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Aluminum A2024-RAM2 vs AlMgSc

Aluminum · grade comparison

Aluminum A2024-RAM2 and AlMgSc are both aluminum grades. AlMgSc is the stronger of the two: yield strength 460 MPa (66.7 ksi) against 430 MPa (62.4 ksi) for A2024-RAM2, about 7% more. AlMgSc is the more ductile: elongation 12% versus 6% for A2024-RAM2. AlMgSc 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, AlMgSc welds better (excellent vs poor).

AlMgScChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

A2024-RAM2 vs AlMgSc: properties

A2024-RAM2AlMgSc

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

78 GPa11.3 Msi
70 GPa10.2 Msi

Shear Modulus

29 GPa4.2 Msi
26.5 GPa3.8 Msi

Bulk Modulus

76 GPa11 Msi
69 GPa10 Msi

Yield Strength (0.2% offset)

430 MPa62.4 ksi
460 MPa66.7 ksi

Elongation at Break

6%
12%

Compressive Strength

440 MPa63.8 ksi
470 MPa68.2 ksi

Fatigue Strength (Endurance Limit)

130 MPa18.9 ksi
160 MPa23.2 ksi

Fracture Toughness (K_IC)

22 MPa·√m20 ksi·√in
33 MPa·√m30 ksi·√in

Hardness, Rockwell B

82 HRB
80 HRB

Same in both: Poisson's Ratio 0.33 · Tensile Strength (Ultimate) 500 MPa72.5 ksi · Shear Strength 295 MPa42.8 ksi · Hardness, Brinell 140 HB · Hardness, Vickers 150 HV

Physical

Density and transition temperatures.

Density

2.78 g/cm³0.1 lb/in³
2.67 g/cm³0.1 lb/in³

Melting Point (Solidus)

502°C936 °F
585°C1,085 °F

Liquidus Temperature

638°C1,180 °F
645°C1,193 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

120 W/m·K69.3 BTU/hr·ft·°F
110 W/m·K63.6 BTU/hr·ft·°F

Specific Heat Capacity

875 J/kg·K0.21 BTU/lb·°F
900 J/kg·K0.21 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

21.5 µm/m·K11.9 µin/in·°F
23.5 µm/m·K13.1 µin/in·°F

Same in both: Latent Heat of Fusion 390 J/g168 BTU/lb · Max Service Temperature (continuous) 150°C302 °F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

32 % IACS
28 % IACS

Electrical Resistivity

5.4×10⁻⁸ Ω·m2.13 µΩ·in
6.2×10⁻⁸ Ω·m2.44 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.78 V
-0.87 V

Corrosion Resistance

33 / 100
68 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability Rating (AISI 1212 = 100 %)

130%
110%

Weldability

25 / 100
85 / 100

Formability (cold)

15 / 100
45 / 100

Brazeability / Solderability

15 / 100
30 / 100

Polishability

55 / 100
60 / 100

Castability

—
50 / 100

Same in both: Machinability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

15 kg CO₂/kg
24 kg CO₂/kg

Same in both: Embodied Energy (primary production) 260 MJ/kg111,780 BTU/lb · Embodied Water 1,200 L/kg144 gal/lb · Typical Recycled Content 5%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

180 kN·m/kg
187 kN·m/kg

Specific Stiffness (E / density)

28.1 MN·m/kg
26.2 MN·m/kg

Modulus of Resilience

1,185 kJ/m³
1,511 kJ/m³

Thermal Diffusivity

49.3 mm²/s
45.8 mm²/s

Thermal Shock Resistance Index

36
33

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.

20501002005002.22.42.62.83Density (g/cm³)Yield strength (MPa) — log scaleAlMgScA2024-RAM2

Manufacturing and finishing

CapabilityA2024-RAM2AlMgSc
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Both take the same 4 finishes: Electroless Nickel (EN), Epoxy Coating, Gold Plating, Silver Plating.

A2024-RAM2 vs AlMgSc — frequently asked

Is AlMgSc stronger than A2024-RAM2?

Yes. AlMgSc has a typical yield strength of 460 MPa (66.7 ksi) against 430 MPa (62.4 ksi) for A2024-RAM2 — about 7% more. Tensile strength is 500 MPa (72.5 ksi) vs 500 MPa (72.5 ksi).

Which is cheaper, A2024-RAM2 or AlMgSc?

Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which welds better, A2024-RAM2 or AlMgSc?

AlMgSc. Its weldability rates excellent (85/100) against poor (25/100) for A2024-RAM2.

Ready to make it?

Upload a CAD file and FabDigit prices the part in A2024-RAM2 and AlMgSc 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.