C578 Type XIII vs JIS A9511 EPS
Polymer · grade comparison
C578 Type XIII and JIS A9511 EPS are both polymer grades. C578 Type XIII is the stronger of the two: tensile strength 0.3 MPa (0.0435 ksi) against 0.2 MPa (0.029 ksi) for JIS A9511 EPS, about 50% more. JIS A9511 EPS is lighter (0.02 g/cm³ vs 0.02 g/cm³ for C578 Type XIII) and C578 Type XIII is stiffer (0.01 GPa vs 0.01 GPa). On the shop floor, JIS A9511 EPS sits in a lower cost tier (standard, $$) than C578 Type XIII (premium, $$$).
C578 Type XIIIChoose it when strength drives the design.
JIS A9511 EPSChoose it when weight is the constraint, or when cost is the deciding factor.
C578 Type XIII 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
Poisson's Ratio
Tensile Strength (Ultimate)
Compressive Strength
Compressive Modulus
Flexural Strength
Shear Strength
Yield Strength (0.2% offset)
Elongation at Break
Flexural Modulus
Compression Set (22 h, 70 °C)
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
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
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 · Max Service Temperature (short-term) 85°C185 °F
Electrical
Conductivity and insulation.
Dielectric Constant (1 MHz)
Dissipation Factor (1 MHz)
Electrical Resistivity
Same in both: Volume Resistivity 1×10¹⁶ Ω·cm
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
UV / Weathering Resistance
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Formability (cold)
Weldability
Mold Shrinkage
Mold Temperature (typ.)
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)
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 | C578 Type XIII | JIS A9511 EPS |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$ Premium | $$ Standard |
| Min. machined wall | — | — |
| Best machined surface | — | — |
C578 Type XIII vs JIS A9511 EPS — frequently asked
Is C578 Type XIII stronger than JIS A9511 EPS?
Yes. C578 Type XIII has a typical tensile strength of 0.3 MPa (0.0435 ksi) against 0.2 MPa (0.029 ksi) for JIS A9511 EPS — about 50% more.
Which is cheaper, C578 Type XIII or JIS A9511 EPS?
JIS A9511 EPS is the lower-cost material: it sits in the standard tier ($$) while C578 Type XIII is premium ($$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
When should I choose C578 Type XIII over JIS A9511 EPS?
Pick C578 Type XIII when strength drives the design. Pick JIS A9511 EPS when weight is the constraint, or when cost is the deciding factor.
Ready to make it?
Upload a CAD file and FabDigit prices the part in C578 Type XIII 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.