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T1000G vs T700S

Composite · grade comparison

T1000G and T700S are both composite grades. T1000G is the stronger of the two: tensile strength 6,370 MPa (924 ksi) against 4,900 MPa (711 ksi) for T700S, about 30% more. T1000G is stiffer (294 GPa vs 230 GPa) and T1000G runs hotter in service (400°C vs 350°C continuous). On the shop floor, T700S machines more easily (25 vs 15 out of 100).

T1000GChoose it when strength drives the design, or when the part sees heat.

T700SChoose it when the part is machined in volume.

T1000G vs T700S: properties

T1000GT700S

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

294 GPa42.6 Msi
230 GPa33.4 Msi

Tensile Strength (Ultimate)

6,370 MPa924 ksi
4,900 MPa711 ksi

Elongation at Break

2.2%
2.1%

Compressive Strength

1,570 MPa228 ksi
1,470 MPa213 ksi

Flexural Strength

1,800 MPa261 ksi
1,620 MPa235 ksi

Flexural Modulus

165 GPa23.9 Msi
120 GPa17.4 Msi

Shear Strength

100 MPa14.5 ksi
98 MPa14.2 ksi

Same in both: Poisson's Ratio 0.27

Physical

Density and transition temperatures.

Same in both: Density 1.8 g/cm³0.07 lb/in³

Thermal

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

Thermal Conductivity

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

Thermal Expansion (CTE, 20–100 °C)

-0.5 µm/m·K-0.28 µin/in·°F
-0.38 µm/m·K-0.21 µin/in·°F

Max Service Temperature (continuous)

400°C752 °F
350°C662 °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

1.4×10⁻⁵ Ω·m551 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

92 / 100
90 / 100

UV / Weathering Resistance

95 / 100
60 / 100

Manufacturability

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

Machinability

15 / 100
25 / 100

Polishability

40 / 100
—

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

600 MJ/kg257,954 BTU/lb
400 MJ/kg171,969 BTU/lb

Embodied Carbon (primary production)

35 kg CO₂/kg
28 kg CO₂/kg

Embodied Water

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)

3,539 kN·m/kg
2,722 kN·m/kg

Specific Stiffness (E / density)

163.3 MN·m/kg
127.8 MN·m/kg

Thermal Diffusivity

7.4 mm²/s
7 mm²/s

Thermal Shock Resistance Index

-433
-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

CapabilityT1000GT700S
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

T1000G vs T700S — frequently asked

Is T1000G stronger than T700S?

Yes. T1000G has a typical tensile strength of 6,370 MPa (924 ksi) against 4,900 MPa (711 ksi) for T700S — about 30% more.

Which is cheaper, T1000G 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.

Which is easier to machine, T1000G or T700S?

T700S, by a small margin. Both rate poor for machinability — 25/100 against 15/100 for T1000G.

Ready to make it?

Upload a CAD file and FabDigit prices the part in T1000G 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.