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GB/T 10801.1 Type IV vs XPS 300

Polymer · grade comparison

GB/T 10801.1 Type IV and XPS 300 are both polymer grades. XPS 300 is the stronger of the two: tensile strength 0.45 MPa (0.0653 ksi) against 0.42 MPa (0.0609 ksi) for GB/T 10801.1 Type IV, about 7% more. XPS 300 is the more ductile: elongation 3% versus 2% for GB/T 10801.1 Type IV. XPS 300 is lighter (0.04 g/cm³ vs 0.04 g/cm³ for GB/T 10801.1 Type IV) and XPS 300 is stiffer (0.02 GPa vs 0.01 GPa). On the shop floor, GB/T 10801.1 Type IV welds better (25 vs 15 out of 100).

GB/T 10801.1 Type IVChoose it when it will be welded.

XPS 300Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

GB/T 10801.1 Type IV vs XPS 300: properties

GB/T 10801.1 Type IVXPS 300

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

0.01 GPa0 Msi
0.02 GPa0 Msi

Shear Modulus

0 GPa6.53×10⁻⁴ Msi
—

Poisson's Ratio

0.12
0.3

Tensile Strength (Ultimate)

0.42 MPa0.06 ksi
0.45 MPa0.07 ksi

Elongation at Break

2%
3%

Compressive Strength

0.22 MPa0.03 ksi
0.32 MPa0.05 ksi

Compressive Modulus

0.01 GPa0 Msi
0.01 GPa0 Msi

Flexural Strength

0.5 MPa0.07 ksi
0.55 MPa0.08 ksi

Flexural Modulus

0.01 GPa0 Msi
0.01 GPa0 Msi

Compression Set (22 h, 70 °C)

5%
—

Yield Strength (0.2% offset)

—
0.3 MPa0.04 ksi

Same in both: Shear Strength 0.25 MPa0.04 ksi

Physical

Density and transition temperatures.

Density

0.04 g/cm³0 lb/in³
0.04 g/cm³0 lb/in³

Water Absorption (24 h)

1%
0.2%

Water Absorption (Saturation)

4%
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

0.03 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

Limiting Oxygen Index

30%
25%

Max Service Temperature (short-term)

95°C203 °F
85°C185 °F

Vicat Softening Point (B50)

—
95°C203 °F

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

Electrical

Conductivity and insulation.

Dielectric Constant (1 MHz)

1.04
1.07

Dissipation Factor (1 MHz)

3×10⁻⁴
—

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

UV / Weathering Resistance

18 / 100
15 / 100

Manufacturability

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

Weldability

25 / 100
15 / 100

Formability (cold)

20 / 100
10 / 100

Mold Shrinkage

0.5%
—

Processing Melt Temperature (typ.)

—
190°C374 °F

Same in both: Machinability 92 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

105 MJ/kg45,142 BTU/lb
100 MJ/kg42,992 BTU/lb

Embodied Carbon (primary production)

3.5 kg CO₂/kg
3.2 kg CO₂/kg

Embodied Water

200 L/kg24 gal/lb
130 L/kg15.6 gal/lb

Typical Recycled Content

5%
15%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

11 kN·m/kg
13 kN·m/kg

Specific Stiffness (E / density)

0.3 MN·m/kg
0.4 MN·m/kg

Thermal Diffusivity

0.6 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 IVXPS 300
Default condition——
Relative cost$$ Standard$$ Standard
Min. machined wall——
Best machined surface——

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

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

Yes. XPS 300 has a typical tensile strength of 0.45 MPa (0.0653 ksi) against 0.42 MPa (0.0609 ksi) for GB/T 10801.1 Type IV — about 7% more.

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

GB/T 10801.1 Type IV. 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 IV 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.