XPS 700 B1 vs XPS 700 N
Polymer · XPS 700 grade comparison
XPS 700 B1 and XPS 700 N are two grades of the same polymer grade, XPS 700: B1 (B1 flame-retardant board) versus N (normalized). The chemistry is identical, so every difference below comes from the condition. XPS 700 B1 is the stronger of the two: tensile strength 0.58 MPa (0.0841 ksi) against 0.5 MPa (0.0725 ksi) for XPS 700 N, about 16% more. XPS 700 B1 is the more ductile: elongation 2.8% versus 2.5% for XPS 700 N. XPS 700 B1 is stiffer (0.03 GPa vs 0.03 GPa).
XPS 700 B1Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.
XPS 700 B1 vs XPS 700 N: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all polymer grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all polymer grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Tensile Strength (Ultimate)
Elongation at Break
Flexural Strength
Flexural Modulus
Shear Strength
Same in both: Poisson's Ratio 0.2 · Compressive Strength 0.7 MPa0.1 ksi · Compressive Modulus 0.03 GPa0 Msi
Physical
Density and transition temperatures.
Water Absorption (Saturation)
Same in both: Density 0.05 g/cm³0 lb/in³ · Glass Transition (Tg) 100°C212 °F · Water Absorption (24 h) 0.2%
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Limiting Oxygen Index
Same in both: Specific Heat Capacity 1,400 J/kg·K0.33 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 70 µm/m·K38.9 µin/in·°F · Max Service Temperature (continuous) 75°C167 °F · Min Service Temperature -50°C-58 °F · Vicat Softening Point (B50) 98°C208 °F · Max Service Temperature (short-term) 85°C185 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Resistivity 1×10¹⁴ Ω·m3.94×10²¹ µΩ·in · Dielectric Constant (1 MHz) 1.08 · Dissipation Factor (1 MHz) 5×10⁻⁴ · Volume Resistivity 1×10¹⁶ Ω·cm
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: UV / Weathering Resistance 15 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Same in both: Weldability 20 / 100 · Formability (cold) 25 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 100 MJ/kg42,992 BTU/lb · Embodied Carbon (primary production) 6.5 kg CO₂/kg · Embodied Water 200 L/kg24 gal/lb · Typical Recycled Content 15%
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.
XPS 700 B1 vs XPS 700 N — frequently asked
Is XPS 700 B1 stronger than XPS 700 N?
Yes. XPS 700 B1 has a typical tensile strength of 0.58 MPa (0.0841 ksi) against 0.5 MPa (0.0725 ksi) for XPS 700 N — about 16% more.
Which grade does FabDigit quote by default, B1 or N?
W is the default XPS 700 condition in the FabDigit quote flow (neither B1 nor N). The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.
When should I choose XPS 700 B1 over XPS 700 N?
Pick XPS 700 B1 when strength drives the design, or when the part is bent, formed or impact-loaded.
Ready to make it?
Upload a CAD file and FabDigit prices the part in XPS 700 B1 and XPS 700 N 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.