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Aluminum 8079 vs Sintered 2014

Aluminum · grade comparison

Aluminum 8079 and Sintered 2014 are both aluminum grades. Sintered 2014 is the stronger of the two: yield strength 250 MPa (36.3 ksi) against 35 MPa (5.08 ksi) for 8079, about 7.1 times as much; tensile strength follows at 270 MPa (39.2 ksi) vs 85 MPa (12.3 ksi). In exchange, 8079 is the more ductile: elongation 25% versus 1.5% for Sintered 2014, and Sintered 2014 is harder (90 HB vs 22 HB). Sintered 2014 is lighter (2.55 g/cm³ vs 2.72 g/cm³ for 8079) and 8079 is stiffer (69 GPa vs 62 GPa). On the shop floor, Sintered 2014 machines more easily (very good vs poor), 8079 welds better (very good vs poor), and 8079 sits in a lower cost tier (budget, $) than Sintered 2014 (high, $$$$).

8079Choose it when the part is bent, formed or impact-loaded, or when it will be welded.

Sintered 2014Choose it when strength drives the design, or when weight is the constraint.

8079 vs Sintered 2014: properties

8079Sintered 2014

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

69 GPa10 Msi
62 GPa9 Msi

Shear Modulus

26 GPa3.8 Msi
23 GPa3.3 Msi

Bulk Modulus

70 GPa10.2 Msi
58 GPa8.4 Msi

Poisson's Ratio

0.33
0.32

Tensile Strength (Ultimate)

85 MPa12.3 ksi
270 MPa39.2 ksi

Yield Strength (0.2% offset)

35 MPa5.1 ksi
250 MPa36.3 ksi

Elongation at Break

25%
1.5%

Shear Strength

55 MPa8 ksi
180 MPa26.1 ksi

Fatigue Strength (Endurance Limit)

35 MPa5.1 ksi
80 MPa11.6 ksi

Hardness, Brinell

22 HB
90 HB

Compressive Strength

—
320 MPa46.4 ksi

Charpy V-Notch Impact (RT)

—
3 J1.8 ft·lbf

Hardness, Rockwell B

—
60 HRB

Physical

Density and transition temperatures.

Density

2.72 g/cm³0.1 lb/in³
2.55 g/cm³0.09 lb/in³

Melting Point (Solidus)

645°C1,193 °F
507°C945 °F

Liquidus Temperature

655°C1,211 °F
638°C1,180 °F

Thermal

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

Thermal Conductivity

225 W/m·K130 BTU/hr·ft·°F
135 W/m·K78 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

23.6 µm/m·K13.1 µin/in·°F
22.5 µm/m·K12.5 µin/in·°F

Latent Heat of Fusion

395 J/g170 BTU/lb
390 J/g168 BTU/lb

Same in both: Max Service Temperature (continuous) 150°C302 °F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

58 % IACS
34 % IACS

Electrical Resistivity

2.97×10⁻⁸ Ω·m1.17 µΩ·in
5.1×10⁻⁸ Ω·m2.01 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.83 V
-0.66 V

Corrosion Resistance

72 / 100
40 / 100

Manufacturability

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

Machinability

30 / 100
78 / 100

Machinability Rating (AISI 1212 = 100 %)

30%
80%

Weldability

75 / 100
18 / 100

Formability (cold)

95 / 100
8 / 100

Castability

60 / 100
25 / 100

Brazeability / Solderability

55 / 100
25 / 100

Polishability

50 / 100
30 / 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
13.5 kg CO₂/kg

Embodied Water

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

Typical Recycled Content

25%
10%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

31 kN·m/kg
106 kN·m/kg

Specific Stiffness (E / density)

25.4 MN·m/kg
24.3 MN·m/kg

Modulus of Resilience

9 kJ/m³
504 kJ/m³

Thermal Diffusivity

91.9 mm²/s
60.2 mm²/s

Thermal Shock Resistance Index

12
26

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 scale8079Sintered 2014

Manufacturing and finishing

Capability8079Sintered 2014
Sheet metalYes—
Default condition——
Relative cost$ Budget$$$$ High
Min. machined wall——
Best machined surface——
Anodizing Type IIYes—
CerakoteYes—
Chem Film (Alodine)Yes—
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.

8079 vs Sintered 2014 — frequently asked

Is Sintered 2014 stronger than 8079?

Yes. Sintered 2014 has a typical yield strength of 250 MPa (36.3 ksi) against 35 MPa (5.08 ksi) for 8079 — about 7.1 times as much. Tensile strength is 270 MPa (39.2 ksi) vs 85 MPa (12.3 ksi).

Which is cheaper, 8079 or Sintered 2014?

8079 is the lower-cost material: it sits in the budget tier ($) while Sintered 2014 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, 8079 or Sintered 2014?

Sintered 2014. Its machinability rates very good (78/100) against poor (30/100) for 8079; for welding the order is 8079 first (very good, 75/100) then Sintered 2014 (poor, 18/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 8079 and Sintered 2014 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.