Xydar CF30 vs Xydar GF50
Polymer · Xydar grade comparison
Xydar CF30 and Xydar GF50 are two grades of the same polymer grade, Xydar: CF30 (30 % carbon-fiber reinforced) versus GF50 (50 % glass-fiber reinforced). The chemistry is identical, so every difference below comes from the condition. Xydar CF30 is the stronger of the two: tensile strength 190 MPa (27.6 ksi) against 150 MPa (21.8 ksi) for Xydar GF50, about 27% more. Xydar CF30 is lighter (1.55 g/cm³ vs 1.85 g/cm³ for Xydar GF50) and Xydar CF30 is stiffer (23 GPa vs 19.5 GPa).
Xydar CF30Choose it when strength drives the design, or when weight is the constraint.
Xydar CF30 vs Xydar GF50: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all polymer grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all polymer grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Tensile Strength (Ultimate)
Elongation at Break
Compressive Strength
Flexural Strength
Flexural Modulus
Shear Strength
Izod Impact, Notched
Hardness, Rockwell M
Same in both: Poisson's Ratio 0.35 · Fracture Toughness (K_IC) 2.5 MPa·√m2.3 ksi·√in · Hardness, Shore D 91 Shore D
Physical
Density and transition temperatures.
Density
Same in both: Melting Temperature (Tm) 350°C662 °F · Glass Transition (Tg) 135°C275 °F · Water Absorption (24 h) 0.03% · Water Absorption (Saturation) 0.1%
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Thermal Expansion (CTE, 20–100 °C)
Heat Deflection Temp. @ 0.45 MPa
Heat Deflection Temp. @ 1.8 MPa
Same in both: Specific Heat Capacity 1,150 J/kg·K0.27 BTU/lb·°F · Max Service Temperature (continuous) 250°C482 °F · Min Service Temperature -100°C-148 °F · Limiting Oxygen Index 50% · Max Service Temperature (short-term) 300°C572 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Surface Resistivity
Same in both: Dielectric Strength 35 kV/mm889 V/mil · Dielectric Constant (1 MHz) 3.7 · Dissipation Factor (1 MHz) 0.005 · Volume Resistivity 1×10¹⁵ Ω·cm · Comparative Tracking Index (CTI) 200 V
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: UV / Weathering Resistance 55 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Formability (cold)
Same in both: Weldability 12 / 100 · Polishability 40 / 100 · Mold Shrinkage 0.05% · Processing Melt Temperature (typ.) 380°C716 °F · Mold Temperature (typ.) 120°C248 °F
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 220 MJ/kg94,583 BTU/lb · Embodied Carbon (primary production) 10 kg CO₂/kg · Embodied Water 500 L/kg59.9 gal/lb · Typical Recycled Content 0%
Strength versus weight
Yield strength against density for every polymer grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Xydar CF30 vs Xydar GF50 — frequently asked
Is Xydar CF30 stronger than Xydar GF50?
Yes. Xydar CF30 has a typical tensile strength of 190 MPa (27.6 ksi) against 150 MPa (21.8 ksi) for Xydar GF50 — about 27% more.
Which grade does FabDigit quote by default, CF30 or GF50?
NEAT is the default Xydar condition in the FabDigit quote flow (neither CF30 nor GF50). The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.
Which is easier to machine, Xydar CF30 or Xydar GF50?
Xydar CF30, by a small margin. Both rate poor for machinability — 30/100 against 25/100 for Xydar GF50.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Xydar CF30 and Xydar GF50 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.