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Phenolic CE vs Phenolic XX

Composite · grade comparison

Phenolic CE and Phenolic XX are both composite grades. Phenolic XX is the stronger of the two: tensile strength 90 MPa (13.1 ksi) against 75 MPa (10.9 ksi) for Phenolic CE, about 20% more. Phenolic CE conducts heat better (0.3 W/m·K vs 0.25 W/m·K).

Phenolic XXChoose it when strength drives the design.

Phenolic CE vs Phenolic XX: properties

Phenolic CEPhenolic XX

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Shear Modulus

2.6 GPa0.38 Msi
2.7 GPa0.39 Msi

Poisson's Ratio

0.25
0.28

Tensile Strength (Ultimate)

75 MPa10.9 ksi
90 MPa13.1 ksi

Compressive Strength

255 MPa37 ksi
240 MPa34.8 ksi

Compressive Modulus

6.5 GPa0.94 Msi
7 GPa1 Msi

Flexural Strength

120 MPa17.4 ksi
124 MPa18 ksi

Flexural Modulus

7.5 GPa1.1 Msi
8 GPa1.2 Msi

Shear Strength

95 MPa13.8 ksi
83 MPa12 ksi

Fracture Toughness (K_IC)

2.5 MPa·√m2.3 ksi·√in
—

Izod Impact, Notched

130 J/m2.4 ft·lbf/in
27 J/m0.51 ft·lbf/in

Hardness, Rockwell R

120 HRR
125 HRR

Same in both: Elastic (Young's) Modulus 7 GPa1 Msi · Elongation at Break 1.5% · Hardness, Shore D 90 Shore D · Hardness, Rockwell M 105 HRM

Physical

Density and transition temperatures.

Density

1.37 g/cm³0.05 lb/in³
1.34 g/cm³0.05 lb/in³

Glass Transition (Tg)

160°C320 °F
170°C338 °F

Water Absorption (24 h)

1.1%
1.3%

Water Absorption (Saturation)

3.5%
4%

Thermal

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

Thermal Conductivity

0.3 W/m·K0.17 BTU/hr·ft·°F
0.25 W/m·K0.14 BTU/hr·ft·°F

Specific Heat Capacity

1,400 J/kg·K0.33 BTU/lb·°F
1,300 J/kg·K0.31 BTU/lb·°F

Max Service Temperature (continuous)

125°C257 °F
120°C248 °F

Min Service Temperature

-60°C-76 °F
-50°C-58 °F

Heat Deflection Temp. @ 0.45 MPa

180°C356 °F
175°C347 °F

Heat Deflection Temp. @ 1.8 MPa

165°C329 °F
150°C302 °F

Max Service Temperature (short-term)

175°C347 °F
150°C302 °F

Same in both: Thermal Expansion (CTE, 20–100 °C) 25 µm/m·K13.9 µin/in·°F · Limiting Oxygen Index 32%

Electrical

Conductivity and insulation.

Dielectric Strength

8 kV/mm203 V/mil
15 kV/mm381 V/mil

Dielectric Constant (1 MHz)

5.5
5

Dissipation Factor (1 MHz)

0.05
0.04

Same in both: Electrical Resistivity 1×10⁹ Ω·m3.94×10¹⁶ µΩ·in · Volume Resistivity 1×10¹¹ Ω·cm · Surface Resistivity 1×10¹¹ Ω · Comparative Tracking Index (CTI) 125 V

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

60 / 100
65 / 100

UV / Weathering Resistance

40 / 100
25 / 100

Manufacturability

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

Formability (cold)

8 / 100
15 / 100

Polishability

45 / 100
35 / 100

Same in both: Machinability 80 / 100 · Weldability 0 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

4.2 kg CO₂/kg
4.5 kg CO₂/kg

Embodied Water

3,000 L/kg359 gal/lb
—

Typical Recycled Content

0%
5%

Same in both: Embodied Energy (primary production) 80 MJ/kg34,394 BTU/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

55 kN·m/kg
67 kN·m/kg

Specific Stiffness (E / density)

5.1 MN·m/kg
5.2 MN·m/kg

Thermal Diffusivity

0.2 mm²/s
0.1 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 scalePhenolic CEPhenolic XX

Manufacturing and finishing

CapabilityPhenolic CEPhenolic XX
Default conditionPhenolic MatrixPhenolic 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.

Phenolic CE vs Phenolic XX — frequently asked

Is Phenolic XX stronger than Phenolic CE?

Yes. Phenolic XX has a typical tensile strength of 90 MPa (13.1 ksi) against 75 MPa (10.9 ksi) for Phenolic CE — about 20% more.

Which is cheaper, Phenolic CE or Phenolic XX?

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.

When should I choose Phenolic CE over Phenolic XX?

Pick Phenolic XX when strength drives the design.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Phenolic CE and Phenolic XX 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.