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6351 Aluminum vs. Nickel 30

6351 aluminum belongs to the aluminum alloys classification, while nickel 30 belongs to the nickel alloys. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 6351 aluminum and the bottom bar is nickel 30.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
210
Elongation at Break, % 7.8 to 18
34
Fatigue Strength, MPa 79 to 130
200
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
82
Shear Strength, MPa 84 to 200
440
Tensile Strength: Ultimate (UTS), MPa 140 to 310
660
Tensile Strength: Yield (Proof), MPa 95 to 270
270

Thermal Properties

Latent Heat of Fusion, J/g 410
320
Maximum Temperature: Mechanical, °C 160
1020
Melting Completion (Liquidus), °C 650
1480
Melting Onset (Solidus), °C 570
1430
Specific Heat Capacity, J/kg-K 900
450
Thermal Conductivity, W/m-K 180
10
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 46
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 150
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
60
Density, g/cm3 2.7
8.5
Embodied Carbon, kg CO2/kg material 8.3
9.4
Embodied Energy, MJ/kg 150
130
Embodied Water, L/kg 1180
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 38
180
Resilience: Unit (Modulus of Resilience), kJ/m3 65 to 540
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
23
Strength to Weight: Axial, points 14 to 32
22
Strength to Weight: Bending, points 22 to 38
20
Thermal Diffusivity, mm2/s 72
2.7
Thermal Shock Resistance, points 6.1 to 14
18

Alloy Composition

Aluminum (Al), % 96 to 98.5
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
28 to 31.5
Cobalt (Co), % 0
0 to 5.0
Copper (Cu), % 0 to 0.1
1.0 to 2.4
Iron (Fe), % 0 to 0.5
13 to 17
Magnesium (Mg), % 0.4 to 0.8
0
Manganese (Mn), % 0.4 to 0.8
0 to 0.030
Molybdenum (Mo), % 0
4.0 to 6.0
Nickel (Ni), % 0
30.2 to 52.2
Niobium (Nb), % 0
0.3 to 1.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.7 to 1.3
0 to 0.8
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.2
0
Tungsten (W), % 0
1.5 to 4.0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0