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EPS 150 vs GB/T 10801.1 Type I

Polymer · grade comparison

EPS 150 and GB/T 10801.1 Type I are both polymer grades. EPS 150 is the stronger of the two: tensile strength 0.3 MPa (0.0435 ksi) against 0.13 MPa (0.0189 ksi) for GB/T 10801.1 Type I, about 131% more. In exchange, GB/T 10801.1 Type I is the more ductile: elongation 3% versus 2% for EPS 150. GB/T 10801.1 Type I is lighter (0.02 g/cm³ vs 0.03 g/cm³ for EPS 150) and EPS 150 is stiffer (0.01 GPa vs 0 GPa).

EPS 150Choose it when strength drives the design, or when the part sees heat.

GB/T 10801.1 Type IChoose it when the part is bent, formed or impact-loaded, or when weight is the constraint.

EPS 150 vs GB/T 10801.1 Type I: properties

EPS 150GB/T 10801.1 Type I

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

0.01 GPa0 Msi
0 GPa3.63×10⁻⁴ Msi

Shear Modulus

0 GPa5.8×10⁻⁴ Msi
0 GPa1.6×10⁻⁴ Msi

Tensile Strength (Ultimate)

0.3 MPa0.04 ksi
0.13 MPa0.02 ksi

Yield Strength (0.2% offset)

0.15 MPa0.02 ksi
—

Elongation at Break

2%
3%

Compressive Strength

0.16 MPa0.02 ksi
0.08 MPa0.01 ksi

Compressive Modulus

0.01 GPa0 Msi
0 GPa3.19×10⁻⁴ Msi

Flexural Strength

0.28 MPa0.04 ksi
0.18 MPa0.03 ksi

Flexural Modulus

0.01 GPa0 Msi
0 GPa3.63×10⁻⁴ Msi

Shear Strength

0.14 MPa0.02 ksi
0.07 MPa0.01 ksi

Compression Set (22 h, 70 °C)

8%
—

Same in both: Poisson's Ratio 0.1

Physical

Density and transition temperatures.

Density

0.03 g/cm³0 lb/in³
0.02 g/cm³6.5×10⁻⁴ lb/in³

Water Absorption (24 h)

1%
2%

Water Absorption (Saturation)

3.5%
4.5%

Same in both: Glass Transition (Tg) 100°C212 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

0.03 W/m·K0.02 BTU/hr·ft·°F
0.04 W/m·K0.02 BTU/hr·ft·°F

Max Service Temperature (continuous)

80°C176 °F
70°C158 °F

Vicat Softening Point (B50)

96°C205 °F
95°C203 °F

Limiting Oxygen Index

25%
19%

Max Service Temperature (short-term)

100°C212 °F
80°C176 °F

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 · Min Service Temperature -50°C-58 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1×10¹³ Ω·m3.94×10²⁰ µΩ·in
1×10¹⁴ Ω·m3.94×10²¹ µΩ·in

Volume Resistivity

1×10¹⁵ Ω·cm
1×10¹⁶ Ω·cm

Dielectric Strength

—
2.2 kV/mm55.9 V/mil

Surface Resistivity

—
1×10¹⁵ Ω

Same in both: Dielectric Constant (1 MHz) 1.03 · Dissipation Factor (1 MHz) 3×10⁻⁴

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

58 / 100
80 / 100

UV / Weathering Resistance

12 / 100
15 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

88 / 100
85 / 100

Weldability

40 / 100
45 / 100

Mold Shrinkage

0.4%
0.6%

Processing Melt Temperature (typ.)

115°C239 °F
112°C234 °F

Polishability

—
5 / 100

Same in both: Formability (cold) 25 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

95 MJ/kg40,843 BTU/lb
100 MJ/kg42,992 BTU/lb

Embodied Carbon (primary production)

3.3 kg CO₂/kg
3.5 kg CO₂/kg

Embodied Water

190 L/kg22.8 gal/lb
160 L/kg19.2 gal/lb

Same in both: Typical Recycled Content 5%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

11 kN·m/kg
7 kN·m/kg

Specific Stiffness (E / density)

0.3 MN·m/kg
0.1 MN·m/kg

Thermal Diffusivity

0.8 mm²/s
1.6 mm²/s

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.

0.1110100123Density (g/cm³)Yield strength (MPa) — log scaleEPS 150

Manufacturing and finishing

CapabilityEPS 150GB/T 10801.1 Type I
Default condition——
Relative cost$$ Standard$$ Standard
Min. machined wall——
Best machined surface——

EPS 150 vs GB/T 10801.1 Type I — frequently asked

Is EPS 150 stronger than GB/T 10801.1 Type I?

Yes. EPS 150 has a typical tensile strength of 0.3 MPa (0.0435 ksi) against 0.13 MPa (0.0189 ksi) for GB/T 10801.1 Type I — about 131% more.

Which is cheaper, EPS 150 or GB/T 10801.1 Type I?

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, EPS 150 or GB/T 10801.1 Type I?

GB/T 10801.1 Type I. Its weldability rates fair (45/100) against fair (40/100) for EPS 150.

Ready to make it?

Upload a CAD file and FabDigit prices the part in EPS 150 and GB/T 10801.1 Type I 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.