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Aluminum 2027 vs 2030

Aluminum · grade comparison

Aluminum 2027 and 2030 are both aluminum grades. 2027 is the stronger of the two: yield strength 340 MPa (49.3 ksi) against 285 MPa (41.3 ksi) for 2030, about 19% more; tensile strength follows at 475 MPa (68.9 ksi) vs 400 MPa (58 ksi). 2027 is the more ductile: elongation 15% versus 12% for 2030, and 2027 is harder (132 HB vs 100 HB). 2027 runs hotter in service (120°C vs 100°C continuous) and 2030 conducts heat better (134 W/m·K vs 120 W/m·K). On the shop floor, 2030 machines more easily (excellent vs very good) and 2030 sits in a lower cost tier (premium, $$$) than 2027 (high, $$$$).

2027Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

2030Choose it when the part is machined in volume, or when cost is the deciding factor.

2027 vs 2030: properties

20272030

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Shear Modulus

27.5 GPa4 Msi
27 GPa3.9 Msi

Bulk Modulus

75 GPa10.9 Msi
71 GPa10.3 Msi

Tensile Strength (Ultimate)

475 MPa68.9 ksi
400 MPa58 ksi

Yield Strength (0.2% offset)

340 MPa49.3 ksi
285 MPa41.3 ksi

Elongation at Break

15%
12%

Compressive Strength

330 MPa47.9 ksi
—

Shear Strength

285 MPa41.3 ksi
240 MPa34.8 ksi

Fatigue Strength (Endurance Limit)

145 MPa21 ksi
125 MPa18.1 ksi

Fracture Toughness (K_IC)

40 MPa·√m36.4 ksi·√in
24 MPa·√m21.8 ksi·√in

Hardness, Brinell

132 HB
100 HB

Hardness, Rockwell B

78 HRB
—

Hardness, Vickers

—
108 HV

Same in both: Elastic (Young's) Modulus 73 GPa10.6 Msi · Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

502°C936 °F
510°C950 °F

Liquidus Temperature

638°C1,180 °F
640°C1,184 °F

Thermal

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

Thermal Conductivity

120 W/m·K69.3 BTU/hr·ft·°F
134 W/m·K77.4 BTU/hr·ft·°F

Specific Heat Capacity

875 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

Max Service Temperature (continuous)

120°C248 °F
100°C212 °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

30 % IACS
32 % IACS

Electrical Resistivity

5.75×10⁻⁸ Ω·m2.26 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)

-0.68 V
-0.69 V

Corrosion Resistance

33 / 100
30 / 100

Manufacturability

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

Machinability

72 / 100
92 / 100

Machinability Rating (AISI 1212 = 100 %)

70%
90%

Weldability

20 / 100
12 / 100

Formability (cold)

40 / 100
35 / 100

Same in both: Brazeability / Solderability 10 / 100 · Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Typical Recycled Content

8%
10%

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)

171 kN·m/kg
142 kN·m/kg

Specific Stiffness (E / density)

26.4 MN·m/kg
25.9 MN·m/kg

Modulus of Resilience

792 kJ/m³
556 kJ/m³

Thermal Diffusivity

49.5 mm²/s
54.6 mm²/s

Thermal Shock Resistance Index

34
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 scale20302027

Manufacturing and finishing

Capability20272030
CNC machining—Yes
Sheet metal—Yes
Default condition——
Relative cost$$$$ High$$$ 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.

2027 vs 2030 — frequently asked

Is 2027 stronger than 2030?

Yes. 2027 has a typical yield strength of 340 MPa (49.3 ksi) against 285 MPa (41.3 ksi) for 2030 — about 19% more. Tensile strength is 475 MPa (68.9 ksi) vs 400 MPa (58 ksi).

Which is cheaper, 2027 or 2030?

2030 is the lower-cost material: it sits in the premium tier ($$$) while 2027 is high ($$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which is easier to machine, 2027 or 2030?

2030. Its machinability rates excellent (92/100) against very good (72/100) for 2027; for welding the order is 2027 first (poor, 20/100) then 2030 (not recommended, 12/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 2027 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.