Aluminum A2024-RAM2 vs Scalmalloy
Aluminum · grade comparison
Aluminum A2024-RAM2 and Scalmalloy are both aluminum grades. A2024-RAM2 is the stronger of the two: yield strength 430 MPa (62.4 ksi) against 285 MPa (41.3 ksi) for Scalmalloy, about 51% more; tensile strength follows at 500 MPa (72.5 ksi) vs 400 MPa (58 ksi). In exchange, Scalmalloy is the more ductile: elongation 14% versus 6% for A2024-RAM2, and A2024-RAM2 is harder (140 HB vs 100 HB). Scalmalloy is lighter (2.67 g/cm³ vs 2.78 g/cm³ for A2024-RAM2) and A2024-RAM2 is stiffer (78 GPa vs 70 GPa). On the shop floor, Scalmalloy welds better (good vs poor) and A2024-RAM2 sits in a lower cost tier (high, $$$$) than Scalmalloy (specialty, $$$$$).
A2024-RAM2Choose it when strength drives the design, or when the part sees heat.
ScalmalloyChoose it when the part is bent, formed or impact-loaded, or when weight is the constraint.
A2024-RAM2 vs Scalmalloy: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all aluminum 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 aluminum 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
Shear Modulus
Bulk Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Poisson's Ratio 0.33
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Same in both: Liquidus Temperature 638°C1,180 °F
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)
Same in both: Latent Heat of Fusion 390 J/g168 BTU/lb · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Brazeability / Solderability
Polishability
Castability
Same in both: Machinability 55 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Same in both: Embodied Water 1,200 L/kg144 gal/lb · Typical Recycled Content 5%
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
Strength versus weight
Yield strength against density for every aluminum grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Manufacturing and finishing
| Capability | A2024-RAM2 | Scalmalloy |
|---|---|---|
| 3D printing | — | Yes |
| Default condition | — | As Printed |
| Relative cost | $$$$ High | $$$$$ Specialty |
| Min. machined wall | — | — |
| Best machined surface | — | — |
| Anodized (Aluminum AM) | — | Yes |
| Plated (Metal AM) | — | Yes |
They share 4 finishes: Electroless Nickel (EN), Epoxy Coating, Gold Plating, Silver Plating.
A2024-RAM2 vs Scalmalloy — frequently asked
Is A2024-RAM2 stronger than Scalmalloy?
Yes. A2024-RAM2 has a typical yield strength of 430 MPa (62.4 ksi) against 285 MPa (41.3 ksi) for Scalmalloy — about 51% more. Tensile strength is 500 MPa (72.5 ksi) vs 400 MPa (58 ksi).
Which is cheaper, A2024-RAM2 or Scalmalloy?
A2024-RAM2 is the lower-cost material: it sits in the high tier ($$$$) while Scalmalloy is specialty ($$$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
Which welds better, A2024-RAM2 or Scalmalloy?
Scalmalloy. Its weldability rates good (60/100) against poor (25/100) for A2024-RAM2.
Ready to make it?
Upload a CAD file and FabDigit prices the part in A2024-RAM2 and Scalmalloy 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.