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Aluminum 2007 vs 2020

Aluminum · grade comparison

Aluminum 2007 and 2020 are both aluminum grades. 2020 is the stronger of the two: yield strength 530 MPa (76.9 ksi) against 300 MPa (43.5 ksi) for 2007, about 77% more; tensile strength follows at 580 MPa (84.1 ksi) vs 390 MPa (56.6 ksi). In exchange, 2007 is the more ductile: elongation 10% versus 4% for 2020, and 2020 is harder (150 HB vs 115 HB). 2020 is stiffer (76 GPa vs 72 GPa) and 2020 runs hotter in service (150°C vs 120°C continuous). On the shop floor, 2007 machines more easily (excellent vs good) and 2007 sits in a lower cost tier (premium, $$$) than 2020 (high, $$$$).

2007Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

2020Choose it when strength drives the design, or when the part sees heat.

2007 vs 2020: properties

20072020

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

72 GPa10.4 Msi
76 GPa11 Msi

Shear Modulus

27 GPa3.9 Msi
28.5 GPa4.1 Msi

Bulk Modulus

71 GPa10.3 Msi
74 GPa10.7 Msi

Tensile Strength (Ultimate)

390 MPa56.6 ksi
580 MPa84.1 ksi

Yield Strength (0.2% offset)

300 MPa43.5 ksi
530 MPa76.9 ksi

Elongation at Break

10%
4%

Shear Strength

235 MPa34.1 ksi
325 MPa47.1 ksi

Fatigue Strength (Endurance Limit)

125 MPa18.1 ksi
140 MPa20.3 ksi

Fracture Toughness (K_IC)

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

Hardness, Brinell

115 HB
150 HB

Hardness, Rockwell B

65 HRB
—

Same in both: Poisson's Ratio 0.33

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
510°C950 °F

Liquidus Temperature

640°C1,184 °F
645°C1,193 °F

Thermal

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

Thermal Conductivity

135 W/m·K78 BTU/hr·ft·°F
140 W/m·K80.9 BTU/hr·ft·°F

Specific Heat Capacity

860 J/kg·K0.21 BTU/lb·°F
865 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
33 % IACS

Electrical Resistivity

5.75×10⁻⁸ Ω·m2.26 µΩ·in
5.2×10⁻⁸ Ω·m2.05 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.68 V
-0.7 V

Corrosion Resistance

30 / 100
28 / 100

Manufacturability

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

Machinability

95 / 100
62 / 100

Machinability Rating (AISI 1212 = 100 %)

300%
70%

Formability (cold)

25 / 100
20 / 100

Castability

25 / 100
20 / 100

Brazeability / Solderability

15 / 100
10 / 100

Polishability

45 / 100
55 / 100

Same in both: Weldability 15 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

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

Embodied Carbon (primary production)

12.5 kg CO₂/kg
13 kg CO₂/kg

Embodied Water

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

Typical Recycled Content

30%
0%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

137 kN·m/kg
207 kN·m/kg

Specific Stiffness (E / density)

25.3 MN·m/kg
27.1 MN·m/kg

Modulus of Resilience

625 kJ/m³
1,848 kJ/m³

Thermal Diffusivity

55.1 mm²/s
57.8 mm²/s

Thermal Shock Resistance Index

32
47

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 scale20072020

Manufacturing and finishing

Capability20072020
CNC machiningYes—
Sheet metalYes—
Default condition——
Relative cost$$$ Premium$$$$ High
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 2020 — frequently asked

Is 2020 stronger than 2007?

Yes. 2020 has a typical yield strength of 530 MPa (76.9 ksi) against 300 MPa (43.5 ksi) for 2007 — about 77% more. Tensile strength is 580 MPa (84.1 ksi) vs 390 MPa (56.6 ksi).

Which is cheaper, 2007 or 2020?

2007 is the lower-cost material: it sits in the premium tier ($$$) while 2020 is high ($$$$). 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, 2007 or 2020?

2007. Its machinability rates excellent (95/100) against good (62/100) for 2020.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 2007 and 2020 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.