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C51000 Bronze vs. AWS BAg-21

C51000 bronze belongs to the copper alloys classification, while AWS BAg-21 belongs to the otherwise unclassified metals. They have a modest 34% of their average alloy composition in common, which, by itself, doesn't mean much. There are 16 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is C51000 bronze and the bottom bar is AWS BAg-21.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
85
Poisson's Ratio 0.34
0.36
Shear Modulus, GPa 42
31
Tensile Strength: Ultimate (UTS), MPa 330 to 780
150

Thermal Properties

Latent Heat of Fusion, J/g 200
140
Melting Completion (Liquidus), °C 1050
800
Melting Onset (Solidus), °C 960
690
Specific Heat Capacity, J/kg-K 380
280
Thermal Expansion, µm/m-K 18
19

Otherwise Unclassified Properties

Density, g/cm3 8.8
9.8
Embodied Energy, MJ/kg 50
970

Common Calculations

Stiffness to Weight: Axial, points 7.0
4.8
Stiffness to Weight: Bending, points 18
15
Strength to Weight: Axial, points 10 to 25
4.2
Strength to Weight: Bending, points 12 to 21
6.4
Thermal Shock Resistance, points 12 to 28
6.6

Alloy Composition

Copper (Cu), % 92.9 to 95.5
27.5 to 29.5
Iron (Fe), % 0 to 0.1
0
Lead (Pb), % 0 to 0.050
0
Nickel (Ni), % 0
2.0 to 3.0
Phosphorus (P), % 0.030 to 0.35
0
Silver (Ag), % 0
62 to 64
Tin (Sn), % 4.5 to 5.8
5.0 to 7.0
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0
0 to 0.15