FabDigitFabDigit

GB/T 10801.1 Type I vs XPS 300

Polymer · grade comparison

GB/T 10801.1 Type I and XPS 300 are both polymer grades. XPS 300 is the stronger of the two: tensile strength 0.45 MPa (0.0653 ksi) against 0.13 MPa (0.0189 ksi) for GB/T 10801.1 Type I, about 3.5 times as much. GB/T 10801.1 Type I is lighter (0.02 g/cm³ vs 0.04 g/cm³ for XPS 300) and XPS 300 is stiffer (0.02 GPa vs 0 GPa). On the shop floor, GB/T 10801.1 Type I welds better (fair vs poor) and GB/T 10801.1 Type I forms better (poor vs not recommended).

GB/T 10801.1 Type IChoose it when weight is the constraint, or when it will be welded.

XPS 300Choose it when strength drives the design.

GB/T 10801.1 Type I vs XPS 300: properties

GB/T 10801.1 Type IXPS 300

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

0 GPa3.63×10⁻⁴ Msi
0.02 GPa0 Msi

Shear Modulus

0 GPa1.6×10⁻⁴ Msi
—

Poisson's Ratio

0.1
0.3

Tensile Strength (Ultimate)

0.13 MPa0.02 ksi
0.45 MPa0.07 ksi

Compressive Strength

0.08 MPa0.01 ksi
0.32 MPa0.05 ksi

Compressive Modulus

0 GPa3.19×10⁻⁴ Msi
0.01 GPa0 Msi

Flexural Strength

0.18 MPa0.03 ksi
0.55 MPa0.08 ksi

Flexural Modulus

0 GPa3.63×10⁻⁴ Msi
0.01 GPa0 Msi

Shear Strength

0.07 MPa0.01 ksi
0.25 MPa0.04 ksi

Yield Strength (0.2% offset)

—
0.3 MPa0.04 ksi

Same in both: Elongation at Break 3%

Physical

Density and transition temperatures.

Density

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

Water Absorption (24 h)

2%
0.2%

Water Absorption (Saturation)

4.5%
0.5%

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

Thermal

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

Thermal Conductivity

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

Specific Heat Capacity

1,400 J/kg·K0.33 BTU/lb·°F
1,450 J/kg·K0.35 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

65 µm/m·K36.1 µin/in·°F
70 µm/m·K38.9 µin/in·°F

Max Service Temperature (continuous)

70°C158 °F
75°C167 °F

Limiting Oxygen Index

19%
25%

Max Service Temperature (short-term)

80°C176 °F
85°C185 °F

Same in both: Min Service Temperature -50°C-58 °F · Vicat Softening Point (B50) 95°C203 °F

Electrical

Conductivity and insulation.

Dielectric Strength

2.2 kV/mm55.9 V/mil
—

Dielectric Constant (1 MHz)

1.03
1.07

Dissipation Factor (1 MHz)

3×10⁻⁴
—

Surface Resistivity

1×10¹⁵ Ω
—

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).

Corrosion Resistance

80 / 100
85 / 100

Same in both: UV / Weathering Resistance 15 / 100

Manufacturability

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

Machinability

85 / 100
92 / 100

Weldability

45 / 100
15 / 100

Formability (cold)

25 / 100
10 / 100

Polishability

5 / 100
—

Mold Shrinkage

0.6%
—

Processing Melt Temperature (typ.)

112°C234 °F
190°C374 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

3.5 kg CO₂/kg
3.2 kg CO₂/kg

Embodied Water

160 L/kg19.2 gal/lb
130 L/kg15.6 gal/lb

Typical Recycled Content

5%
15%

Same in both: Embodied Energy (primary production) 100 MJ/kg42,992 BTU/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

7 kN·m/kg
13 kN·m/kg

Specific Stiffness (E / density)

0.1 MN·m/kg
0.4 MN·m/kg

Thermal Diffusivity

1.6 mm²/s
0.7 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 scaleXPS 300

Manufacturing and finishing

CapabilityGB/T 10801.1 Type IXPS 300
Default condition——
Relative cost$$ Standard$$ Standard
Min. machined wall——
Best machined surface——

GB/T 10801.1 Type I vs XPS 300 — frequently asked

Is XPS 300 stronger than GB/T 10801.1 Type I?

Yes. XPS 300 has a typical tensile strength of 0.45 MPa (0.0653 ksi) against 0.13 MPa (0.0189 ksi) for GB/T 10801.1 Type I — about 3.5 times as much.

Which is cheaper, GB/T 10801.1 Type I or XPS 300?

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 XPS 300?

XPS 300, by a small margin. Both rate excellent for machinability — 92/100 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 XPS 300 (poor, 15/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in GB/T 10801.1 Type I and XPS 300 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.