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AWS BAg-34 vs. C21000 Brass

AWS BAg-34 belongs to the otherwise unclassified metals classification, while C21000 brass belongs to the copper alloys. They have a modest 37% 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-34 and the bottom bar is C21000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 89
110
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 34
43
Tensile Strength: Ultimate (UTS), MPa 170
240 to 450

Thermal Properties

Latent Heat of Fusion, J/g 140
200
Melting Completion (Liquidus), °C 720
1070
Melting Onset (Solidus), °C 650
1050
Specific Heat Capacity, J/kg-K 330
390
Thermal Expansion, µm/m-K 21
18

Otherwise Unclassified Properties

Density, g/cm3 8.8
8.8
Embodied Carbon, kg CO2/kg material 38
2.6
Embodied Energy, MJ/kg 600
42

Common Calculations

Stiffness to Weight: Axial, points 5.6
7.2
Stiffness to Weight: Bending, points 17
18
Strength to Weight: Axial, points 5.4
7.4 to 14
Strength to Weight: Bending, points 7.7
9.6 to 15
Thermal Shock Resistance, points 6.5
8.1 to 15

Alloy Composition


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Copper (Cu), % 31 to 33
94 to 96
Iron (Fe), % 0
0 to 0.050
Lead (Pb), % 0
0 to 0.030
Silver (Ag), % 37 to 39
0
Tin (Sn), % 1.5 to 2.5
0
Zinc (Zn), % 26 to 30
3.7 to 6.0
Residuals, % 0 to 0.15
0 to 0.2