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Aluminum 2007 vs 2099

Aluminum · grade comparison

Aluminum 2007 and 2099 are both aluminum grades. 2099 is the stronger of the two: yield strength 520 MPa (75.4 ksi) against 300 MPa (43.5 ksi) for 2007, about 73% more; tensile strength follows at 560 MPa (81.2 ksi) vs 390 MPa (56.6 ksi). In exchange, 2007 is the more ductile: elongation 10% versus 8% for 2099, and 2099 is harder (150 HB vs 115 HB). 2099 is lighter (2.63 g/cm³ vs 2.85 g/cm³ for 2007) and 2099 is stiffer (78 GPa vs 72 GPa). On the shop floor, 2007 machines more easily (excellent vs good) and 2007 sits in a lower cost tier (premium, $$$) than 2099 (high, $$$$).

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

2099Choose it when strength drives the design, or when weight is the constraint.

2007 vs 2099: properties

20072099

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

72 GPa10.4 Msi
78 GPa11.3 Msi

Shear Modulus

27 GPa3.9 Msi
29.5 GPa4.3 Msi

Bulk Modulus

71 GPa10.3 Msi
76 GPa11 Msi

Tensile Strength (Ultimate)

390 MPa56.6 ksi
560 MPa81.2 ksi

Yield Strength (0.2% offset)

300 MPa43.5 ksi
520 MPa75.4 ksi

Elongation at Break

10%
8%

Shear Strength

235 MPa34.1 ksi
330 MPa47.9 ksi

Fatigue Strength (Endurance Limit)

125 MPa18.1 ksi
170 MPa24.7 ksi

Fracture Toughness (K_IC)

27 MPa·√m24.6 ksi·√in
33 MPa·√m30 ksi·√in

Hardness, Brinell

115 HB
150 HB

Hardness, Rockwell B

65 HRB
—

Compressive Strength

—
535 MPa77.6 ksi

Same in both: Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

508°C946 °F
560°C1,040 °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
112 W/m·K64.7 BTU/hr·ft·°F

Specific Heat Capacity

860 J/kg·K0.21 BTU/lb·°F
900 J/kg·K0.21 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

23 µm/m·K12.8 µin/in·°F
21.9 µm/m·K12.2 µin/in·°F

Latent Heat of Fusion

390 J/g168 BTU/lb
385 J/g166 BTU/lb

Max Service Temperature (continuous)

120°C248 °F
150°C302 °F

Min Service Temperature

-196°C-321 °F
-253°C-423 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

5.75×10⁻⁸ Ω·m2.26 µΩ·in
5.7×10⁻⁸ Ω·m2.24 µΩ·in

Same in both: Electrical Conductivity 30 % IACS

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.68 V
-0.8 V

Corrosion Resistance

30 / 100
42 / 100

Manufacturability

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

Machinability

95 / 100
65 / 100

Machinability Rating (AISI 1212 = 100 %)

300%
—

Weldability

15 / 100
22 / 100

Castability

25 / 100
—

Polishability

45 / 100
60 / 100

Same in both: Formability (cold) 25 / 100 · Brazeability / Solderability 15 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

200 MJ/kg85,985 BTU/lb
215 MJ/kg92,433 BTU/lb

Embodied Carbon (primary production)

12.5 kg CO₂/kg
13.5 kg CO₂/kg

Embodied Water

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

Typical Recycled Content

30%
5%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

137 kN·m/kg
213 kN·m/kg

Specific Stiffness (E / density)

25.3 MN·m/kg
29.7 MN·m/kg

Modulus of Resilience

625 kJ/m³
1,733 kJ/m³

Thermal Diffusivity

55.1 mm²/s
47.3 mm²/s

Thermal Shock Resistance Index

32
37

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 scale20072099

Manufacturing and finishing

Capability20072099
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 2099 — frequently asked

Is 2099 stronger than 2007?

Yes. 2099 has a typical yield strength of 520 MPa (75.4 ksi) against 300 MPa (43.5 ksi) for 2007 — about 73% more. Tensile strength is 560 MPa (81.2 ksi) vs 390 MPa (56.6 ksi).

Which is cheaper, 2007 or 2099?

2007 is the lower-cost material: it sits in the premium tier ($$$) while 2099 is high ($$$$). 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 2099?

2007. Its machinability rates excellent (95/100) against good (65/100) for 2099; for welding the order is 2099 first (poor, 22/100) then 2007 (poor, 15/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 2007 and 2099 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.