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G10-ESD vs G11

Composite · grade comparison

G10-ESD and G11 are both composite grades. G11 is the stronger of the two: tensile strength 340 MPa (49.3 ksi) against 300 MPa (43.5 ksi) for G10-ESD, about 13% more. G11 is stiffer (22 GPa vs 20 GPa) and G11 runs hotter in service (180°C vs 130°C continuous).

G11Choose it when strength drives the design, or when the part sees heat.

G10-ESD vs G11: properties

G10-ESDG11

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

20 GPa2.9 Msi
22 GPa3.2 Msi

Poisson's Ratio

0.15
0.13

Tensile Strength (Ultimate)

300 MPa43.5 ksi
340 MPa49.3 ksi

Elongation at Break

2%
1.8%

Compressive Modulus

18 GPa2.6 Msi
20 GPa2.9 Msi

Flexural Strength

440 MPa63.8 ksi
450 MPa65.3 ksi

Flexural Modulus

19 GPa2.8 Msi
22 GPa3.2 Msi

Shear Strength

130 MPa18.9 ksi
140 MPa20.3 ksi

Fracture Toughness (K_IC)

25 MPa·√m22.8 ksi·√in
20 MPa·√m18.2 ksi·√in

Izod Impact, Notched

480 J/m9 ft·lbf/in
400 J/m7.5 ft·lbf/in

Hardness, Rockwell R

125 HRR
—

Hardness, Shore D

—
88 Shore D

Same in both: Shear Modulus 5.5 GPa0.8 Msi · Compressive Strength 450 MPa65.3 ksi · Hardness, Rockwell M 110 HRM

Physical

Density and transition temperatures.

Glass Transition (Tg)

120°C248 °F
150°C302 °F

Water Absorption (24 h)

0.12%
0.1%

Water Absorption (Saturation)

0.5%
0.35%

Same in both: Density 1.85 g/cm³0.07 lb/in³

Thermal

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

Thermal Conductivity

0.3 W/m·K0.17 BTU/hr·ft·°F
0.33 W/m·K0.19 BTU/hr·ft·°F

Max Service Temperature (continuous)

130°C266 °F
180°C356 °F

Min Service Temperature

-60°C-76 °F
-196°C-321 °F

Heat Deflection Temp. @ 0.45 MPa

215°C419 °F
—

Limiting Oxygen Index

23%
22%

Max Service Temperature (short-term)

155°C311 °F
220°C428 °F

Same in both: Specific Heat Capacity 1,100 J/kg·K0.26 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 14 µm/m·K7.8 µin/in·°F · Heat Deflection Temp. @ 1.8 MPa 200°C392 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1×10⁸ Ω·m3.94×10¹⁵ µΩ·in
1×10¹² Ω·m3.94×10¹⁹ µΩ·in

Volume Resistivity

1×10¹⁰ Ω·cm
1×10¹⁴ Ω·cm

Surface Resistivity

1×10⁷ Ω
1×10¹³ Ω

Dielectric Strength

—
16 kV/mm406 V/mil

Dielectric Constant (1 MHz)

—
5.2

Dissipation Factor (1 MHz)

—
0.02

Comparative Tracking Index (CTI)

—
200 V

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

85 / 100
88 / 100

UV / Weathering Resistance

40 / 100
45 / 100

Manufacturability

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

Machinability

38 / 100
45 / 100

Polishability

25 / 100
30 / 100

Same in both: Weldability 0 / 100 · Formability (cold) 3 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

120 MJ/kg51,591 BTU/lb
110 MJ/kg47,292 BTU/lb

Same in both: Embodied Carbon (primary production) 7 kg CO₂/kg · Embodied Water 200 L/kg24 gal/lb · Typical Recycled Content 0%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

162 kN·m/kg
184 kN·m/kg

Specific Stiffness (E / density)

10.8 MN·m/kg
11.9 MN·m/kg

Thermal Diffusivity

0.1 mm²/s
0.2 mm²/s

Same in both: Thermal Shock Resistance Index 0

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 scaleG11G10-ESD

Manufacturing and finishing

CapabilityG10-ESDG11
Default conditionEpoxy MatrixEpoxy Matrix
Relative cost$$$ Premium$$$ Premium
Min. machined wall——
Best machined surface——

Both are offered for CNC machining and Sheet metal. Both take the same 1 finish: Painting.

G10-ESD vs G11 — frequently asked

Is G11 stronger than G10-ESD?

Yes. G11 has a typical tensile strength of 340 MPa (49.3 ksi) against 300 MPa (43.5 ksi) for G10-ESD — about 13% more.

Which is cheaper, G10-ESD or G11?

Both sit in the same relative cost tier ($$$, premium); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which is easier to machine, G10-ESD or G11?

G11, by a small margin. Both rate fair for machinability — 45/100 against 38/100 for G10-ESD.

Ready to make it?

Upload a CAD file and FabDigit prices the part in G10-ESD and G11 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.