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Aluminum 2011A vs 2030

Aluminum · grade comparison

Aluminum 2011A and 2030 are both aluminum grades. 2030 is the stronger of the two: tensile strength 400 MPa (58 ksi) against 380 MPa (55.1 ksi) for 2011A, about 5% more. In exchange, 2011A is the more ductile: elongation 15% versus 12% for 2030, and 2030 is harder (100 HB vs 95 HB). 2011A conducts heat better (152 W/m·K vs 134 W/m·K).

2011AChoose it when the part is bent, formed or impact-loaded.

2030Choose it when strength drives the design.

2011A vs 2030: properties

2011A2030

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

70 GPa10.2 Msi
73 GPa10.6 Msi

Shear Modulus

26 GPa3.8 Msi
27 GPa3.9 Msi

Bulk Modulus

69 GPa10 Msi
71 GPa10.3 Msi

Tensile Strength (Ultimate)

380 MPa55.1 ksi
400 MPa58 ksi

Yield Strength (0.2% offset)

295 MPa42.8 ksi
285 MPa41.3 ksi

Elongation at Break

15%
12%

Shear Strength

220 MPa31.9 ksi
240 MPa34.8 ksi

Hardness, Brinell

95 HB
100 HB

Hardness, Rockwell B

60 HRB
—

Hardness, Vickers

105 HV
108 HV

Fracture Toughness (K_IC)

—
24 MPa·√m21.8 ksi·√in

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

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

535°C995 °F
510°C950 °F

Liquidus Temperature

643°C1,189 °F
640°C1,184 °F

Thermal

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

Thermal Conductivity

152 W/m·K87.8 BTU/hr·ft·°F
134 W/m·K77.4 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

22.9 µm/m·K12.7 µin/in·°F
23 µm/m·K12.8 µin/in·°F

Same in both: Latent Heat of Fusion 390 J/g168 BTU/lb · Max Service Temperature (continuous) 100°C212 °F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

39 % IACS
32 % IACS

Electrical Resistivity

4.4×10⁻⁸ Ω·m1.73 µΩ·in
5.4×10⁻⁸ Ω·m2.13 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.72 V
-0.69 V

Same in both: Corrosion Resistance 30 / 100

Manufacturability

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

Machinability

99 / 100
92 / 100

Machinability Rating (AISI 1212 = 100 %)

300%
90%

Weldability

10 / 100
12 / 100

Formability (cold)

22 / 100
35 / 100

Castability

25 / 100
—

Polishability

45 / 100
55 / 100

Same in both: Brazeability / Solderability 10 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

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

Embodied Water

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

Typical Recycled Content

25%
10%

Same in both: Embodied Carbon (primary production) 12.5 kg CO₂/kg

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

134 kN·m/kg
142 kN·m/kg

Specific Stiffness (E / density)

24.7 MN·m/kg
25.9 MN·m/kg

Modulus of Resilience

622 kJ/m³
556 kJ/m³

Thermal Diffusivity

62.2 mm²/s
54.6 mm²/s

Thermal Shock Resistance Index

36
32

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 scale20302011A

Manufacturing and finishing

Capability2011A2030
CNC machining—Yes
Sheet metal—Yes
Default condition——
Relative cost$$$ Premium$$$ Premium
Min. machined wall—0.5 mm
Best machined surface—Ra 0.8 µm
Anodizing Type II—Yes
Cerakote—Yes
Chem Film (Alodine)—Yes
DLC—Yes
E-Coating—Yes
Electropolishing—Yes
Hard Anodize Type III w/ PTFE—Yes
Hard Anodizing Type III—Yes
Nickel Plating—Yes
PTFE Coating—Yes
Painting—Yes
Powder Coating—Yes

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

2011A vs 2030 — frequently asked

Is 2030 stronger than 2011A?

Yes. 2030 has a typical tensile strength of 400 MPa (58 ksi) against 380 MPa (55.1 ksi) for 2011A — about 5% more.

Which is cheaper, 2011A or 2030?

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, 2011A or 2030?

2011A, by a small margin. Both rate excellent for machinability — 99/100 against 92/100 for 2030.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 2011A and 2030 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.