FabDigit

6351 vs 6005 and 2 more: properties

635160056005A6060

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

69 GPa10 Msi
69 GPa10 Msi
69.5 GPa10.1 Msi
69 GPa10 Msi

Tensile Strength (Ultimate)

310 MPa45 ksi
270 MPa39.2 ksi
275 MPa39.9 ksi
215 MPa31.2 ksi

Yield Strength (0.2% offset)

285 MPa41.3 ksi
245 MPa35.5 ksi
235 MPa34.1 ksi
170 MPa24.7 ksi

Elongation at Break

14%
11%
11%
12%

Shear Strength

200 MPa29 ksi
172 MPa24.9 ksi
180 MPa26.1 ksi
140 MPa20.3 ksi

Fatigue Strength (Endurance Limit)

90 MPa13.1 ksi
90 MPa13.1 ksi
90 MPa13.1 ksi
60 MPa8.7 ksi

Fracture Toughness (K_IC)

29 MPa·√m26.4 ksi·√in
30 MPa·√m27.3 ksi·√in
29 MPa·√m26.4 ksi·√in
30 MPa·√m27.3 ksi·√in

Hardness, Brinell

95 HB
85 HB
95 HB
75 HB

Hardness, Vickers

105 HV
90 HV
100 HV
80 HV

Compressive Strength

235 MPa34.1 ksi

Charpy V-Notch Impact (RT)

18 J13.3 ft·lbf

Same in both: Shear Modulus 26 GPa3.8 Msi · Bulk Modulus 69 GPa10 Msi · Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Density

2.71 g/cm³0.1 lb/in³
2.7 g/cm³0.1 lb/in³
2.7 g/cm³0.1 lb/in³
2.7 g/cm³0.1 lb/in³

Melting Point (Solidus)

555°C1,031 °F
607°C1,125 °F
607°C1,125 °F
600°C1,112 °F

Liquidus Temperature

650°C1,202 °F
654°C1,209 °F
654°C1,209 °F
655°C1,211 °F

Thermal

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

Thermal Conductivity

176 W/m·K102 BTU/hr·ft·°F
188 W/m·K109 BTU/hr·ft·°F
190 W/m·K110 BTU/hr·ft·°F
200 W/m·K116 BTU/hr·ft·°F

Specific Heat Capacity

895 J/kg·K0.21 BTU/lb·°F
897 J/kg·K0.21 BTU/lb·°F
897 J/kg·K0.21 BTU/lb·°F
898 J/kg·K0.21 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

23.4 µm/m·K13 µin/in·°F
23.4 µm/m·K13 µin/in·°F
23 µm/m·K12.8 µin/in·°F
23.4 µm/m·K13 µin/in·°F

Latent Heat of Fusion

390 J/g168 BTU/lb
397 J/g171 BTU/lb
393 J/g169 BTU/lb
397 J/g171 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

44 % IACS
49 % IACS
49 % IACS
54 % IACS

Electrical Resistivity

3.9×10⁻⁸ Ω·m1.54 µΩ·in
3.52×10⁻⁸ Ω·m1.39 µΩ·in
3.5×10⁻⁸ Ω·m1.38 µΩ·in
3.2×10⁻⁸ Ω·m1.26 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.74 V
-0.83 V
-0.78 V
-0.83 V

Corrosion Resistance

62 / 100
70 / 100
68 / 100
68 / 100

Manufacturability

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

Machinability

62 / 100
55 / 100
62 / 100
55 / 100

Machinability Rating (AISI 1212 = 100 %)

190%
50%
190%

Weldability

78 / 100
80 / 100
85 / 100
90 / 100

Formability (cold)

45 / 100
40 / 100
40 / 100
55 / 100

Castability

30 / 100
25 / 100
25 / 100

Brazeability / Solderability

45 / 100
50 / 100
45 / 100
60 / 100

Polishability

55 / 100
65 / 100
70 / 100
80 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

210 MJ/kg90,284 BTU/lb
200 MJ/kg85,985 BTU/lb
200 MJ/kg85,985 BTU/lb
200 MJ/kg85,985 BTU/lb

Embodied Carbon (primary production)

12.5 kg CO₂/kg
12.5 kg CO₂/kg
12.5 kg CO₂/kg
13 kg CO₂/kg

Embodied Water

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

Typical Recycled Content

30%
30%
30%
35%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

114 kN·m/kg
100 kN·m/kg
102 kN·m/kg
80 kN·m/kg

Specific Stiffness (E / density)

25.5 MN·m/kg
25.6 MN·m/kg
25.7 MN·m/kg
25.6 MN·m/kg

Modulus of Resilience

589 kJ/m³
435 kJ/m³
397 kJ/m³
209 kJ/m³

Thermal Diffusivity

72.6 mm²/s
77.6 mm²/s
78.5 mm²/s
82.5 mm²/s

Thermal Shock Resistance Index

34
31
33
27

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 scale60056005A60606351

Manufacturing and finishing

Capability635160056005A6060
Default condition
Relative cost$ Budget$$ Standard$ Budget$ Budget
Min. machined wall0.5 mm0.5 mm0.5 mm0.5 mm
Best machined surfaceRa 0.8 µmRa 0.8 µmRa 0.8 µmRa 0.8 µm

Both are offered for CNC machining and Sheet metal. Both take the same 16 finishes: Anodizing Type II, Cerakote, Chem Film (Alodine), DLC, E-Coating, Electroless Nickel (EN), Electropolishing, Epoxy Coating, Gold Plating, Hard Anodize Type III w/ PTFE, Hard Anodizing Type III, Nickel Plating and 4 more.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 6351 and 6005 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.