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Aluminum 2030 vs 2A25

Aluminum · grade comparison

Aluminum 2030 and 2A25 are both aluminum grades. 2A25 is the stronger of the two: yield strength 395 MPa (57.3 ksi) against 285 MPa (41.3 ksi) for 2030, about 39% more; tensile strength follows at 450 MPa (65.3 ksi) vs 400 MPa (58 ksi). In exchange, 2030 is the more ductile: elongation 12% versus 9% for 2A25, and 2A25 is harder (130 HB vs 100 HB). 2A25 runs hotter in service (150°C vs 100°C continuous) and 2A25 conducts heat better (155 W/m·K vs 134 W/m·K). On the shop floor, 2030 machines more easily (excellent vs very good) and 2A25 welds better (poor vs not recommended).

2030Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

2A25Choose it when strength drives the design, or when the part sees heat.

2030 vs 2A25: properties

20302A25

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

73 GPa10.6 Msi
72 GPa10.4 Msi

Bulk Modulus

71 GPa10.3 Msi
75 GPa10.9 Msi

Tensile Strength (Ultimate)

400 MPa58 ksi
450 MPa65.3 ksi

Yield Strength (0.2% offset)

285 MPa41.3 ksi
395 MPa57.3 ksi

Elongation at Break

12%
9%

Shear Strength

240 MPa34.8 ksi
275 MPa39.9 ksi

Hardness, Brinell

100 HB
130 HB

Hardness, Vickers

108 HV
140 HV

Reduction in Area

—
20%

Compressive Strength

—
400 MPa58 ksi

Charpy V-Notch Impact (RT)

—
10 J7.4 ft·lbf

Same in both: Shear Modulus 27 GPa3.9 Msi · Poisson's Ratio 0.33 · Fatigue Strength (Endurance Limit) 125 MPa18.1 ksi · Fracture Toughness (K_IC) 24 MPa·√m21.8 ksi·√in

Physical

Density and transition temperatures.

Density

2.82 g/cm³0.1 lb/in³
2.8 g/cm³0.1 lb/in³

Melting Point (Solidus)

510°C950 °F
507°C945 °F

Liquidus Temperature

640°C1,184 °F
638°C1,180 °F

Thermal

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

Thermal Conductivity

134 W/m·K77.4 BTU/hr·ft·°F
155 W/m·K89.6 BTU/hr·ft·°F

Specific Heat Capacity

870 J/kg·K0.21 BTU/lb·°F
880 J/kg·K0.21 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

23 µm/m·K12.8 µin/in·°F
22.5 µm/m·K12.5 µin/in·°F

Max Service Temperature (continuous)

100°C212 °F
150°C302 °F

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

32 % IACS
40 % IACS

Electrical Resistivity

5.4×10⁻⁸ Ω·m2.13 µΩ·in
4.3×10⁻⁸ Ω·m1.69 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

30 / 100
35 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.69 V

Manufacturability

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

Machinability

92 / 100
70 / 100

Machinability Rating (AISI 1212 = 100 %)

90%
120%

Weldability

12 / 100
25 / 100

Formability (cold)

35 / 100
30 / 100

Brazeability / Solderability

10 / 100
15 / 100

Castability

—
20 / 100

Same in both: Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

205 MJ/kg88,134 BTU/lb
200 MJ/kg85,985 BTU/lb

Embodied Carbon (primary production)

12.5 kg CO₂/kg
14 kg CO₂/kg

Embodied Water

1,200 L/kg144 gal/lb
1,100 L/kg132 gal/lb

Typical Recycled Content

10%
15%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

142 kN·m/kg
161 kN·m/kg

Specific Stiffness (E / density)

25.9 MN·m/kg
25.7 MN·m/kg

Modulus of Resilience

556 kJ/m³
1,084 kJ/m³

Thermal Diffusivity

54.6 mm²/s
62.9 mm²/s

Thermal Shock Resistance Index

32
43

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 scale20302A25

Manufacturing and finishing

Capability20302A25
CNC machiningYes—
Sheet metalYes—
Default condition——
Relative cost$$$ Premium$$$ Premium
Min. machined wall0.5 mm—
Best machined surfaceRa 0.8 µm—
Anodizing Type IIYes—
CerakoteYes—
Chem Film (Alodine)Yes—
DLCYes—
E-CoatingYes—
ElectropolishingYes—
Hard Anodize Type III w/ PTFEYes—
Hard Anodizing Type IIIYes—
Nickel PlatingYes—
PTFE CoatingYes—
PaintingYes—
Powder CoatingYes—

They share 4 finishes: Electroless Nickel (EN), Epoxy Coating, Gold Plating, Silver Plating.

2030 vs 2A25 — frequently asked

Is 2A25 stronger than 2030?

Yes. 2A25 has a typical yield strength of 395 MPa (57.3 ksi) against 285 MPa (41.3 ksi) for 2030 — about 39% more. Tensile strength is 450 MPa (65.3 ksi) vs 400 MPa (58 ksi).

Which is cheaper, 2030 or 2A25?

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

Which is easier to machine, 2030 or 2A25?

2030. Its machinability rates excellent (92/100) against very good (70/100) for 2A25; for welding the order is 2A25 first (poor, 25/100) then 2030 (not recommended, 12/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 2030 and 2A25 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.