A359/SiC/20p vs Aluminum Composite Panel (ACM)
Composite · grade comparison
A359/SiC/20p and Aluminum Composite Panel (ACM) are both composite grades. A359/SiC/20p is the stronger of the two: yield strength 310 MPa (45 ksi) against 100 MPa (14.5 ksi) for Aluminum Composite Panel (ACM), about 3.1 times as much; tensile strength follows at 340 MPa (49.3 ksi) vs 130 MPa (18.9 ksi). In exchange, Aluminum Composite Panel (ACM) is the more ductile: elongation 5% versus 0.5% for A359/SiC/20p. Aluminum Composite Panel (ACM) is lighter (1.35 g/cm³ vs 2.77 g/cm³ for A359/SiC/20p) and A359/SiC/20p is stiffer (98.6 GPa vs 70 GPa). On the shop floor, Aluminum Composite Panel (ACM) machines more easily (very good vs not recommended) and Aluminum Composite Panel (ACM) sits in a lower cost tier (standard, $$) than A359/SiC/20p (high, $$$$).
A359/SiC/20pChoose it when strength drives the design, or when the part sees heat.
Aluminum Composite Panel (ACM)Choose it when the part is bent, formed or impact-loaded, or when weight is the constraint.
A359/SiC/20p vs Aluminum Composite Panel (ACM): 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.
A359/SiC/20pAluminum Composite Panel (ACM)
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Bulk Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Compressive Strength
Compressive Modulus
Flexural Strength
Flexural Modulus
Shear Strength
Fracture Toughness (K_IC)
Physical
Density and transition temperatures.
Density
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Min Service Temperature
Max Service Temperature (short-term)
Electrical
Conductivity and insulation.
Electrical Resistivity
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
Weldability
Formability (cold)
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Shock Resistance Index
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.
Manufacturing and finishing
| Capability | A359/SiC/20p | Aluminum Composite Panel (ACM) |
|---|---|---|
| Sheet metal | — | Yes |
| Default condition | — | PE Core |
| Relative cost | $$$$ High | $$ Standard |
| Min. machined wall | — | — |
| Best machined surface | — | — |
| Painting | — | Yes |
A359/SiC/20p vs Aluminum Composite Panel (ACM) — frequently asked
Is A359/SiC/20p stronger than Aluminum Composite Panel (ACM)?
Yes. A359/SiC/20p has a typical yield strength of 310 MPa (45 ksi) against 100 MPa (14.5 ksi) for Aluminum Composite Panel (ACM) — about 3.1 times as much. Tensile strength is 340 MPa (49.3 ksi) vs 130 MPa (18.9 ksi).
Which is cheaper, A359/SiC/20p or Aluminum Composite Panel (ACM)?
Aluminum Composite Panel (ACM) is the lower-cost material: it sits in the standard tier ($$) while A359/SiC/20p is high ($$$$). 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, A359/SiC/20p or Aluminum Composite Panel (ACM)?
Aluminum Composite Panel (ACM). Its machinability rates very good (80/100) against not recommended (12/100) for A359/SiC/20p.
Ready to make it?
Upload a CAD file and FabDigit prices the part in A359/SiC/20p and Aluminum Composite Panel (ACM) 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.