GB/T 10801.1 Type III vs JIS A9511 EPS
Polymer · grade comparison
GB/T 10801.1 Type III and JIS A9511 EPS are both polymer grades. GB/T 10801.1 Type III 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. GB/T 10801.1 Type III is the more ductile: elongation 2% versus 1.5% for JIS A9511 EPS. JIS A9511 EPS is lighter (0.02 g/cm³ vs 0.03 g/cm³ for GB/T 10801.1 Type III) and GB/T 10801.1 Type III is stiffer (0.01 GPa vs 0.01 GPa).
GB/T 10801.1 Type IIIChoose 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.
GB/T 10801.1 Type III 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.
GB/T 10801.1 Type IIIJIS A9511 EPS
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Tensile Strength (Ultimate)
Elongation at Break
Compressive Strength
Compressive Modulus
Flexural Strength
Shear Strength
Yield Strength (0.2% offset)
Flexural Modulus
Compression Set (22 h, 70 °C)
Same in both: Poisson's Ratio 0.1
Physical
Density and transition temperatures.
Density
Water Absorption (Saturation)
Same in both: Glass Transition (Tg) 100°C212 °F · Water Absorption (24 h) 1.5%
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Min Service Temperature
Vicat Softening Point (B50)
Limiting Oxygen Index
Max Service Temperature (short-term)
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
Electrical
Conductivity and insulation.
Dissipation Factor (1 MHz)
Same in both: Electrical Resistivity 1×10¹⁴ Ω·m3.94×10²¹ µΩ·in · Dielectric Constant (1 MHz) 1.04 · 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
Weldability
Formability (cold)
Mold Shrinkage
Mold Temperature (typ.)
Sustainability
Primary-production footprint per kilogram.
Embodied Water
Same in both: Embodied Energy (primary production) 105 MJ/kg45,142 BTU/lb · Embodied Carbon (primary production) 3.6 kg CO₂/kg · Typical Recycled Content 5%
Common Calculations
Ratios derived from the values above.
Thermal Diffusivity
Same in both: Specific Strength (UTS / density) 10 kN·m/kg · 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 | GB/T 10801.1 Type III | JIS A9511 EPS |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$ Standard | $$ Standard |
| Min. machined wall | — | — |
| Best machined surface | — | — |
GB/T 10801.1 Type III vs JIS A9511 EPS — frequently asked
Is GB/T 10801.1 Type III stronger than JIS A9511 EPS?
Yes. GB/T 10801.1 Type III 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, GB/T 10801.1 Type III 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, GB/T 10801.1 Type III or JIS A9511 EPS?
JIS A9511 EPS, by a small margin. Both rate excellent for machinability — 90/100 against 85/100 for GB/T 10801.1 Type III; for welding the order is JIS A9511 EPS first (poor, 30/100) then GB/T 10801.1 Type III (poor, 25/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in GB/T 10801.1 Type III 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.