EAA vs EMAA
Polymer · grade comparison
EAA and EMAA are both polymer grades. EMAA is the stronger of the two: tensile strength 30 MPa (4.35 ksi) against 17 MPa (2.47 ksi) for EAA, about 76% more. In exchange, EAA is the more ductile: elongation 550% versus 400% for EMAA, and EMAA is harder (55 Shore D vs 48 Shore D). EMAA is stiffer (0.2 GPa vs 0.13 GPa) and EAA conducts heat better (0.3 W/m·K vs 0.25 W/m·K). On the shop floor, EAA sits in a lower cost tier (standard, $$) than EMAA (premium, $$$).
EAAChoose it when the part is bent, formed or impact-loaded, or when cost is the deciding factor.
EMAAChoose it when strength drives the design.
EAA vs EMAA: 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 Modulus
Izod Impact, Notched
Hardness, Shore A
Hardness, Shore D
Tear Strength
Poisson's Ratio
Same in both: Yield Strength (0.2% offset) 10 MPa1.5 ksi
Physical
Density and transition temperatures.
Glass Transition (Tg)
Water Absorption (24 h)
Water Absorption (Saturation)
Same in both: Density 0.94 g/cm³0.03 lb/in³ · Melting Temperature (Tm) 95°C203 °F · Refractive Index 1.51 · Light Transmission 88%
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Max Service Temperature (short-term)
Same in both: Thermal Expansion (CTE, 20–100 °C) 180 µm/m·K100 µin/in·°F · Max Service Temperature (continuous) 60°C140 °F · Min Service Temperature -60°C-76 °F · Heat Deflection Temp. @ 0.45 MPa 48°C118 °F · Vicat Softening Point (B50) 65°C149 °F · Limiting Oxygen Index 18%
Electrical
Conductivity and insulation.
Electrical Resistivity
Dielectric Strength
Dissipation Factor (1 MHz)
Volume Resistivity
Same in both: Dielectric Constant (1 MHz) 2.8
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
UV / Weathering Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Polishability
Melt Flow Rate
Processing Melt Temperature (typ.)
Same in both: Weldability 92 / 100 · Formability (cold) 85 / 100 · Mold Shrinkage 2% · Mold Temperature (typ.) 30°C86 °F
Sustainability
Primary-production footprint per kilogram.
Embodied Water
Same in both: Embodied Energy (primary production) 82 MJ/kg35,254 BTU/lb · Embodied Carbon (primary production) 2.6 kg CO₂/kg · Typical Recycled Content 0%
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Same in both: Thermal Diffusivity 0.1 mm²/s · 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.
Manufacturing and finishing
| Capability | EAA | EMAA |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$ Standard | $$$ Premium |
| Min. machined wall | — | — |
| Best machined surface | — | — |
EAA vs EMAA — frequently asked
Is EMAA stronger than EAA?
Yes. EMAA has a typical tensile strength of 30 MPa (4.35 ksi) against 17 MPa (2.47 ksi) for EAA — about 76% more.
Which is cheaper, EAA or EMAA?
EAA is the lower-cost material: it sits in the standard tier ($$) while EMAA is premium ($$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
Which is easier to machine, EAA or EMAA?
EAA. Its machinability rates fair (35/100) against poor (30/100) for EMAA.
Ready to make it?
Upload a CAD file and FabDigit prices the part in EAA and EMAA 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.