PP-H vs PP-T20
Polymer · grade comparison
PP-H and PP-T20 are both polymer grades. PP-H is the stronger of the two: yield strength 34 MPa (4.93 ksi) against 29 MPa (4.21 ksi) for PP-T20, about 17% more; tensile strength follows at 35 MPa (5.08 ksi) vs 30 MPa (4.35 ksi). PP-H is the more ductile: elongation 300% versus 12% for PP-T20. PP-H is lighter (0.91 g/cm³ vs 1.05 g/cm³ for PP-T20) and PP-T20 is stiffer (2.4 GPa vs 1.5 GPa). On the shop floor, PP-H welds better (excellent vs very good).
PP-HChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
PP-H vs PP-T20: 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
Shear Modulus
Bulk Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Compressive Strength
Compressive Modulus
Flexural Strength
Flexural Modulus
Shear Strength
Fracture Toughness (K_IC)
Izod Impact, Notched
Hardness, Rockwell M
Hardness, Rockwell R
Same in both: Hardness, Shore D 72 Shore D
Physical
Density and transition temperatures.
Density
Water Absorption (24 h)
Water Absorption (Saturation)
Refractive Index
Same in both: Melting Temperature (Tm) 165°C329 °F · Glass Transition (Tg) -10°C14 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Min Service Temperature
Heat Deflection Temp. @ 0.45 MPa
Heat Deflection Temp. @ 1.8 MPa
Vicat Softening Point (B50)
Limiting Oxygen Index
Max Service Temperature (short-term)
Electrical
Conductivity and insulation.
Electrical Resistivity
Dielectric Strength
Dielectric Constant (1 MHz)
Dissipation Factor (1 MHz)
Volume Resistivity
Surface Resistivity
Same in both: Comparative Tracking Index (CTI) 600 V
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
UV / Weathering Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Formability (cold)
Polishability
Mold Shrinkage
Processing Melt Temperature (typ.)
Mold Temperature (typ.)
Same in both: Melt Flow Rate 12 g/10 min
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Same in both: Thermal Shock Resistance Index 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.
Manufacturing and finishing
| Capability | PP-H | PP-T20 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $ Budget | $ Budget |
| Min. machined wall | — | — |
| Best machined surface | — | — |
PP-H vs PP-T20 — frequently asked
Is PP-H stronger than PP-T20?
Yes. PP-H has a typical yield strength of 34 MPa (4.93 ksi) against 29 MPa (4.21 ksi) for PP-T20 — about 17% more. Tensile strength is 35 MPa (5.08 ksi) vs 30 MPa (4.35 ksi).
Which is cheaper, PP-H or PP-T20?
Both sit in the same relative cost tier ($, budget); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, PP-H or PP-T20?
PP-H, by a small margin. Both rate good for machinability — 65/100 against 58/100 for PP-T20; for welding the order is PP-H first (excellent, 90/100) then PP-T20 (very good, 70/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in PP-H and PP-T20 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.