EPS 100 vs JIS A9511 EPS
Polymer · grade comparison
EPS 100 and JIS A9511 EPS are both polymer grades. EPS 100 is the stronger of the two: tensile strength 0.25 MPa (0.0363 ksi) against 0.2 MPa (0.029 ksi) for JIS A9511 EPS, about 25% more. EPS 100 is the more ductile: elongation 1.8% versus 1.5% for JIS A9511 EPS. JIS A9511 EPS is lighter (0.02 g/cm³ vs 0.02 g/cm³ for EPS 100) and EPS 100 is stiffer (0.01 GPa vs 0.01 GPa).
EPS 100Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.
JIS A9511 EPSChoose it when weight is the constraint.
EPS 100 vs JIS A9511 EPS: 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
Tensile Strength (Ultimate)
Elongation at Break
Compressive Strength
Compressive Modulus
Flexural Strength
Flexural Modulus
Shear Strength
Yield Strength (0.2% offset)
Compression Set (22 h, 70 °C)
Same in both: Poisson's Ratio 0.1
Physical
Density and transition temperatures.
Density
Water Absorption (24 h)
Water Absorption (Saturation)
Same in both: Glass Transition (Tg) 100°C212 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Min Service Temperature
Limiting Oxygen Index
Vicat Softening Point (B50)
Same in both: Specific Heat Capacity 1,400 J/kg·K0.33 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 65 µm/m·K36.1 µin/in·°F · Max Service Temperature (continuous) 75°C167 °F · Max Service Temperature (short-term) 85°C185 °F
Electrical
Conductivity and insulation.
Dielectric Constant (1 MHz)
Dissipation Factor (1 MHz)
Same in both: Electrical Resistivity 1×10¹⁴ Ω·m3.94×10²¹ µΩ·in · Volume Resistivity 1×10¹⁶ Ω·cm
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)
Mold Shrinkage
Mold Temperature (typ.)
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Same in both: Typical Recycled Content 5%
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Thermal Diffusivity
Same in both: Specific Stiffness (E / density) 0.3 MN·m/kg · 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 | EPS 100 | JIS A9511 EPS |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$ Standard | $$ Standard |
| Min. machined wall | — | — |
| Best machined surface | — | — |
EPS 100 vs JIS A9511 EPS — frequently asked
Is EPS 100 stronger than JIS A9511 EPS?
Yes. EPS 100 has a typical tensile strength of 0.25 MPa (0.0363 ksi) against 0.2 MPa (0.029 ksi) for JIS A9511 EPS — about 25% more.
Which is cheaper, EPS 100 or JIS A9511 EPS?
Both sit in the same relative cost tier ($$, standard); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, EPS 100 or JIS A9511 EPS?
EPS 100, by a small margin. Both rate excellent for machinability — 95/100 against 90/100 for JIS A9511 EPS; for welding the order is JIS A9511 EPS first (poor, 30/100) then EPS 100 (poor, 25/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in EPS 100 and JIS A9511 EPS 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.