Extem XH1015 CF30 vs Extem XH1015 UNF
Polymer · Extem XH1015 grade comparison
Extem XH1015 CF30 and Extem XH1015 UNF are two grades of the same polymer grade, Extem XH1015: CF30 (30% carbon-fiber reinforced compound) versus UNF (unfilled / Natural (transparent amber) injection-molding pellet). The chemistry is identical, so every difference below comes from the condition. Extem XH1015 CF30 is the stronger of the two: tensile strength 210 MPa (30.5 ksi) against 115 MPa (16.7 ksi) for Extem XH1015 UNF, about 83% more. In exchange, Extem XH1015 UNF is the more ductile: elongation 30% versus 1.6% for Extem XH1015 CF30. Extem XH1015 UNF is lighter (1.31 g/cm³ vs 1.42 g/cm³ for Extem XH1015 CF30) and Extem XH1015 CF30 is stiffer (19 GPa vs 3.6 GPa). On the shop floor, Extem XH1015 UNF machines more easily (good vs fair).
Extem XH1015 CF30Choose it when strength drives the design.
Extem XH1015 UNFChoose it when the part is bent, formed or impact-loaded, or when weight is the constraint.
Extem XH1015 CF30 vs Extem XH1015 UNF: 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.
Extem XH1015 CF30Extem XH1015 UNF
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Tensile Strength (Ultimate)
Elongation at Break
Flexural Strength
Flexural Modulus
Same in both: Shear Modulus 1.3 GPa0.19 Msi · Poisson's Ratio 0.38 · Yield Strength (0.2% offset) 115 MPa16.7 ksi · Compressive Strength 160 MPa23.2 ksi · Compressive Modulus 3.3 GPa0.48 Msi · Shear Strength 90 MPa13.1 ksi · Fracture Toughness (K_IC) 2.8 MPa·√m2.5 ksi·√in · Izod Impact, Notched 45 J/m0.84 ft·lbf/in · Hardness, Shore D 88 Shore D · Hardness, Rockwell M 112 HRM
Physical
Density and transition temperatures.
Density
Same in both: Glass Transition (Tg) 267°C513 °F · Water Absorption (24 h) 0.4% · Water Absorption (Saturation) 1.4% · Refractive Index 1.67
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Thermal Expansion (CTE, 20–100 °C)
Heat Deflection Temp. @ 1.8 MPa
Same in both: Specific Heat Capacity 1,200 J/kg·K0.29 BTU/lb·°F · Max Service Temperature (continuous) 230°C446 °F · Min Service Temperature -50°C-58 °F · Heat Deflection Temp. @ 0.45 MPa 262°C504 °F · Vicat Softening Point (B50) 265°C509 °F · Limiting Oxygen Index 50% · Max Service Temperature (short-term) 300°C572 °F
Electrical
Conductivity and insulation.
Surface Resistivity
Same in both: Electrical Resistivity 1×10¹⁵ Ω·m3.94×10²² µΩ·in · Dielectric Strength 22 kV/mm559 V/mil · Dielectric Constant (1 MHz) 3.2 · Dissipation Factor (1 MHz) 0.004 · Volume Resistivity 1×10¹⁷ Ω·cm · Comparative Tracking Index (CTI) 175 V
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Corrosion Resistance 88 / 100 · UV / Weathering Resistance 40 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Same in both: Weldability 35 / 100 · Formability (cold) 30 / 100 · Polishability 70 / 100 · Mold Shrinkage 0.6% · Melt Flow Rate 15 g/10 min · Processing Melt Temperature (typ.) 400°C752 °F · Mold Temperature (typ.) 200°C392 °F
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 260 MJ/kg111,780 BTU/lb · Embodied Carbon (primary production) 13 kg CO₂/kg · Embodied Water 350 L/kg41.9 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.
Extem XH1015 CF30 vs Extem XH1015 UNF — frequently asked
Is Extem XH1015 CF30 stronger than Extem XH1015 UNF?
Yes. Extem XH1015 CF30 has a typical tensile strength of 210 MPa (30.5 ksi) against 115 MPa (16.7 ksi) for Extem XH1015 UNF — about 83% more.
Which grade does FabDigit quote by default, CF30 or UNF?
UNF is the default Extem XH1015 condition in the FabDigit quote flow. 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, Extem XH1015 CF30 or Extem XH1015 UNF?
Extem XH1015 UNF. Its machinability rates good (55/100) against fair (35/100) for Extem XH1015 CF30.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Extem XH1015 CF30 and Extem XH1015 UNF 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.