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AWS BAg-7 vs. C40500 Penny Bronze

AWS BAg-7 belongs to the otherwise unclassified metals classification, while C40500 penny bronze belongs to the copper alloys. They have a modest 27% of their average alloy composition in common, which, by itself, doesn't mean much. There are 17 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-7 and the bottom bar is C40500 penny bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 83
110
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 31
43
Tensile Strength: Ultimate (UTS), MPa 150
270 to 540

Thermal Properties

Latent Heat of Fusion, J/g 130
200
Melting Completion (Liquidus), °C 650
1060
Melting Onset (Solidus), °C 620
1020
Specific Heat Capacity, J/kg-K 290
380
Thermal Expansion, µm/m-K 20
18

Otherwise Unclassified Properties

Density, g/cm3 9.3
8.8
Embodied Carbon, kg CO2/kg material 55
2.7
Embodied Energy, MJ/kg 860
43

Common Calculations

Stiffness to Weight: Axial, points 4.9
7.2
Stiffness to Weight: Bending, points 16
18
Strength to Weight: Axial, points 4.5
8.5 to 17
Strength to Weight: Bending, points 6.7
10 to 17
Thermal Shock Resistance, points 6.4
9.5 to 19

Alloy Composition

Copper (Cu), % 21 to 23
94 to 96
Iron (Fe), % 0
0 to 0.050
Lead (Pb), % 0
0 to 0.050
Silver (Ag), % 55 to 57
0
Tin (Sn), % 4.5 to 5.5
0.7 to 1.3
Zinc (Zn), % 15 to 19
2.1 to 5.3
Residuals, % 0
0 to 0.5