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Aluminum 2030 vs 2A80

Aluminum · grade comparison

Aluminum 2030 and 2A80 are both aluminum grades. 2A80 is the stronger of the two: yield strength 380 MPa (55.1 ksi) against 285 MPa (41.3 ksi) for 2030, about 33% more; tensile strength follows at 440 MPa (63.8 ksi) vs 400 MPa (58 ksi). In exchange, 2030 is the more ductile: elongation 12% versus 8% for 2A80, and 2A80 is harder (125 HB vs 100 HB). 2A80 runs hotter in service (200°C vs 100°C continuous) and 2A80 conducts heat better (150 W/m·K vs 134 W/m·K). On the shop floor, 2030 machines more easily (excellent vs good) and 2A80 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.

2A80Choose it when strength drives the design, or when the part sees heat.

2030 vs 2A80: properties

20302A80

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

73 GPa10.6 Msi
74 GPa10.7 Msi

Shear Modulus

27 GPa3.9 Msi
28 GPa4.1 Msi

Bulk Modulus

71 GPa10.3 Msi
76 GPa11 Msi

Tensile Strength (Ultimate)

400 MPa58 ksi
440 MPa63.8 ksi

Yield Strength (0.2% offset)

285 MPa41.3 ksi
380 MPa55.1 ksi

Elongation at Break

12%
8%

Shear Strength

240 MPa34.8 ksi
260 MPa37.7 ksi

Fracture Toughness (K_IC)

24 MPa·√m21.8 ksi·√in
26 MPa·√m23.7 ksi·√in

Hardness, Brinell

100 HB
125 HB

Hardness, Vickers

108 HV
135 HV

Same in both: Poisson's Ratio 0.33 · Fatigue Strength (Endurance Limit) 125 MPa18.1 ksi

Physical

Density and transition temperatures.

Density

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

Liquidus Temperature

640°C1,184 °F
638°C1,180 °F

Same in both: Melting Point (Solidus) 510°C950 °F

Thermal

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

Thermal Conductivity

134 W/m·K77.4 BTU/hr·ft·°F
150 W/m·K86.7 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

23 µm/m·K12.8 µin/in·°F
22.3 µm/m·K12.4 µin/in·°F

Max Service Temperature (continuous)

100°C212 °F
200°C392 °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).

Galvanic Potential (seawater, vs SCE)

-0.69 V
-0.7 V

Corrosion Resistance

30 / 100
33 / 100

Manufacturability

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

Machinability

92 / 100
68 / 100

Machinability Rating (AISI 1212 = 100 %)

90%
—

Weldability

12 / 100
22 / 100

Formability (cold)

35 / 100
20 / 100

Brazeability / Solderability

10 / 100
18 / 100

Same in both: Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Typical Recycled Content

10%
12%

Same in both: Embodied Energy (primary production) 205 MJ/kg88,134 BTU/lb · Embodied Carbon (primary production) 12.5 kg CO₂/kg · Embodied Water 1,200 L/kg144 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

142 kN·m/kg
157 kN·m/kg

Specific Stiffness (E / density)

25.9 MN·m/kg
26.4 MN·m/kg

Modulus of Resilience

556 kJ/m³
976 kJ/m³

Thermal Diffusivity

54.6 mm²/s
61.2 mm²/s

Thermal Shock Resistance Index

32
40

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 scale20302A80

Manufacturing and finishing

Capability20302A80
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 2A80 — frequently asked

Is 2A80 stronger than 2030?

Yes. 2A80 has a typical yield strength of 380 MPa (55.1 ksi) against 285 MPa (41.3 ksi) for 2030 — about 33% more. Tensile strength is 440 MPa (63.8 ksi) vs 400 MPa (58 ksi).

Which is cheaper, 2030 or 2A80?

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 2A80?

2030. Its machinability rates excellent (92/100) against good (68/100) for 2A80; for welding the order is 2A80 first (poor, 22/100) then 2030 (not recommended, 12/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 2030 and 2A80 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.