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Aluminum 2007 vs 2A50

Aluminum · grade comparison

Aluminum 2007 and 2A50 are both aluminum grades. Both yield at about 300 MPa — strength does not separate them. 2A50 is the more ductile: elongation 12% versus 10% for 2007, and 2007 is harder (115 HB vs 100 HB). 2A50 is lighter (2.75 g/cm³ vs 2.85 g/cm³ for 2007) and 2A50 runs hotter in service (150°C vs 120°C continuous). On the shop floor, 2007 machines more easily (excellent vs very good) and 2A50 welds better (25 vs 15 out of 100).

2007Choose it when the part is machined in volume.

2A50Choose it when the part is bent, formed or impact-loaded, or when weight is the constraint.

2007 vs 2A50: properties

20072A50

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

72 GPa10.4 Msi
71 GPa10.3 Msi

Bulk Modulus

71 GPa10.3 Msi
75 GPa10.9 Msi

Tensile Strength (Ultimate)

390 MPa56.6 ksi
400 MPa58 ksi

Yield Strength (0.2% offset)

300 MPa43.5 ksi
310 MPa45 ksi

Elongation at Break

10%
12%

Shear Strength

235 MPa34.1 ksi
255 MPa37 ksi

Fatigue Strength (Endurance Limit)

125 MPa18.1 ksi
120 MPa17.4 ksi

Fracture Toughness (K_IC)

27 MPa·√m24.6 ksi·√in
25 MPa·√m22.8 ksi·√in

Hardness, Brinell

115 HB
100 HB

Hardness, Rockwell B

65 HRB
—

Hardness, Vickers

—
110 HV

Same in both: Shear Modulus 27 GPa3.9 Msi · Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Density

2.85 g/cm³0.1 lb/in³
2.75 g/cm³0.1 lb/in³

Melting Point (Solidus)

508°C946 °F
510°C950 °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

135 W/m·K78 BTU/hr·ft·°F
165 W/m·K95.3 BTU/hr·ft·°F

Specific Heat Capacity

860 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)

120°C248 °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

30 % IACS
40 % IACS

Electrical Resistivity

5.75×10⁻⁸ Ω·m2.26 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)

-0.68 V
-0.69 V

Corrosion Resistance

30 / 100
35 / 100

Manufacturability

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

Machinability

95 / 100
70 / 100

Machinability Rating (AISI 1212 = 100 %)

300%
150%

Weldability

15 / 100
25 / 100

Formability (cold)

25 / 100
30 / 100

Castability

25 / 100
30 / 100

Brazeability / Solderability

15 / 100
20 / 100

Polishability

45 / 100
55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Water

1,150 L/kg138 gal/lb
1,200 L/kg144 gal/lb

Typical Recycled Content

30%
25%

Same in both: Embodied Energy (primary production) 200 MJ/kg85,985 BTU/lb · Embodied Carbon (primary production) 12.5 kg CO₂/kg

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

137 kN·m/kg
145 kN·m/kg

Specific Stiffness (E / density)

25.3 MN·m/kg
25.8 MN·m/kg

Modulus of Resilience

625 kJ/m³
677 kJ/m³

Thermal Diffusivity

55.1 mm²/s
68.2 mm²/s

Thermal Shock Resistance Index

32
41

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 scale20072A50

Manufacturing and finishing

Capability20072A50
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.

2007 vs 2A50 — frequently asked

What is the difference between 2007 and 2A50?

Aluminum 2007 and 2A50 are both aluminum grades. Both yield at about 300 MPa — strength does not separate them. 2A50 is the more ductile: elongation 12% versus 10% for 2007, and 2007 is harder (115 HB vs 100 HB).

Which is cheaper, 2007 or 2A50?

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, 2007 or 2A50?

2007. Its machinability rates excellent (95/100) against very good (70/100) for 2A50; for welding the order is 2A50 first (poor, 25/100) then 2007 (poor, 15/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 2007 and 2A50 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.