PP-B ESD vs PP-B GF30
Polymer · PP-B grade comparison
PP-B ESD and PP-B GF30 are two grades of the same polymer grade, PP-B: ESD (ESD / conductive) versus GF30 (30% coupled glass fiber). The chemistry is identical, so every difference below comes from the condition. PP-B GF30 is the stronger of the two: yield strength 24 MPa (3.48 ksi) against 22 MPa (3.19 ksi) for PP-B ESD, about 9% more; tensile strength follows at 70 MPa (10.2 ksi) vs 23 MPa (3.34 ksi). In exchange, PP-B ESD is the more ductile: elongation 30% versus 3% for PP-B GF30. PP-B ESD is lighter (0.98 g/cm³ vs 1.13 g/cm³ for PP-B GF30) and PP-B GF30 is stiffer (6.2 GPa vs 1.5 GPa). On the shop floor, PP-B GF30 welds better (excellent vs very good).
PP-B ESDChoose it when the part is bent, formed or impact-loaded, or when weight is the constraint.
PP-B GF30Choose it when strength drives the design, or when the part sees heat.
PP-B ESD vs PP-B GF30: 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)
Yield Strength (0.2% offset)
Elongation at Break
Compressive Strength
Flexural Strength
Flexural Modulus
Shear Strength
Fracture Toughness (K_IC)
Izod Impact, Notched
Hardness, Shore D
Hardness, Rockwell R
Same in both: Shear Modulus 0.43 GPa0.06 Msi · Bulk Modulus 3 GPa0.46 Msi · Poisson's Ratio 0.42 · Compressive Modulus 1.2 GPa0.17 Msi
Physical
Density and transition temperatures.
Density
Same in both: Melting Temperature (Tm) 164°C327 °F · Glass Transition (Tg) -12°C10 °F · Water Absorption (24 h) 0.02% · Water Absorption (Saturation) 0.1% · Refractive Index 1.49
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Heat Deflection Temp. @ 0.45 MPa
Heat Deflection Temp. @ 1.8 MPa
Vicat Softening Point (B50)
Limiting Oxygen Index
Same in both: Specific Heat Capacity 1,800 J/kg·K0.43 BTU/lb·°F · Min Service Temperature -30°C-22 °F · Max Service Temperature (short-term) 120°C248 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Volume Resistivity
Surface Resistivity
Same in both: Dielectric Strength 25 kV/mm635 V/mil · Dielectric Constant (1 MHz) 2.25 · Dissipation Factor (1 MHz) 4×10⁻⁴ · Comparative Tracking Index (CTI) 600 V
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: UV / Weathering Resistance 25 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Weldability
Formability (cold)
Mold Shrinkage
Melt Flow Rate
Same in both: Machinability 50 / 100 · Polishability 40 / 100 · Processing Melt Temperature (typ.) 230°C446 °F · Mold Temperature (typ.) 40°C104 °F
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 78 MJ/kg33,534 BTU/lb · Embodied Carbon (primary production) 2 kg CO₂/kg · Embodied Water 100 L/kg12 gal/lb · Typical Recycled Content 5%
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.
PP-B ESD vs PP-B GF30 — frequently asked
Is PP-B GF30 stronger than PP-B ESD?
Yes. PP-B GF30 has a typical yield strength of 24 MPa (3.48 ksi) against 22 MPa (3.19 ksi) for PP-B ESD — about 9% more. Tensile strength is 70 MPa (10.2 ksi) vs 23 MPa (3.34 ksi).
Which grade does FabDigit quote by default, ESD or GF30?
Specify the condition in the material field or the drawing note; FabDigit prices the quote for the state you call out.
Which welds better, PP-B ESD or PP-B GF30?
PP-B GF30. Its weldability rates excellent (88/100) against very good (70/100) for PP-B ESD.
Ready to make it?
Upload a CAD file and FabDigit prices the part in PP-B ESD and PP-B GF30 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.