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7049 Aluminum vs. Type 2 Pewter

7049 aluminum belongs to the aluminum alloys classification, while Type 2 pewter belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown. 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 7049 aluminum and the bottom bar is Type 2 pewter.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
13 to 23
Elastic (Young's, Tensile) Modulus, GPa 70
52
Poisson's Ratio 0.32
0.35
Shear Modulus, GPa 27
19
Tensile Strength: Ultimate (UTS), MPa 510 to 530
52 to 68

Thermal Properties

Latent Heat of Fusion, J/g 370
69
Melting Completion (Liquidus), °C 640
300
Melting Onset (Solidus), °C 480
240
Specific Heat Capacity, J/kg-K 860
220
Thermal Expansion, µm/m-K 23
21

Otherwise Unclassified Properties

Base Metal Price, % relative 10
75
Density, g/cm3 3.1
7.3
Embodied Carbon, kg CO2/kg material 8.1
12
Embodied Energy, MJ/kg 140
210
Embodied Water, L/kg 1110
1220

Common Calculations

Stiffness to Weight: Axial, points 13
3.9
Stiffness to Weight: Bending, points 45
17
Strength to Weight: Axial, points 46 to 47
2.0 to 2.6
Strength to Weight: Bending, points 46 to 47
4.3 to 5.1
Thermal Shock Resistance, points 22 to 23
3.4 to 4.4

Alloy Composition

Aluminum (Al), % 85.7 to 89.5
0
Antimony (Sb), % 0
5.0 to 7.5
Arsenic (As), % 0
0 to 0.050
Chromium (Cr), % 0.1 to 0.22
0
Copper (Cu), % 1.2 to 1.9
1.5 to 3.0
Iron (Fe), % 0 to 0.35
0 to 0.015
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 2.0 to 2.9
0
Manganese (Mn), % 0 to 0.2
0
Silicon (Si), % 0 to 0.25
0
Tin (Sn), % 0
90 to 93
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 7.2 to 8.2
0 to 0.0050
Residuals, % 0 to 0.15
0