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EN 2.4851 Nickel vs. 7049 Aluminum

EN 2.4851 nickel belongs to the nickel alloys classification, while 7049 aluminum belongs to the aluminum 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 EN 2.4851 nickel and the bottom bar is 7049 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
140
Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 34
6.2 to 7.0
Fatigue Strength, MPa 170
160 to 170
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
27
Shear Strength, MPa 430
300 to 310
Tensile Strength: Ultimate (UTS), MPa 650
510 to 530
Tensile Strength: Yield (Proof), MPa 230
420 to 450

Thermal Properties

Latent Heat of Fusion, J/g 320
370
Maximum Temperature: Mechanical, °C 1200
180
Melting Completion (Liquidus), °C 1360
640
Melting Onset (Solidus), °C 1310
480
Specific Heat Capacity, J/kg-K 470
860
Thermal Conductivity, W/m-K 11
130
Thermal Expansion, µm/m-K 14
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
36
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
110

Otherwise Unclassified Properties

Base Metal Price, % relative 49
10
Density, g/cm3 8.2
3.1
Embodied Carbon, kg CO2/kg material 8.1
8.1
Embodied Energy, MJ/kg 120
140
Embodied Water, L/kg 280
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
31 to 34
Resilience: Unit (Modulus of Resilience), kJ/m3 130
1270 to 1440
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
45
Strength to Weight: Axial, points 22
46 to 47
Strength to Weight: Bending, points 20
46 to 47
Thermal Diffusivity, mm2/s 2.9
51
Thermal Shock Resistance, points 17
22 to 23

Alloy Composition

Aluminum (Al), % 1.0 to 1.7
85.7 to 89.5
Boron (B), % 0 to 0.0060
0
Carbon (C), % 0.030 to 0.1
0
Chromium (Cr), % 21 to 25
0.1 to 0.22
Copper (Cu), % 0 to 0.5
1.2 to 1.9
Iron (Fe), % 7.7 to 18
0 to 0.35
Magnesium (Mg), % 0
2.0 to 2.9
Manganese (Mn), % 0 to 1.0
0 to 0.2
Nickel (Ni), % 58 to 63
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.5
0 to 0.25
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0 to 0.5
0 to 0.1
Zinc (Zn), % 0
7.2 to 8.2
Residuals, % 0
0 to 0.15