GB/T 10801.1 Type IV vs JIS A9511 EPS
Polymer · grade comparison
GB/T 10801.1 Type IV and JIS A9511 EPS are both polymer grades. GB/T 10801.1 Type IV is the stronger of the two: tensile strength 0.42 MPa (0.0609 ksi) against 0.2 MPa (0.029 ksi) for JIS A9511 EPS, about 110% more. GB/T 10801.1 Type IV is the more ductile: elongation 2% versus 1.5% for JIS A9511 EPS. JIS A9511 EPS is lighter (0.02 g/cm³ vs 0.04 g/cm³ for GB/T 10801.1 Type IV) and GB/T 10801.1 Type IV is stiffer (0.01 GPa vs 0.01 GPa).
GB/T 10801.1 Type IVChoose 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 IV 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 IVJIS A9511 EPS
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Elongation at Break
Compressive Strength
Compressive Modulus
Flexural Strength
Flexural Modulus
Shear Strength
Compression Set (22 h, 70 °C)
Yield Strength (0.2% offset)
Physical
Density and transition temperatures.
Density
Water Absorption (24 h)
Same in both: Glass Transition (Tg) 100°C212 °F · Water Absorption (Saturation) 4%
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Min Service Temperature
Limiting Oxygen Index
Max Service Temperature (short-term)
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
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
Same in both: Corrosion Resistance 80 / 100
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 Carbon (primary production)
Embodied Water
Same in both: Embodied Energy (primary production) 105 MJ/kg45,142 BTU/lb · 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 | GB/T 10801.1 Type IV | JIS A9511 EPS |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$ Standard | $$ Standard |
| Min. machined wall | — | — |
| Best machined surface | — | — |
GB/T 10801.1 Type IV vs JIS A9511 EPS — frequently asked
Is GB/T 10801.1 Type IV stronger than JIS A9511 EPS?
Yes. GB/T 10801.1 Type IV has a typical tensile strength of 0.42 MPa (0.0609 ksi) against 0.2 MPa (0.029 ksi) for JIS A9511 EPS — about 110% more.
Which is cheaper, GB/T 10801.1 Type IV 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 welds better, GB/T 10801.1 Type IV or JIS A9511 EPS?
JIS A9511 EPS. Its weldability rates poor (30/100) against poor (25/100) for GB/T 10801.1 Type IV.
Ready to make it?
Upload a CAD file and FabDigit prices the part in GB/T 10801.1 Type IV 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.