FabDigit

8552 vs T300 vs T700S vs T800H

Benchmark · 4 materials

Side-by-side benchmark of 4 composite grades.

8552 vs T300 and 2 more: properties

8552T300T700ST800H

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

164 GPa23.8 Msi
230 GPa33.4 Msi
230 GPa33.4 Msi
294 GPa42.6 Msi

Shear Modulus

5 GPa0.73 Msi

Poisson's Ratio

0.32
0.27

Tensile Strength (Ultimate)

2,720 MPa395 ksi
3,530 MPa512 ksi
4,900 MPa711 ksi
5,490 MPa796 ksi

Elongation at Break

1.6%
1.5%
2.1%
1.9%

Compressive Strength

1,690 MPa245 ksi
1,570 MPa228 ksi
1,470 MPa213 ksi
2,400 MPa348 ksi

Compressive Modulus

150 GPa21.8 Msi

Flexural Strength

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

Flexural Modulus

148 GPa21.5 Msi
120 GPa17.4 Msi

Shear Strength

118 MPa17.1 ksi
90 MPa13.1 ksi
98 MPa14.2 ksi

Physical

Density and transition temperatures.

Density

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

Glass Transition (Tg)

200°C392 °F

Water Absorption (24 h)

0.05%

Water Absorption (Saturation)

1.1%

Thermal

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

Thermal Conductivity

4 W/m·K2.3 BTU/hr·ft·°F
10.5 W/m·K6.1 BTU/hr·ft·°F
9.4 W/m·K5.4 BTU/hr·ft·°F
35 W/m·K20.2 BTU/hr·ft·°F

Specific Heat Capacity

900 J/kg·K0.21 BTU/lb·°F
750 J/kg·K0.18 BTU/lb·°F
750 J/kg·K0.18 BTU/lb·°F
750 J/kg·K0.18 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

-0.4 µm/m·K-0.22 µin/in·°F
-0.41 µm/m·K-0.23 µin/in·°F
-0.38 µm/m·K-0.21 µin/in·°F
-0.56 µm/m·K-0.31 µin/in·°F

Max Service Temperature (continuous)

120°C248 °F
350°C662 °F
350°C662 °F
400°C752 °F

Min Service Temperature

-55°C-67 °F
-269°C-452 °F
-269°C-452 °F
-269°C-452 °F

Max Service Temperature (short-term)

180°C356 °F
500°C932 °F
500°C932 °F
500°C932 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1.5×10⁻⁵ Ω·m591 µΩ·in
1.7×10⁻⁵ Ω·m669 µΩ·in
1.6×10⁻⁵ Ω·m630 µΩ·in
1.4×10⁻⁵ Ω·m551 µΩ·in

Volume Resistivity

0 Ω·cm
0 Ω·cm

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

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

UV / Weathering Resistance

30 / 100
95 / 100
60 / 100
85 / 100

Manufacturability

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

Machinability

30 / 100
25 / 100
25 / 100
18 / 100

Polishability

40 / 100
55 / 100

Mold Temperature (typ.)

180°C356 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

500 MJ/kg214,962 BTU/lb
400 MJ/kg171,969 BTU/lb
400 MJ/kg171,969 BTU/lb
500 MJ/kg214,962 BTU/lb

Embodied Carbon (primary production)

30 kg CO₂/kg
26 kg CO₂/kg
28 kg CO₂/kg
34 kg CO₂/kg

Embodied Water

500 L/kg59.9 gal/lb
700 L/kg83.9 gal/lb
600 L/kg71.9 gal/lb

Same in both: Typical Recycled Content 0%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

1,732 kN·m/kg
2,006 kN·m/kg
2,722 kN·m/kg
3,033 kN·m/kg

Specific Stiffness (E / density)

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

Thermal Diffusivity

2.8 mm²/s
8 mm²/s
7 mm²/s
25.8 mm²/s

Thermal Shock Resistance Index

-166
-393
-527
-1,167

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

Capability8552T300T700ST800H
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 8552 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.