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AWS BAg-20 vs. ZA-27

AWS BAg-20 belongs to the otherwise unclassified metals classification, while ZA-27 belongs to the zinc alloys. They have a modest 34% 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 (20, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-20 and the bottom bar is ZA-27.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 93
78
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 35
31
Tensile Strength: Ultimate (UTS), MPa 160
400 to 430

Thermal Properties

Latent Heat of Fusion, J/g 150
130
Melting Completion (Liquidus), °C 770
480
Melting Onset (Solidus), °C 680
380
Specific Heat Capacity, J/kg-K 340
530
Thermal Expansion, µm/m-K 21
26

Otherwise Unclassified Properties

Density, g/cm3 8.6
5.0
Embodied Carbon, kg CO2/kg material 30
4.2
Embodied Energy, MJ/kg 480
80

Common Calculations

Stiffness to Weight: Axial, points 6.0
8.6
Stiffness to Weight: Bending, points 17
28
Strength to Weight: Axial, points 5.1
22 to 24
Strength to Weight: Bending, points 7.6
24 to 25
Thermal Shock Resistance, points 5.9
14 to 15

Alloy Composition


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Aluminum (Al), % 0
25 to 28
Cadmium (Cd), % 0
0 to 0.0060
Copper (Cu), % 37 to 39
2.0 to 2.5
Iron (Fe), % 0
0 to 0.1
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 0
0.010 to 0.020
Nickel (Ni), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.080
Silver (Ag), % 29 to 31
0
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 30 to 34
69.3 to 73
Residuals, % 0 to 0.15
0