GB/T 10801.1 Type I vs JIS A9511 EPS
Polymer · grade comparison
GB/T 10801.1 Type I and JIS A9511 EPS are both polymer grades. JIS A9511 EPS is the stronger of the two: tensile strength 0.2 MPa (0.029 ksi) against 0.13 MPa (0.0189 ksi) for GB/T 10801.1 Type I, about 54% more. In exchange, GB/T 10801.1 Type I is the more ductile: elongation 3% versus 1.5% for JIS A9511 EPS. GB/T 10801.1 Type I is lighter (0.02 g/cm³ vs 0.02 g/cm³ for JIS A9511 EPS) and JIS A9511 EPS is stiffer (0.01 GPa vs 0 GPa). On the shop floor, GB/T 10801.1 Type I welds better (fair vs poor).
GB/T 10801.1 Type IChoose it when the part is bent, formed or impact-loaded, or when weight is the constraint.
JIS A9511 EPSChoose it when strength drives the design.
GB/T 10801.1 Type I 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 IJIS A9511 EPS
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
Max Service Temperature (continuous)
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
Electrical
Conductivity and insulation.
Dielectric Strength
Dielectric Constant (1 MHz)
Dissipation Factor (1 MHz)
Surface Resistivity
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).
Same in both: Corrosion Resistance 80 / 100 · UV / Weathering Resistance 15 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Polishability
Mold Shrinkage
Processing Melt Temperature (typ.)
Mold Temperature (typ.)
Same in both: Formability (cold) 25 / 100
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)
Specific Stiffness (E / density)
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 | GB/T 10801.1 Type I | JIS A9511 EPS |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$ Standard | $$ Standard |
| Min. machined wall | — | — |
| Best machined surface | — | — |
GB/T 10801.1 Type I vs JIS A9511 EPS — frequently asked
Is JIS A9511 EPS stronger than GB/T 10801.1 Type I?
Yes. JIS A9511 EPS has a typical tensile strength of 0.2 MPa (0.029 ksi) against 0.13 MPa (0.0189 ksi) for GB/T 10801.1 Type I — about 54% more.
Which is cheaper, GB/T 10801.1 Type I 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 I 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 I; for welding the order is GB/T 10801.1 Type I first (fair, 45/100) then JIS A9511 EPS (poor, 30/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in GB/T 10801.1 Type I 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.