SAN Foam Core M60 vs SAN Foam Core M80
Composite · SAN Foam Core grade comparison
SAN Foam Core M60 and SAN Foam Core M80 are two grades of the same composite grade, SAN Foam Core: M60 (60 kg/m³ marine SAN foam) versus M80 (80 kg/m³ marine SAN foam). The chemistry is identical, so every difference below comes from the condition. SAN Foam Core M80 is the stronger of the two: tensile strength 2 MPa (0.247 ksi) against 1 MPa (0.167 ksi) for SAN Foam Core M60, about 48% more. SAN Foam Core M60 is lighter (0.06 g/cm³ vs 0.08 g/cm³ for SAN Foam Core M80) and SAN Foam Core M80 is stiffer (0.07 GPa vs 0.05 GPa).
SAN Foam Core M60Choose it when weight is the constraint.
SAN Foam Core M80Choose it when strength drives the design.
SAN Foam Core M60 vs SAN Foam Core M80: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all composite 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 composite 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.
SAN Foam Core M60SAN Foam Core M80
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Tensile Strength (Ultimate)
Compressive Strength
Compressive Modulus
Shear Strength
Same in both: Poisson's Ratio 0.3
Physical
Density and transition temperatures.
Density
Same in both: Glass Transition (Tg) 105°C221 °F · Water Absorption (24 h) 0.2%
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Same in both: Specific Heat Capacity 1,400 J/kg·K0.33 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 60 µm/m·K33.3 µin/in·°F · Max Service Temperature (continuous) 70°C158 °F · Min Service Temperature -60°C-76 °F · Limiting Oxygen Index 19% · Max Service Temperature (short-term) 90°C194 °F
Electrical
Conductivity and insulation.
Same in both: Dielectric Constant (1 MHz) 1.08 · Volume Resistivity 1×10¹⁶ Ω·cm
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: UV / Weathering Resistance 25 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 105 MJ/kg45,142 BTU/lb · Embodied Carbon (primary production) 4.5 kg CO₂/kg · Typical Recycled Content 0%
Strength versus weight
Yield strength against density for every composite grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
SAN Foam Core M60 vs SAN Foam Core M80 — frequently asked
Is SAN Foam Core M80 stronger than SAN Foam Core M60?
Yes. SAN Foam Core M80 has a typical tensile strength of 2 MPa (0.247 ksi) against 1 MPa (0.167 ksi) for SAN Foam Core M60 — about 48% more.
Which grade does FabDigit quote by default, M60 or M80?
M80 is the default SAN Foam Core condition in the FabDigit quote flow. 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 SAN Foam Core M60 over SAN Foam Core M80?
Pick SAN Foam Core M60 when weight is the constraint. Pick SAN Foam Core M80 when strength drives the design.
Ready to make it?
Upload a CAD file and FabDigit prices the part in SAN Foam Core M60 and SAN Foam Core M80 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.