PA12 EOS Alumide vs PA12 Sinterit PA12 Smooth
Polymer · PA12 grade comparison
EOS Alumide and Sinterit PA12 Smooth are two grades of the same polymer grade, PA12: EOS Alumide versus Sinterit PA12 Smooth. The chemistry is identical, so every difference below comes from the condition. EOS Alumide is the stronger of the two: tensile strength 48 MPa (6.96 ksi) against 38.44 MPa (5.58 ksi) for Sinterit PA12 Smooth, about 25% more. In exchange, Sinterit PA12 Smooth is the more ductile: elongation 4.55% versus 4% for EOS Alumide. Sinterit PA12 Smooth is lighter (0.95 g/cm³ vs 1.36 g/cm³ for EOS Alumide) and EOS Alumide is stiffer (3.8 GPa vs 1.572 GPa).
EOS AlumideChoose it when strength drives the design.
Sinterit PA12 SmoothChoose it when the part is bent, formed or impact-loaded, or when weight is the constraint.
EOS Alumide vs Sinterit PA12 Smooth: 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.
EOS AlumideSinterit PA12 Smooth
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Tensile Strength (Ultimate)
Elongation at Break
Flexural Modulus
Flexural Strength
Charpy Impact, Unnotched (ISO 179)
Charpy Impact, Notched (ISO 179)
Same in both: Hardness, Shore D 76 Shore D
Physical
Density and transition temperatures.
Melting Temperature (Tm)
Density
Water Absorption (24 h)
Thermal
How each material carries heat and how hot it can run.
Heat Deflection Temp. @ 1.8 MPa
Heat Deflection Temp. @ 0.45 MPa
Vicat Softening Point (B50)
Electrical
Conductivity and insulation.
Dielectric Strength
Surface Resistivity
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Powder Particle Size (D50)
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.
EOS Alumide vs Sinterit PA12 Smooth — frequently asked
Is EOS Alumide stronger than Sinterit PA12 Smooth?
Yes. EOS Alumide has a typical tensile strength of 48 MPa (6.96 ksi) against 38.44 MPa (5.58 ksi) for Sinterit PA12 Smooth — about 25% more.
Which grade does FabDigit quote by default, EOS Alumide or Sinterit PA12 Smooth?
Specify the condition in the material field or the drawing note; FabDigit prices the quote for the state you call out.
When should I choose EOS Alumide over Sinterit PA12 Smooth?
Pick EOS Alumide when strength drives the design. Pick Sinterit PA12 Smooth when the part is bent, formed or impact-loaded, or when weight is the constraint.
Ready to make it?
Upload a CAD file and FabDigit prices the part in EOS Alumide and Sinterit PA12 Smooth 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.