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EPS 150 vs GB/T 10801.1 Type IV

Polymer · grade comparison

EPS 150 and GB/T 10801.1 Type IV 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 0.3 MPa (0.0435 ksi) for EPS 150, about 40% more. EPS 150 is lighter (0.03 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). On the shop floor, EPS 150 welds better (fair vs poor).

EPS 150Choose it when weight is the constraint, or when it will be welded.

GB/T 10801.1 Type IVChoose it when strength drives the design.

EPS 150 vs GB/T 10801.1 Type IV: properties

EPS 150GB/T 10801.1 Type IV

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

0.01 GPa0 Msi
0.01 GPa0 Msi

Shear Modulus

0 GPa5.8×10⁻⁴ Msi
0 GPa6.53×10⁻⁴ Msi

Poisson's Ratio

0.1
0.12

Tensile Strength (Ultimate)

0.3 MPa0.04 ksi
0.42 MPa0.06 ksi

Yield Strength (0.2% offset)

0.15 MPa0.02 ksi
—

Compressive Strength

0.16 MPa0.02 ksi
0.22 MPa0.03 ksi

Compressive Modulus

0.01 GPa0 Msi
0.01 GPa0 Msi

Flexural Strength

0.28 MPa0.04 ksi
0.5 MPa0.07 ksi

Flexural Modulus

0.01 GPa0 Msi
0.01 GPa0 Msi

Shear Strength

0.14 MPa0.02 ksi
0.25 MPa0.04 ksi

Compression Set (22 h, 70 °C)

8%
5%

Same in both: Elongation at Break 2%

Physical

Density and transition temperatures.

Density

0.03 g/cm³0 lb/in³
0.04 g/cm³0 lb/in³

Water Absorption (Saturation)

3.5%
4%

Same in both: Glass Transition (Tg) 100°C212 °F · Water Absorption (24 h) 1%

Thermal

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

Max Service Temperature (continuous)

80°C176 °F
75°C167 °F

Vicat Softening Point (B50)

96°C205 °F
—

Limiting Oxygen Index

25%
30%

Max Service Temperature (short-term)

100°C212 °F
95°C203 °F

Same in both: Thermal Conductivity 0.03 W/m·K0.02 BTU/hr·ft·°F · 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

Dielectric Constant (1 MHz)

1.03
1.04

Volume Resistivity

1×10¹⁵ Ω·cm
1×10¹⁶ Ω·cm

Same in both: 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
18 / 100

Manufacturability

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

Machinability

88 / 100
92 / 100

Weldability

40 / 100
25 / 100

Formability (cold)

25 / 100
20 / 100

Mold Shrinkage

0.4%
0.5%

Processing Melt Temperature (typ.)

115°C239 °F
—

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

95 MJ/kg40,843 BTU/lb
105 MJ/kg45,142 BTU/lb

Embodied Carbon (primary production)

3.3 kg CO₂/kg
3.5 kg CO₂/kg

Embodied Water

190 L/kg22.8 gal/lb
200 L/kg24 gal/lb

Same in both: Typical Recycled Content 5%

Common Calculations

Ratios derived from the values above.

Thermal Diffusivity

0.8 mm²/s
0.6 mm²/s

Same in both: Specific Strength (UTS / density) 11 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.

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

Manufacturing and finishing

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

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

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

Yes. GB/T 10801.1 Type IV has a typical tensile strength of 0.42 MPa (0.0609 ksi) against 0.3 MPa (0.0435 ksi) for EPS 150 — about 40% more.

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

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 IV?

EPS 150. Its weldability rates fair (40/100) 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 EPS 150 and GB/T 10801.1 Type IV 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.