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Aluminum 2007 vs 2A25

Aluminum · grade comparison

Aluminum 2007 and 2A25 are both aluminum grades. 2A25 is the stronger of the two: yield strength 395 MPa (57.3 ksi) against 300 MPa (43.5 ksi) for 2007, about 32% more; tensile strength follows at 450 MPa (65.3 ksi) vs 390 MPa (56.6 ksi). In exchange, 2007 is the more ductile: elongation 10% versus 9% for 2A25, and 2A25 is harder (130 HB vs 115 HB). 2A25 runs hotter in service (150°C vs 120°C continuous) and 2A25 conducts heat better (155 W/m·K vs 135 W/m·K). On the shop floor, 2007 machines more easily (excellent vs very good) and 2A25 welds better (25 vs 15 out of 100).

2007Choose 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.

2007 vs 2A25: properties

20072A25

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Bulk Modulus

71 GPa10.3 Msi
75 GPa10.9 Msi

Tensile Strength (Ultimate)

390 MPa56.6 ksi
450 MPa65.3 ksi

Yield Strength (0.2% offset)

300 MPa43.5 ksi
395 MPa57.3 ksi

Elongation at Break

10%
9%

Shear Strength

235 MPa34.1 ksi
275 MPa39.9 ksi

Fracture Toughness (K_IC)

27 MPa·√m24.6 ksi·√in
24 MPa·√m21.8 ksi·√in

Hardness, Brinell

115 HB
130 HB

Hardness, Rockwell B

65 HRB
—

Reduction in Area

—
20%

Compressive Strength

—
400 MPa58 ksi

Charpy V-Notch Impact (RT)

—
10 J7.4 ft·lbf

Hardness, Vickers

—
140 HV

Same in both: Elastic (Young's) Modulus 72 GPa10.4 Msi · Shear Modulus 27 GPa3.9 Msi · Poisson's Ratio 0.33 · Fatigue Strength (Endurance Limit) 125 MPa18.1 ksi

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

508°C946 °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

135 W/m·K78 BTU/hr·ft·°F
155 W/m·K89.6 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%
120%

Weldability

15 / 100
25 / 100

Formability (cold)

25 / 100
30 / 100

Castability

25 / 100
20 / 100

Polishability

45 / 100
55 / 100

Same in both: Brazeability / Solderability 15 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

12.5 kg CO₂/kg
14 kg CO₂/kg

Embodied Water

1,150 L/kg138 gal/lb
1,100 L/kg132 gal/lb

Typical Recycled Content

30%
15%

Same in both: Embodied Energy (primary production) 200 MJ/kg85,985 BTU/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

137 kN·m/kg
161 kN·m/kg

Specific Stiffness (E / density)

25.3 MN·m/kg
25.7 MN·m/kg

Modulus of Resilience

625 kJ/m³
1,084 kJ/m³

Thermal Diffusivity

55.1 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 scale20072A25

Manufacturing and finishing

Capability20072A25
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 2A25 — frequently asked

Is 2A25 stronger than 2007?

Yes. 2A25 has a typical yield strength of 395 MPa (57.3 ksi) against 300 MPa (43.5 ksi) for 2007 — about 32% more. Tensile strength is 450 MPa (65.3 ksi) vs 390 MPa (56.6 ksi).

Which is cheaper, 2007 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, 2007 or 2A25?

2007. Its machinability rates excellent (95/100) against very good (70/100) for 2A25; for welding the order is 2A25 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 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.