Aluminum Composite Panel (ACM) A2 Core
Flame-retardant grade
Non-combustible core (≥ 90 % mineral) for high-rise and code-driven façades; heaviest and least foldable build.
Values for the A2 Core condition
Other Aluminum Composite Panel (ACM) grades and fills
Aluminum Composite Panel (ACM) is listed in 3 conditions; see the grade overview at Aluminum Composite Panel (ACM).
Compare all 3 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
PE CoreDefault PE core: standard polyethylene core, non-fire-rated | Economy build for signage, enclosures and interior panels; combustible core, not for fire-rated façades. | — | — | — | — |
FR core: mineral-filled fire-retardant core (B-s1,d0 / ASTM E84 Class A) | Mineral-filled core for exterior cladding where a Euroclass B or Class A flame-spread rating is required. | — | — | — | — |
A2 CoreThis page A2 core: non-combustible mineral core (A2-s1,d0) | Non-combustible core (≥ 90 % mineral) for high-rise and code-driven façades; heaviest and least foldable build. | — | — | — | — |
What is Aluminum Composite Panel (ACM) A2 Core?
Aluminum Composite Panel (ACM) A2 Core is Aluminum Composite Panel (ACM) in the A2 Core grade — non-combustible core (≥ 90 % mineral) for high-rise and code-driven façades; heaviest and least foldable build. Aluminum Composite Panel (ACM) A2 Core has a yield strength of 100 MPa (14.5 ksi) and a tensile strength of 130 MPa (18.9 ksi) — weaker than 74% of composite grades. Elongation at break is 5% and the elastic modulus is 70 GPa (10.2 Msi). Aluminum Composite Panel (ACM) A2 Core has a density of 1.95 g/cm³ (0.0704 lb/in³), heavier than 75% of composite grades. PE Core is the default condition FabDigit quotes; A2 Core is available on request or by drawing note.
Advantages
- Forms and bends easily — 55/100, better than 100% of composite grades
- Ductile — tolerates forming and impact — 5%, better than 86% of composite grades
- Easy to machine — 80/100, better than 85% of composite grades
Limitations
- Limited service temperature — 80°C (176 °F), worse than 94% of composite grades
Aluminum Composite Panel (ACM) A2 Core properties
Typical room-temperature values for Aluminum Composite Panel (ACM) A2 Core; 4 are specific to this condition. Other listed values are Aluminum Composite Panel (ACM) reference data and may not represent this condition. Bars are the position among composite grades.
Physical1
Aluminum Composite Panel (ACM) A2 Core has a density of 1.95 g/cm³ (0.0704 lb/in³), heavier than 75% of composite grades.
Mechanical4
Aluminum Composite Panel (ACM) A2 Core has a yield strength of 100 MPa (14.5 ksi) and a tensile strength of 130 MPa (18.9 ksi) — weaker than 74% of composite grades. Elongation at break is 5% and the elastic modulus is 70 GPa (10.2 Msi).
Thermal5
Aluminum Composite Panel (ACM) A2 Core is rated for continuous service to 80°C (176 °F). It conducts heat at 0.6 W/m·K (0.347 BTU/hr·ft·°F), better than 57% of composite grades. Thermal expansion is 24 µm/m·K (13.3 µin/in·°F).
Chemical & Environmental2
Corrosion resistance is very good (78/100), worse than 52% of composite grades. UV resistance is excellent.
Manufacturability3
Aluminum Composite Panel (ACM) A2 Core's machinability is very good (80/100, better than 85% of composite grades); weldability not recommended (5/100); formability good (55/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with Aluminum Composite Panel (ACM) A2 Core
Is Aluminum Composite Panel (ACM) easy to machine?
Route, saw or shear with carbide tooling; single-flute or O-flute router bits at high spindle speed give a clean edge without melting the core. Drill with sharp twist drills and back the panel to avoid skin burr. Waterjet also cuts it well; laser is not used (the PE core burns and the paint scorches).
Can Aluminum Composite Panel (ACM) be welded?
Not weldable. Join with rivets, self-clinching hardware, adhesive tapes or structural adhesive, or with the folded-return-and-rivet detail used on cladding cassettes.
Can Aluminum Composite Panel (ACM) be formed, bent or molded?
Fold along a 90–110° V-groove routed through the back skin and core, leaving the face skin as the hinge (minimum inside radius about the skin thickness); do not press-brake the full panel because the core delaminates. Gentle roll-curving of the whole panel is possible down to roughly 300 mm radius.
What surface finishes work on Aluminum Composite Panel (ACM)?
Supplied factory-finished (PVDF or polyester coil coat on the face, mill or primer on the back) with a peel-off protective film; keep the film on through routing. Cut edges expose the core and are usually capped with extrusions, folded returns or edge sealant. Field painting and anodizing are not applicable; printing and vinyl application take well on the coated face.
Aluminum Composite Panel (ACM) A2 Core — frequently asked
What is Aluminum Composite Panel (ACM) A2 Core used for?
Aluminum Composite Panel (ACM) A2 Core is typically used for façade and rainscreen cladding, signage and display panels, equipment and electrical enclosures, solar and telecom tower skins, trade-show and retail fixtures and vehicle and trailer body panels. In short: flat, stiff and light; routes and V-groove folds cleanly; PVDF factory finish; core choice sets the fire rating.
What is the yield strength of Aluminum Composite Panel (ACM) A2 Core?
Aluminum Composite Panel (ACM) A2 Core has a typical yield strength of 100 MPa (14.5 ksi) and a tensile strength of 130 MPa (18.9 ksi) — weaker than 74% of composite grades. Strength varies by condition: see the 3 listed tempers.
Is Aluminum Composite Panel (ACM) A2 Core easy to machine?
Yes — machinability is rated very good (80/100, better than 85% of composite grades). Route, saw or shear with carbide tooling; single-flute or O-flute router bits at high spindle speed give a clean edge without melting the core. Drill with sharp twist drills and back the panel to avoid skin burr. Waterjet also cuts it well; laser is not used (the PE core burns and the paint scorches).
Can Aluminum Composite Panel (ACM) A2 Core be welded?
Not readily — weldability is rated not recommended (5/100). Not weldable. Join with rivets, self-clinching hardware, adhesive tapes or structural adhesive, or with the folded-return-and-rivet detail used on cladding cassettes.
What surface finishes work on Aluminum Composite Panel (ACM) A2 Core?
Supplied factory-finished (PVDF or polyester coil coat on the face, mill or primer on the back) with a peel-off protective film; keep the film on through routing. Cut edges expose the core and are usually capped with extrusions, folded returns or edge sealant. Field painting and anodizing are not applicable; printing and vinyl application take well on the coated face.
Can Aluminum Composite Panel (ACM) A2 Core be formed, bent or molded?
Fold along a 90–110° V-groove routed through the back skin and core, leaving the face skin as the hinge (minimum inside radius about the skin thickness); do not press-brake the full panel because the core delaminates. Gentle roll-curving of the whole panel is possible down to roughly 300 mm radius.
What is the maximum service temperature of Aluminum Composite Panel (ACM) A2 Core?
Aluminum Composite Panel (ACM) A2 Core is rated for continuous use to about 80°C (176 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Can FabDigit make parts in Aluminum Composite Panel (ACM) A2 Core?
Yes — Aluminum Composite Panel (ACM) A2 Core is available for sheet metal; every part is priced by an engineer rather than instantly. Upload a STEP file to get a price and a DFM check.
Sources
- Aluminum composite panel producer datasheets (Alucobond, Dibond, Alpolic, Reynobond) and GB/T 17748 (2024)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.