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GB/T 10801.1 Type II vs XPS 300

Polymer · grade comparison

GB/T 10801.1 Type II and XPS 300 are both polymer grades. XPS 300 is the stronger of the two: tensile strength 0.45 MPa (0.0653 ksi) against 0.25 MPa (0.0363 ksi) for GB/T 10801.1 Type II, about 80% more. In exchange, GB/T 10801.1 Type II is the more ductile: elongation 6% versus 3% for XPS 300. GB/T 10801.1 Type II 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 II welds better (25 vs 15 out of 100).

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

XPS 300Choose it when strength drives the design.

GB/T 10801.1 Type II vs XPS 300: properties

GB/T 10801.1 Type IIXPS 300

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

0 GPa6.53×10⁻⁴ Msi
0.02 GPa0 Msi

Poisson's Ratio

0.1
0.3

Tensile Strength (Ultimate)

0.25 MPa0.04 ksi
0.45 MPa0.07 ksi

Elongation at Break

6%
3%

Compressive Strength

0.12 MPa0.02 ksi
0.32 MPa0.05 ksi

Compressive Modulus

0.01 GPa7.25×10⁻⁴ Msi
0.01 GPa0 Msi

Flexural Strength

0.28 MPa0.04 ksi
0.55 MPa0.08 ksi

Shear Strength

0.15 MPa0.02 ksi
0.25 MPa0.04 ksi

Yield Strength (0.2% offset)

—
0.3 MPa0.04 ksi

Flexural Modulus

—
0.01 GPa0 Msi

Physical

Density and transition temperatures.

Density

0.02 g/cm³7.59×10⁻⁴ lb/in³
0.04 g/cm³0 lb/in³

Water Absorption (Saturation)

3%
0.5%

Water Absorption (24 h)

—
0.2%

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

Vicat Softening Point (B50)

96°C205 °F
95°C203 °F

Limiting Oxygen Index

19%
25%

Same in both: Max Service Temperature (continuous) 75°C167 °F · Min Service Temperature -50°C-58 °F · Max Service Temperature (short-term) 85°C185 °F

Electrical

Conductivity and insulation.

Dielectric Constant (1 MHz)

1.03
1.07

Volume Resistivity

1×10¹⁵ Ω·cm
1×10¹⁶ Ω·cm

Electrical Resistivity

—
1×10¹⁴ Ω·m3.94×10²¹ µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

75 / 100
85 / 100

UV / Weathering Resistance

20 / 100
15 / 100

Manufacturability

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

Machinability

90 / 100
92 / 100

Weldability

25 / 100
15 / 100

Formability (cold)

40 / 100
10 / 100

Mold Shrinkage

0.45%
—

Processing Melt Temperature (typ.)

110°C230 °F
190°C374 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

3.4 kg CO₂/kg
3.2 kg CO₂/kg

Embodied Water

180 L/kg21.6 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)

12 kN·m/kg
13 kN·m/kg

Specific Stiffness (E / density)

0.2 MN·m/kg
0.4 MN·m/kg

Thermal Diffusivity

1.3 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 IIXPS 300
Default condition——
Relative cost$$ Standard$$ Standard
Min. machined wall——
Best machined surface——

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

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

Yes. XPS 300 has a typical tensile strength of 0.45 MPa (0.0653 ksi) against 0.25 MPa (0.0363 ksi) for GB/T 10801.1 Type II — about 80% more.

Which is cheaper, GB/T 10801.1 Type II 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 welds better, GB/T 10801.1 Type II or XPS 300?

GB/T 10801.1 Type II. Its weldability rates poor (25/100) against poor (15/100) for XPS 300.

Ready to make it?

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