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AWS BAg-21 vs. ZA-12

AWS BAg-21 belongs to the otherwise unclassified metals classification, while ZA-12 belongs to the zinc alloys. There are 16 material properties with values for both materials. Properties with values for just one material (21, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-21 and the bottom bar is ZA-12.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 85
83
Poisson's Ratio 0.36
0.26
Shear Modulus, GPa 31
33
Tensile Strength: Ultimate (UTS), MPa 150
260 to 400

Thermal Properties

Latent Heat of Fusion, J/g 140
120
Melting Completion (Liquidus), °C 800
430
Melting Onset (Solidus), °C 690
380
Specific Heat Capacity, J/kg-K 280
450
Thermal Expansion, µm/m-K 19
24

Otherwise Unclassified Properties

Density, g/cm3 9.8
6.0
Embodied Energy, MJ/kg 970
64

Common Calculations

Stiffness to Weight: Axial, points 4.8
7.6
Stiffness to Weight: Bending, points 15
24
Strength to Weight: Axial, points 4.2
12 to 19
Strength to Weight: Bending, points 6.4
15 to 20
Thermal Shock Resistance, points 6.6
9.4 to 14

Alloy Composition

Aluminum (Al), % 0
10.5 to 11.5
Cadmium (Cd), % 0
0 to 0.0060
Copper (Cu), % 27.5 to 29.5
0.5 to 1.2
Iron (Fe), % 0
0 to 0.075
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 0
0.015 to 0.030
Nickel (Ni), % 2.0 to 3.0
0 to 0.020
Silicon (Si), % 0
0 to 0.060
Silver (Ag), % 62 to 64
0
Tin (Sn), % 5.0 to 7.0
0 to 0.0030
Zinc (Zn), % 0
87.1 to 89
Residuals, % 0 to 0.15
0