700S 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.