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AWS BAg-28 vs. AWS BAg-3

Both AWS BAg-28 and AWS BAg-3 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 71% of their average alloy composition in common.

For each property being compared, the top bar is AWS BAg-28 and the bottom bar is AWS BAg-3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 88
80
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 33
30
Tensile Strength: Ultimate (UTS), MPa 150
170

Thermal Properties

Brazing Temperature, °C 680 to 840
690 to 900
Latent Heat of Fusion, J/g 140
120
Melting Completion (Liquidus), °C 710
690
Melting Onset (Solidus), °C 650
630
Specific Heat Capacity, J/kg-K 320
290
Thermal Expansion, µm/m-K 21
22

Otherwise Unclassified Properties

Density, g/cm3 8.9
9.3
Embodied Carbon, kg CO2/kg material 40
49
Embodied Energy, MJ/kg 630
770

Common Calculations

Stiffness to Weight: Axial, points 5.6
4.8
Stiffness to Weight: Bending, points 17
15
Strength to Weight: Axial, points 4.7
5.1
Strength to Weight: Bending, points 7.1
7.3
Thermal Shock Resistance, points 5.8
6.9

Alloy Composition

Cadmium (Cd), % 0
15 to 17
Copper (Cu), % 29 to 31
14.5 to 16.5
Nickel (Ni), % 0
2.5 to 3.5
Silver (Ag), % 39 to 41
49 to 51
Tin (Sn), % 1.5 to 2.5
0
Zinc (Zn), % 26 to 30
13.5 to 17.5
Residuals, % 0
0 to 0.15